instance_id stringlengths 15 28 | file_changes listlengths 1 66 | repo stringclasses 11
values | base_commit stringlengths 40 40 | problem_statement stringlengths 23 39.4k | patch stringlengths 252 140k |
|---|---|---|---|---|---|
pandas-dev__pandas-53505 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/dtypes/cast.py:maybe_promote"
],
"edited_modules": [
"pandas/core/dtypes/cast.py:maybe_promote"
]
},
"file": "pandas/core/dtypes/cast.py"
}
] | pandas-dev/pandas | abcd440e11d061171b0a4eeb058748629a288568 | BUG: Data corruption when `mode` is performed on `timedelta64` dtype in pandas-2.0
### Pandas version checks
- [X] I have checked that this issue has not already been reported.
- [X] I have confirmed this bug exists on the [latest version](https://pandas.pydata.org/docs/whatsnew/index.html) of pandas.
- [ ] I ... | diff --git a/doc/source/whatsnew/v2.0.3.rst b/doc/source/whatsnew/v2.0.3.rst
index 3da469c2e1fe6..a40d8e333abed 100644
--- a/doc/source/whatsnew/v2.0.3.rst
+++ b/doc/source/whatsnew/v2.0.3.rst
@@ -22,6 +22,7 @@ Fixed regressions
Bug fixes
~~~~~~~~~
- Bug in :func:`RangeIndex.union` when using ``sort=True`` with anot... |
pandas-dev__pandas-53825 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/frame.py:DataFrame.stack"
],
"edited_modules": [
"pandas/core/frame.py:DataFrame"
]
},
"file": "pandas/core/frame.py"
},
{
"changes": {
"added... | pandas-dev/pandas | 4494f26c044674f857f50b387bd304196b3dd90b | BUG: DataFrame.stack sorting index values in rare cases
```
labels = list("zyx")
data = [14, 15, 12, 13, 10, 11]
ordered = False
cidx = pd.CategoricalIndex(labels, categories=sorted(labels), ordered=ordered)
cidx2 = pd.CategoricalIndex(["u", "v"], ordered=ordered)
midx = MultiIndex.from_product([cidx, cidx2])
df... | diff --git a/doc/source/whatsnew/v2.1.0.rst b/doc/source/whatsnew/v2.1.0.rst
index ee1f1b7be1b86..13a4a4531e6d0 100644
--- a/doc/source/whatsnew/v2.1.0.rst
+++ b/doc/source/whatsnew/v2.1.0.rst
@@ -104,7 +104,6 @@ Other enhancements
- Let :meth:`DataFrame.to_feather` accept a non-default :class:`Index` and non-string c... |
pandas-dev__pandas-48555 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/arrays/datetimes.py:DatetimeArray.astype"
],
"edited_modules": [
"pandas/core/arrays/datetimes.py:DatetimeArray"
]
},
"file": "pandas/core/arrays/datetimes.... | pandas-dev/pandas | 5f5a38261cd1a74898258eddd8553174f76eb748 | DOCS: series.astype return error when a datetime64 (unitless) series astype numpy.datetime64
### Pandas version checks
- [X] I have checked that this issue has not already been reported.
- [X] I have confirmed this bug exists on the [latest version](https://pandas.pydata.org/docs/whatsnew/index.html) of pandas.
... | diff --git a/doc/source/whatsnew/v1.5.0.rst b/doc/source/whatsnew/v1.5.0.rst
index 4d717aa45ccea..2c06dfe8272dc 100644
--- a/doc/source/whatsnew/v1.5.0.rst
+++ b/doc/source/whatsnew/v1.5.0.rst
@@ -936,6 +936,7 @@ Other Deprecations
- Deprecated the ``sort_columns`` argument in :meth:`DataFrame.plot` and :meth:`Series.... |
pandas-dev__pandas-49794 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/plotting/_matplotlib/hist.py:HistPlot.__init__",
"pandas/plotting/_matplotlib/hist.py:HistPlot._post_plot_logic"
],
"edited_modules": [
"pandas/plotting/_matplotlib/hi... | pandas-dev/pandas | b6736b449f3062cf05c224ad738c03cef62e248e | VIS: Can't set xlabel/ylabel on histogram
### Pandas version checks
- [X] I have checked that this issue has not already been reported.
- [X] I have confirmed this bug exists on the [latest version](https://pandas.pydata.org/docs/whatsnew/index.html) of pandas.
- [X] I have confirmed this bug exists on the main bran... | diff --git a/doc/source/whatsnew/v2.0.0.rst b/doc/source/whatsnew/v2.0.0.rst
index 0e6d1029d352b..41a141ae65981 100644
--- a/doc/source/whatsnew/v2.0.0.rst
+++ b/doc/source/whatsnew/v2.0.0.rst
@@ -64,6 +64,7 @@ Other enhancements
- :func:`date_range` now supports a ``unit`` keyword ("s", "ms", "us", or "ns") to specif... |
pandas-dev__pandas-58494 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/apply.py:Apply.normalize_dictlike_arg"
],
"edited_modules": [
"pandas/core/apply.py:Apply"
]
},
"file": "pandas/core/apply.py"
}
] | pandas-dev/pandas | 1556dc050511f7caaf3091a94660721840bb8c9a | BUG: Unexpected KeyError in `transform()` with dict-like func argument
### Pandas version checks
- [X] I have checked that this issue has not already been reported.
- [X] I have confirmed this bug exists on the [latest version](https://pandas.pydata.org/docs/whatsnew/index.html) of pandas.
- [ ] I have confirmed thi... | diff --git a/pandas/core/apply.py b/pandas/core/apply.py
index 832beeddcef3c..32e8aea7ea8ab 100644
--- a/pandas/core/apply.py
+++ b/pandas/core/apply.py
@@ -628,7 +628,8 @@ def normalize_dictlike_arg(
cols = Index(list(func.keys())).difference(obj.columns, sort=True)
if len(cols) > 0:
- ... |
pandas-dev__pandas-55633 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/dtypes/cast.py:np_can_hold_element"
],
"edited_modules": [
"pandas/core/dtypes/cast.py:np_can_hold_element"
]
},
"file": "pandas/core/dtypes/cast.py"
}
] | pandas-dev/pandas | b3a4b9740e4d1c864f8977ab81027db0686063fe | BUG: using iloc/loc to set a nullable int type on a non-nullable int column fails
### Pandas version checks
- [X] I have checked that this issue has not already been reported.
- [X] I have confirmed this bug exists on the [latest version](https://pandas.pydata.org/docs/whatsnew/index.html) of pandas.
- [ ] I have co... | diff --git a/doc/source/whatsnew/v2.2.0.rst b/doc/source/whatsnew/v2.2.0.rst
index c8c27f2f2e178..cf3756eb101be 100644
--- a/doc/source/whatsnew/v2.2.0.rst
+++ b/doc/source/whatsnew/v2.2.0.rst
@@ -344,9 +344,9 @@ Interval
Indexing
^^^^^^^^
+- Bug in :meth:`DataFrame.loc` when setting :class:`Series` with extension ... |
pandas-dev__pandas-49920 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/io/json/_normalize.py:_normalise_json"
],
"edited_modules": [
"pandas/io/json/_normalize.py:_normalise_json"
]
},
"file": "pandas/io/json/_normalize.py"
}
] | pandas-dev/pandas | 094b2c0a183a96411b7ee2bc26a98e6d82c8cbb9 | json_normalize - incorrect removing separator from beginning of key
```
print(pd.__version__)
jsn={'_id':{'a1':10,"l2":{"l3":0}}, "gg":4}
display(pd.json_normalize(jsn,sep='_'))
```
**Actual result:**
<html>
<body>
<!--StartFragment--><div class="output_container" style="width: 1488px; color: rgb(212, 212, 212... | diff --git a/doc/source/whatsnew/v2.0.0.rst b/doc/source/whatsnew/v2.0.0.rst
index 97ee96d8be25d..e657a98f6358f 100644
--- a/doc/source/whatsnew/v2.0.0.rst
+++ b/doc/source/whatsnew/v2.0.0.rst
@@ -717,6 +717,7 @@ I/O
- Bug in :func:`read_csv` for a single-line csv with fewer columns than ``names`` raised :class:`.erro... |
pandas-dev__pandas-51401 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/indexes/base.py:Index.min",
"pandas/core/indexes/base.py:Index.max"
],
"edited_modules": [
"pandas/core/indexes/base.py:Index"
]
},
"file": "pandas/... | pandas-dev/pandas | 0e12bfcd4b4d4e6f5ebe6cc6f99c0a5836df4478 | BUG: Some `Index` reductions fail with `string[pyarrow]`
### Pandas version checks
- [X] I have checked that this issue has not already been reported.
- [X] I have confirmed this bug exists on the [latest version](https://pandas.pydata.org/docs/whatsnew/index.html) of pandas.
- [X] I have confirmed this bug exists o... | diff --git a/doc/source/whatsnew/v2.0.0.rst b/doc/source/whatsnew/v2.0.0.rst
index 75aec514031b4..14ae995d2fd57 100644
--- a/doc/source/whatsnew/v2.0.0.rst
+++ b/doc/source/whatsnew/v2.0.0.rst
@@ -308,6 +308,7 @@ Other enhancements
- :meth:`Series.dropna` and :meth:`DataFrame.dropna` has gained ``ignore_index`` keywor... |
pandas-dev__pandas-50287 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/ops/__init__.py:align_method_FRAME"
],
"edited_modules": [
"pandas/core/ops/__init__.py:align_method_FRAME"
]
},
"file": "pandas/core/ops/__init__.py"
}
] | pandas-dev/pandas | 9993ec4059f15758c72bf943ccbc63edfb709f90 | Incorrect identically-labeled DataFrame objects Exception comes with df.compare method
When we have exact same columns in source and target dataframes and distinct number of rows then we are seeing below exception which according to me is misleading.
"**ValueError: Can only compare identically-labeled DataFrame obj... | diff --git a/doc/source/whatsnew/v2.0.0.rst b/doc/source/whatsnew/v2.0.0.rst
index 75ba169600962..f89bcc2c27ed0 100644
--- a/doc/source/whatsnew/v2.0.0.rst
+++ b/doc/source/whatsnew/v2.0.0.rst
@@ -98,6 +98,7 @@ Other enhancements
- Added :meth:`Index.infer_objects` analogous to :meth:`Series.infer_objects` (:issue:`50... |
pandas-dev__pandas-50364 | [
{
"changes": {
"added_entities": [
"pandas/io/parsers/python_parser.py:PythonParser._set_no_thousand_columns"
],
"added_modules": null,
"edited_entities": [
"pandas/io/parsers/python_parser.py:PythonParser.__init__",
"pandas/io/parsers/python_parser.py:PythonParse... | pandas-dev/pandas | 52c653b437db67815203872de6179b1f7adeb148 | BUG: str dtype ignored for column with '.' if thousands='.' for python engine
### Pandas version checks
- [X] I have checked that this issue has not already been reported.
- [X] I have confirmed this bug exists on the [latest version](https://pandas.pydata.org/docs/whatsnew/index.html) of pandas.
- [X] I have confir... | diff --git a/pandas/io/parsers/python_parser.py b/pandas/io/parsers/python_parser.py
index 315d18d052d9f..4b887a904400d 100644
--- a/pandas/io/parsers/python_parser.py
+++ b/pandas/io/parsers/python_parser.py
@@ -29,7 +29,11 @@
ParserError,
)
-from pandas.core.dtypes.common import is_integer
+from pandas.core.d... |
pandas-dev__pandas-47586 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/indexes/api.py:union_indexes"
],
"edited_modules": [
"pandas/core/indexes/api.py:union_indexes"
]
},
"file": "pandas/core/indexes/api.py"
}
] | pandas-dev/pandas | bd9a6f09264c58ef402d4c7faf5fc9d48c159194 | BUG: concat losing column dtype for extension arrays and object dtype
### Pandas version checks
- [X] I have checked that this issue has not already been reported.
- [X] I have confirmed this bug exists on the [latest version](https://pandas.pydata.org/docs/whatsnew/index.html) of pandas.
- [X] I have confirme... | diff --git a/doc/source/whatsnew/v1.5.0.rst b/doc/source/whatsnew/v1.5.0.rst
index 6fc1ec9c6ff90..2f5c2bb36f405 100644
--- a/doc/source/whatsnew/v1.5.0.rst
+++ b/doc/source/whatsnew/v1.5.0.rst
@@ -995,6 +995,7 @@ Reshaping
- Bug in :func:`get_dummies` that selected object and categorical dtypes but not string (:issue:... |
pandas-dev__pandas-47848 | [
{
"changes": {
"added_entities": [
"pandas/io/formats/style.py:Styler._get_numeric_subset_default"
],
"added_modules": null,
"edited_entities": [
"pandas/io/formats/style.py:Styler.background_gradient",
"pandas/io/formats/style.py:Styler.text_gradient",
"p... | pandas-dev/pandas | a62897ae5f5c68360f478bbd5facea231dd55f30 | BUG: Styling of a `DataFrame` with boolean column labels leaves out `False` and fails when adding non-numerical column
### Pandas version checks
- [X] I have checked that this issue has not already been reported.
- [X] I have confirmed this bug exists on the [latest version](https://pandas.pydata.org/docs/whatsnew/in... | diff --git a/doc/source/whatsnew/v1.5.0.rst b/doc/source/whatsnew/v1.5.0.rst
index 7f07187e34c78..cc44f43ba8acf 100644
--- a/doc/source/whatsnew/v1.5.0.rst
+++ b/doc/source/whatsnew/v1.5.0.rst
@@ -1042,6 +1042,7 @@ Styler
- Bug in :meth:`Styler.set_sticky` leading to white text on white background in dark mode (:issue... |
pandas-dev__pandas-55734 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/reshape/melt.py:wide_to_long"
],
"edited_modules": [
"pandas/core/reshape/melt.py:wide_to_long"
]
},
"file": "pandas/core/reshape/melt.py"
},
{
"cha... | pandas-dev/pandas | 9465449b09668c7fe6081e5ec4f96d5e4287d082 | DEPR: deprecate errors='ignore' in to_datetime and make output dtype predictable
### Feature Type
- [ ] Adding new functionality to pandas
- [X] Changing existing functionality in pandas
- [ ] Removing existing functionality in pandas
### Problem Description
currently, if you do `to_datetime(inputs)`, you don't r... | diff --git a/doc/source/user_guide/basics.rst b/doc/source/user_guide/basics.rst
index d3c9d83b943ce..33e9f9cabb46d 100644
--- a/doc/source/user_guide/basics.rst
+++ b/doc/source/user_guide/basics.rst
@@ -2261,23 +2261,6 @@ non-conforming elements intermixed that you want to represent as missing:
m = ["apple", pd.... |
pandas-dev__pandas-49140 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/frame.py:DataFrame.corrwith"
],
"edited_modules": [
"pandas/core/frame.py:DataFrame"
]
},
"file": "pandas/core/frame.py"
}
] | pandas-dev/pandas | 8608ac919fbad7fb656d6b9bc5ddf7f09ae7a430 | BUG: The behavior of DataFrame.corrwith against `Series` is changed?
### Pandas version checks
- [X] I have checked that this issue has not already been reported.
- [X] I have confirmed this bug exists on the [latest version](https://pandas.pydata.org/docs/whatsnew/index.html) of pandas.
- [X] I have confirmed this ... | diff --git a/doc/source/whatsnew/v1.5.1.rst b/doc/source/whatsnew/v1.5.1.rst
index 4518c6f544e48..d3a804ff9f400 100644
--- a/doc/source/whatsnew/v1.5.1.rst
+++ b/doc/source/whatsnew/v1.5.1.rst
@@ -88,6 +88,7 @@ Fixed regressions
- Fixed regression in :meth:`Series.groupby` and :meth:`DataFrame.groupby` when the groupe... |
pandas-dev__pandas-56488 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/reshape/merge.py:_AsOfMerge._validate_tolerance",
"pandas/core/reshape/merge.py:_AsOfMerge._get_join_indexers"
],
"edited_modules": [
"pandas/core/reshape/merge.p... | pandas-dev/pandas | cbe1b321d928bb00ab9809f109ab483db2bb6b2d | BUG: Can't do merge_asof with tolerance and pyarrow dtypes
### Pandas version checks
- [X] I have checked that this issue has not already been reported.
- [X] I have confirmed this bug exists on the [latest version](https://pandas.pydata.org/docs/whatsnew/index.html) of pandas.
- [ ] I have confirmed this bug exists... | diff --git a/doc/source/whatsnew/v2.2.0.rst b/doc/source/whatsnew/v2.2.0.rst
index 8209525721b98..e1e119a3adf79 100644
--- a/doc/source/whatsnew/v2.2.0.rst
+++ b/doc/source/whatsnew/v2.2.0.rst
@@ -666,6 +666,7 @@ Reshaping
- Bug in :func:`concat` renaming :class:`Series` when ``ignore_index=False`` (:issue:`15047`)
-... |
pandas-dev__pandas-56585 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/internals/blocks.py:Block.astype"
],
"edited_modules": [
"pandas/core/internals/blocks.py:Block"
]
},
"file": "pandas/core/internals/blocks.py"
}
] | pandas-dev/pandas | 6a65c64e77d625f55f7b17e2a270014e5bd49e31 | BUG: TypeError when using convert_dtypes() and pyarrow engine
### Pandas version checks
- [X] I have checked that this issue has not already been reported.
- [X] I have confirmed this bug exists on the [latest version](https://pandas.pydata.org/docs/whatsnew/index.html) of pandas.
- [X] I have confirmed this bug exi... | diff --git a/pandas/core/internals/blocks.py b/pandas/core/internals/blocks.py
index 1af2d9e739038..20eff9315bc80 100644
--- a/pandas/core/internals/blocks.py
+++ b/pandas/core/internals/blocks.py
@@ -746,7 +746,7 @@ def astype(
Block
"""
values = self.values
- if squeeze and values.nd... |
pandas-dev__pandas-51672 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/indexes/base.py:Index.sortlevel"
],
"edited_modules": [
"pandas/core/indexes/base.py:Index"
]
},
"file": "pandas/core/indexes/base.py"
},
{
"changes... | pandas-dev/pandas | c71645fff865c29e77bb81bd9510dba97d93a67c | BUG: `na_position` ignored when sorting `MultiIndex` with `level!=None`
### Pandas version checks
- [X] I have checked that this issue has not already been reported.
- [X] I have confirmed this bug exists on the [latest version](https://pandas.pydata.org/docs/whatsnew/index.html) of pandas.
- [x] I have confir... | diff --git a/doc/source/whatsnew/v2.1.0.rst b/doc/source/whatsnew/v2.1.0.rst
index 12d35288d1ee6..e6a114b491670 100644
--- a/doc/source/whatsnew/v2.1.0.rst
+++ b/doc/source/whatsnew/v2.1.0.rst
@@ -28,6 +28,7 @@ enhancement2
Other enhancements
^^^^^^^^^^^^^^^^^^
+- :meth:`MultiIndex.sortlevel` and :meth:`Index.sortl... |
pandas-dev__pandas-51605 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/indexes/multi.py:MultiIndex.isin"
],
"edited_modules": [
"pandas/core/indexes/multi.py:MultiIndex"
]
},
"file": "pandas/core/indexes/multi.py"
}
] | pandas-dev/pandas | b070d87f118709f7493dfd065a17ed506c93b59a | REGR: MultiIndex.isin with an empty iterable raises
On 1.5.x:
```
df = pd.DataFrame({'a': [1, 1, 2], 'b': [3, 4, 5]}).set_index(['a', 'b'])
print(df.index.isin([]))
# [False False False]
```
On 2.0.x:
TypeError: Cannot infer number of levels from empty list
Seems like an Index consisting of False is... | diff --git a/pandas/core/indexes/multi.py b/pandas/core/indexes/multi.py
index 92cb7b5fd5f47..b381752818ba0 100644
--- a/pandas/core/indexes/multi.py
+++ b/pandas/core/indexes/multi.py
@@ -3748,6 +3748,8 @@ def delete(self, loc) -> MultiIndex:
@doc(Index.isin)
def isin(self, values, level=None) -> npt.NDArray... |
pandas-dev__pandas-57297 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/generic.py:NDFrame.sort_index"
],
"edited_modules": [
"pandas/core/generic.py:NDFrame"
]
},
"file": "pandas/core/generic.py"
}
] | pandas-dev/pandas | 65b267a851fc3693463431308de4148999eff3d0 | BUG: `sort_index` not preserving `index` when `ascending=False`
### Pandas version checks
- [X] I have checked that this issue has not already been reported.
- [X] I have confirmed this bug exists on the [latest version](https://pandas.pydata.org/docs/whatsnew/index.html) of pandas.
- [ ] I have confirmed this bug e... | diff --git a/doc/source/whatsnew/v3.0.0.rst b/doc/source/whatsnew/v3.0.0.rst
index 2c39318fa28b3..503da28684d60 100644
--- a/doc/source/whatsnew/v3.0.0.rst
+++ b/doc/source/whatsnew/v3.0.0.rst
@@ -241,9 +241,9 @@ Styler
Other
^^^^^
+- Bug in :meth:`DataFrame.sort_index` when passing ``axis="columns"`` and ``ignore_... |
pandas-dev__pandas-52264 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/ops/array_ops.py:logical_op"
],
"edited_modules": [
"pandas/core/ops/array_ops.py:logical_op"
]
},
"file": "pandas/core/ops/array_ops.py"
}
] | pandas-dev/pandas | 1e2d87ba64783ebbaa90fb0829df29a3812014d0 | BUG: Inconsistent behavior with bitwise operations on Series with np.array vs. list
### Pandas version checks
- [X] I have checked that this issue has not already been reported.
- [X] I have confirmed this bug exists on the [latest version](https://pandas.pydata.org/docs/whatsnew/index.html) of pandas.
- [X] I have ... | diff --git a/doc/source/whatsnew/v2.1.0.rst b/doc/source/whatsnew/v2.1.0.rst
index bac567b537edc..475d48be01a9e 100644
--- a/doc/source/whatsnew/v2.1.0.rst
+++ b/doc/source/whatsnew/v2.1.0.rst
@@ -115,6 +115,7 @@ Deprecations
- Deprecated 'method', 'limit', and 'fill_axis' keywords in :meth:`DataFrame.align` and :meth... |
pandas-dev__pandas-53856 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/io/sql.py:SQLTable.insert_data"
],
"edited_modules": [
"pandas/io/sql.py:SQLTable"
]
},
"file": "pandas/io/sql.py"
}
] | pandas-dev/pandas | af804a92ea4fcad8b01e928b6a38bbc2e1a60c84 | BUG: to_sql fails with arrow date column
### Pandas version checks
- [X] I have checked that this issue has not already been reported.
- [X] I have confirmed this bug exists on the [latest version](https://pandas.pydata.org/docs/whatsnew/index.html) of pandas.
- [x] I have confirmed this bug exists on the [main bran... | diff --git a/doc/source/whatsnew/v2.1.0.rst b/doc/source/whatsnew/v2.1.0.rst
index 7b9efd7f593dd..fbcb4b05ae34a 100644
--- a/doc/source/whatsnew/v2.1.0.rst
+++ b/doc/source/whatsnew/v2.1.0.rst
@@ -364,12 +364,14 @@ Datetimelike
- :meth:`DatetimeIndex.map` with ``na_action="ignore"`` now works as expected. (:issue:`516... |
pandas-dev__pandas-53495 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/indexes/base.py:Index._union"
],
"edited_modules": [
"pandas/core/indexes/base.py:Index"
]
},
"file": "pandas/core/indexes/base.py"
},
{
"changes": ... | pandas-dev/pandas | d2cd5e21f85ac4c5e47ce2af703fa76feaf0478c | BUG: `RangeIndex.union` not sorting results when `sort=True` in pandas-2.0
### Pandas version checks
- [X] I have checked that this issue has not already been reported.
- [X] I have confirmed this bug exists on the [latest version](https://pandas.pydata.org/docs/whatsnew/index.html) of pandas.
- [ ] I have con... | diff --git a/doc/source/whatsnew/v2.0.3.rst b/doc/source/whatsnew/v2.0.3.rst
index 89c64b02e0cb5..3da469c2e1fe6 100644
--- a/doc/source/whatsnew/v2.0.3.rst
+++ b/doc/source/whatsnew/v2.0.3.rst
@@ -21,6 +21,7 @@ Fixed regressions
Bug fixes
~~~~~~~~~
+- Bug in :func:`RangeIndex.union` when using ``sort=True`` with an... |
pandas-dev__pandas-49249 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": null,
"edited_modules": null
},
"file": "pandas/_typing.py"
},
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/io/json/_js... | pandas-dev/pandas | 8661548d12fa6809e89e5771e87562867a5ad3a9 | ENH: Add `engine` keyword to `read_json` to enable reading from pyarrow
pyarrow has a `read_json` function that could be used as an alternative parser for `pd.read_json` https://arrow.apache.org/docs/python/generated/pyarrow.json.read_json.html#pyarrow.json.read_json
Like we have for `read_csv` and `read_parquet`, I... | diff --git a/doc/source/user_guide/io.rst b/doc/source/user_guide/io.rst
index 1c3cdd9f4cffd..d0cd5c300248b 100644
--- a/doc/source/user_guide/io.rst
+++ b/doc/source/user_guide/io.rst
@@ -2069,6 +2069,8 @@ is ``None``. To explicitly force ``Series`` parsing, pass ``typ=series``
* ``lines`` : reads file as one json ob... |
pandas-dev__pandas-49333 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/arrays/datetimes.py:objects_to_datetime64ns"
],
"edited_modules": [
"pandas/core/arrays/datetimes.py:objects_to_datetime64ns"
]
},
"file": "pandas/core/arra... | pandas-dev/pandas | 96b57806a3779cb63287db5f0e4116020854092e | BUG: pandas.to_datetime() does not respect exact format string with ISO8601
#### Code Sample, a copy-pastable example if possible
```
import pandas as pd
s = pd.Series(['2012-01-01 10:00', '2012-02-10 23:20', '2012-03-22 12:40', '2012-05-02 02:00', '2012-06-11 15:20', '2012-07-22 04:40','2012-08-31 18:00', '2012-10-11... | diff --git a/doc/source/whatsnew/v2.0.0.rst b/doc/source/whatsnew/v2.0.0.rst
index d114d72633012..4577d20a509ce 100644
--- a/doc/source/whatsnew/v2.0.0.rst
+++ b/doc/source/whatsnew/v2.0.0.rst
@@ -644,6 +644,7 @@ Conversion
- Bug in :meth:`Series.convert_dtypes` not converting dtype to nullable dtype when :class:`Seri... |
pandas-dev__pandas-50067 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/internals/blocks.py:ObjectBlock.convert"
],
"edited_modules": [
"pandas/core/internals/blocks.py:ObjectBlock"
]
},
"file": "pandas/core/internals/blocks.py"... | pandas-dev/pandas | 03a981ae61e685bb6c35234a6fb78a68373af0c6 | BUG: `maybe_convert_objects` fails for byte series
### Pandas version checks
- [X] I have checked that this issue has not already been reported.
- [X] I have confirmed this bug exists on the [latest version](https://pandas.pydata.org/docs/whatsnew/index.html) of pandas.
- [X] I have confirmed this bug exists on th... | diff --git a/pandas/core/internals/blocks.py b/pandas/core/internals/blocks.py
index 6aac736abf10a..0999a9af3f72a 100644
--- a/pandas/core/internals/blocks.py
+++ b/pandas/core/internals/blocks.py
@@ -1969,6 +1969,9 @@ def convert(
attempt to cast any object types to better types return a copy of
the ... |
pandas-dev__pandas-48185 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/array_algos/take.py:_take_2d_multi_object"
],
"edited_modules": [
"pandas/core/array_algos/take.py:_take_2d_multi_object"
]
},
"file": "pandas/core/array_al... | pandas-dev/pandas | e7414aa17f67d05b6ae5a7a66881178936c8b2ac | BUG: when re-index is filling values for both index and columns with dtype uint8 the filled values are incorrect
### Pandas version checks
- [X] I have checked that this issue has not already been reported.
- [X] I have confirmed this bug exists on the [latest version](https://pandas.pydata.org/docs/whatsnew/inde... | diff --git a/doc/source/whatsnew/v1.6.0.rst b/doc/source/whatsnew/v1.6.0.rst
index 6b7ae767d79d4..67e65cfc26764 100644
--- a/doc/source/whatsnew/v1.6.0.rst
+++ b/doc/source/whatsnew/v1.6.0.rst
@@ -151,7 +151,7 @@ Interval
Indexing
^^^^^^^^
--
+- Bug in :meth:`DataFrame.reindex` filling with wrong values when indexi... |
pandas-dev__pandas-56650 | [
{
"changes": {
"added_entities": [
"pandas/core/arrays/arrow/array.py:ArrowExtensionArray._dt_days",
"pandas/core/arrays/arrow/array.py:ArrowExtensionArray._dt_hours",
"pandas/core/arrays/arrow/array.py:ArrowExtensionArray._dt_minutes",
"pandas/core/arrays/arrow/array.py:Ar... | pandas-dev/pandas | 62dbbe6713b6467ff10673eb10adaf4342e67780 | BUG: Cannot access Timedelta properties with Arrow Backend
### Pandas version checks
- [X] I have checked that this issue has not already been reported.
- [X] I have confirmed this bug exists on the [latest version](https://pandas.pydata.org/docs/whatsnew/index.html) of pandas.
- [ ] I have confirmed this bug ... | diff --git a/doc/source/whatsnew/v2.2.0.rst b/doc/source/whatsnew/v2.2.0.rst
index 5b955aa45219a..f7e1cc9cbe36d 100644
--- a/doc/source/whatsnew/v2.2.0.rst
+++ b/doc/source/whatsnew/v2.2.0.rst
@@ -316,6 +316,7 @@ Other enhancements
- :meth:`Series.ffill`, :meth:`Series.bfill`, :meth:`DataFrame.ffill`, and :meth:`DataF... |
pandas-dev__pandas-54087 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/reshape/merge.py:merge",
"pandas/core/reshape/merge.py:_cross_merge"
],
"edited_modules": [
"pandas/core/reshape/merge.py:merge",
"pandas/core/reshape/mer... | pandas-dev/pandas | dbb19b9f6ec77edcbdf535ff506c3b7659fc0c69 | BUG: In development version, `pd.merge` with `Series` arguments an `how="cross"` fails
### Pandas version checks
- [X] I have checked that this issue has not already been reported.
- [X] I have confirmed this bug exists on the [latest version](https://pandas.pydata.org/docs/whatsnew/index.html) of pandas.
- [X] I ha... | diff --git a/pandas/core/reshape/merge.py b/pandas/core/reshape/merge.py
index 0e4a64d7e6c5f..a904f4d9fbe13 100644
--- a/pandas/core/reshape/merge.py
+++ b/pandas/core/reshape/merge.py
@@ -145,10 +145,12 @@ def merge(
indicator: str | bool = False,
validate: str | None = None,
) -> DataFrame:
+ left_df = ... |
pandas-dev__pandas-52518 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/array_algos/masked_reductions.py:var",
"pandas/core/array_algos/masked_reductions.py:std"
],
"edited_modules": [
"pandas/core/array_algos/masked_reductions.py:var... | pandas-dev/pandas | efccff865544ea434f67b77af2486406af4d1003 | BUG: RuntimeWarning on describe for a single element Series of dtype Float64
### Pandas version checks
- [X] I have checked that this issue has not already been reported.
- [X] I have confirmed this bug exists on the [latest version](https://pandas.pydata.org/docs/whatsnew/index.html) of pandas.
- [ ] I have confirm... | diff --git a/doc/source/whatsnew/v2.0.1.rst b/doc/source/whatsnew/v2.0.1.rst
index 882b600278c88..caf237fb15163 100644
--- a/doc/source/whatsnew/v2.0.1.rst
+++ b/doc/source/whatsnew/v2.0.1.rst
@@ -14,6 +14,7 @@ including other versions of pandas.
Fixed regressions
~~~~~~~~~~~~~~~~~
- Fixed regression for subclassed ... |
pandas-dev__pandas-49912 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/algorithms.py:value_counts"
],
"edited_modules": [
"pandas/core/algorithms.py:value_counts"
]
},
"file": "pandas/core/algorithms.py"
},
{
"changes":... | pandas-dev/pandas | 87f069a2f850dab81a4dab648f1d6fe3556df4f9 | API: various .value_counts() result in different names / indices
### Pandas version checks
- [X] I have checked that this issue has not already been reported.
- [X] I have confirmed this bug exists on the [latest version](https://pandas.pydata.org/docs/whatsnew/index.html) of pandas.
- [X] I have confirmed thi... | diff --git a/doc/source/whatsnew/v2.0.0.rst b/doc/source/whatsnew/v2.0.0.rst
index 4039276caa0af..7d9b648887f1a 100644
--- a/doc/source/whatsnew/v2.0.0.rst
+++ b/doc/source/whatsnew/v2.0.0.rst
@@ -330,6 +330,36 @@ a supported dtype:
pd.Series(["2016-01-01"], dtype="datetime64[D]")
+.. _whatsnew_200.api_breaking... |
pandas-dev__pandas-51869 | [
{
"changes": {
"added_entities": [
"pandas/core/arrays/arrow/array.py:ArrowExtensionArray._dt_to_pydatetime"
],
"added_modules": null,
"edited_entities": null,
"edited_modules": [
"pandas/core/arrays/arrow/array.py:ArrowExtensionArray"
]
},
"file": "pa... | pandas-dev/pandas | acf3395aaafbc15ce461f6667f0b1d63bf3766d1 | BUG: 'ArrowExtensionArray' object has no attribute 'to_pydatetime' when the colunm type is datetime in pandas to_sql command
### Pandas version checks
- [X] I have checked that this issue has not already been reported.
- [X] I have confirmed this bug exists on the [latest version](https://pandas.pydata.org/docs/w... | diff --git a/pandas/core/arrays/arrow/array.py b/pandas/core/arrays/arrow/array.py
index d8b0b53331229..6084634503d97 100644
--- a/pandas/core/arrays/arrow/array.py
+++ b/pandas/core/arrays/arrow/array.py
@@ -2090,6 +2090,9 @@ def _dt_round(
):
return self._round_temporally("round", freq, ambiguous, nonex... |
pandas-dev__pandas-47550 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/computation/eval.py:eval"
],
"edited_modules": [
"pandas/core/computation/eval.py:eval"
]
},
"file": "pandas/core/computation/eval.py"
}
] | pandas-dev/pandas | 065b51c1a17c6ee472af0273c0a16dfc55e26fb5 | REGR: DataFrame.eval not respecting inplace argument in pandas 1.4
```python
import pandas as pd
import numpy as np
# Example for eval
pdf = pd.DataFrame({"A": range(1, 6), "B": range(10, 0, -2), "C": range(11, 16)})
pser = pdf.A
pdf.eval("A = B + C", inplace=True)
# pser != pdf.A after 1.4
```
_Originally... | diff --git a/doc/source/whatsnew/v1.4.4.rst b/doc/source/whatsnew/v1.4.4.rst
index 57b8fdee5888a..1e7ed256c05ef 100644
--- a/doc/source/whatsnew/v1.4.4.rst
+++ b/doc/source/whatsnew/v1.4.4.rst
@@ -19,6 +19,7 @@ Fixed regressions
- Fixed regression in :meth:`DataFrame.loc` not updating the cache correctly after values ... |
pandas-dev__pandas-50685 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/array_algos/quantile.py:_nanpercentile"
],
"edited_modules": [
"pandas/core/array_algos/quantile.py:_nanpercentile"
]
},
"file": "pandas/core/array_algos/qu... | pandas-dev/pandas | fdd71632615d1db02fb606667e90b632470fb4dc | BUG: `RuntimeWarning` emitted when computing `quantile` on all `pd.NA` `Series`
### Pandas version checks
- [X] I have checked that this issue has not already been reported.
- [X] I have confirmed this bug exists on the [latest version](https://pandas.pydata.org/docs/whatsnew/index.html) of pandas.
- [ ] I have conf... | diff --git a/doc/source/whatsnew/v1.5.3.rst b/doc/source/whatsnew/v1.5.3.rst
index 2141f672462ef..92577c48b865b 100644
--- a/doc/source/whatsnew/v1.5.3.rst
+++ b/doc/source/whatsnew/v1.5.3.rst
@@ -28,6 +28,7 @@ Fixed regressions
Bug fixes
~~~~~~~~~
- Bug in :meth:`.Styler.to_excel` leading to error when unrecognized... |
pandas-dev__pandas-54997 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/dtypes/common.py:is_all_strings"
],
"edited_modules": [
"pandas/core/dtypes/common.py:is_all_strings"
]
},
"file": "pandas/core/dtypes/common.py"
}
] | pandas-dev/pandas | 8664572fe63dbcb865588d9d564b49a572c3351e | BUG: is_string_dtype(pd.Index([], dtype='O')) returns `False`
### Pandas version checks
- [X] I have checked that this issue has not already been reported.
- [X] I have confirmed this bug exists on the [latest version](https://pandas.pydata.org/docs/whatsnew/index.html) of pandas.
- [ ] I have confirmed this bug e... | diff --git a/doc/source/whatsnew/v2.2.0.rst b/doc/source/whatsnew/v2.2.0.rst
index fa3cef6d9457d..2198a3107d297 100644
--- a/doc/source/whatsnew/v2.2.0.rst
+++ b/doc/source/whatsnew/v2.2.0.rst
@@ -253,6 +253,7 @@ Bug fixes
~~~~~~~~~
- Bug in :class:`AbstractHolidayCalendar` where timezone data was not propagated when... |
pandas-dev__pandas-48660 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/io/formats/css.py:_border_expander"
],
"edited_modules": [
"pandas/io/formats/css.py:_border_expander",
"pandas/io/formats/css.py:CSSResolver"
]
},
"file... | pandas-dev/pandas | d1ecf63e2040daecad6e0a8485a35e8a23393795 | BUG: `df.to_excel` fails for `"border-style: hair"` with `xlsxwriter`
### Pandas version checks
- [X] I have checked that this issue has not already been reported.
- [X] I have confirmed this bug exists on the [latest version](https://pandas.pydata.org/docs/whatsnew/index.html) of pandas.
- [X] I have confirme... | diff --git a/doc/source/user_guide/style.ipynb b/doc/source/user_guide/style.ipynb
index 43021fcbc13fb..620e3806a33b5 100644
--- a/doc/source/user_guide/style.ipynb
+++ b/doc/source/user_guide/style.ipynb
@@ -1594,8 +1594,9 @@
"\n",
"\n",
"- Only CSS2 named colors and hex colors of the form `#rgb` or `#r... |
pandas-dev__pandas-52058 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/arrays/arrow/array.py:ArrowExtensionArray._dt_to_pydatetime"
],
"edited_modules": [
"pandas/core/arrays/arrow/array.py:ArrowExtensionArray"
]
},
"file": "pa... | pandas-dev/pandas | 57c49405f2bd31f797991f2a36dfa0036cb5adfe | BUG: ArrowExtensionArray' object has no attribute 'to_pydatetime when using to_sql command with a dataframe with date columns
### Pandas version checks
- [X] I have checked that this issue has not already been reported.
- [X] I have confirmed this bug exists on the [latest version](https://pandas.pydata.org/docs... | diff --git a/pandas/core/arrays/arrow/array.py b/pandas/core/arrays/arrow/array.py
index 2313e28950de7..353da80e27464 100644
--- a/pandas/core/arrays/arrow/array.py
+++ b/pandas/core/arrays/arrow/array.py
@@ -2091,7 +2091,10 @@ def _dt_round(
return self._round_temporally("round", freq, ambiguous, nonexistent)... |
pandas-dev__pandas-49091 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/io/excel/_base.py:read_excel",
"pandas/io/excel/_base.py:BaseExcelReader.parse",
"pandas/io/excel/_base.py:ExcelFile.parse"
],
"edited_modules": [
"pandas/io/e... | pandas-dev/pandas | dbe0c10ce8d7d8682d13ca7fd46add489065ea9a | ENH: add option to get nullable dtypes to pd.read_csv
- [x] I have checked that this issue has not already been reported.
- [x] I have confirmed this bug exists on the latest version of pandas.
- [ ] (optional) I have confirmed this bug exists on the master branch of pandas.
---
#### Code Sample, a copy-pas... | diff --git a/doc/source/whatsnew/v2.0.0.rst b/doc/source/whatsnew/v2.0.0.rst
index 060de8ff8ef09..87268780b0def 100644
--- a/doc/source/whatsnew/v2.0.0.rst
+++ b/doc/source/whatsnew/v2.0.0.rst
@@ -41,7 +41,7 @@ Other enhancements
- :meth:`.DataFrameGroupBy.quantile` and :meth:`.SeriesGroupBy.quantile` now preserve nul... |
pandas-dev__pandas-51009 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/frame.py:DataFrame.dropna"
],
"edited_modules": [
"pandas/core/frame.py:DataFrame"
]
},
"file": "pandas/core/frame.py"
},
{
"changes": {
"adde... | pandas-dev/pandas | 4ce3757a0295638990a452b11164a8ab46e6a1ea | API: add ignore_index keyword to dropna() and other similar functions
#### Code Sample
**Before**
```python
df = pd.DataFrame({'A': [0, pd.NA, 1]})
df.dropna().reset_index(drop=True)
```
**After**
```python
df = pd.DataFrame({'A': [0, pd.NA, 1]})
df.dropna(ignore_index=True)
```
#### Problem descript... | diff --git a/doc/source/whatsnew/v2.0.0.rst b/doc/source/whatsnew/v2.0.0.rst
index 76aa426cc1cee..378a24016c9b0 100644
--- a/doc/source/whatsnew/v2.0.0.rst
+++ b/doc/source/whatsnew/v2.0.0.rst
@@ -183,6 +183,7 @@ Other enhancements
- Added ``copy`` parameter to :meth:`Series.infer_objects` and :meth:`DataFrame.infer_o... |
pandas-dev__pandas-57402 | [
{
"changes": {
"added_entities": [
"pandas/core/dtypes/missing.py:construct_1d_array_from_inferred_fill_value"
],
"added_modules": [
"pandas/core/dtypes/missing.py:construct_1d_array_from_inferred_fill_value"
],
"edited_entities": null,
"edited_modules": null
... | pandas-dev/pandas | 92a52e231534de236c4e878008a4365b4b1da291 | BUG: wrong future Warning on string assignment in certain condition
### Pandas version checks
- [X] I have checked that this issue has not already been reported.
- [X] I have confirmed this bug exists on the [latest version](https://pandas.pydata.org/docs/whatsnew/index.html) of pandas.
- [ ] I have confirmed ... | diff --git a/doc/source/whatsnew/v2.2.1.rst b/doc/source/whatsnew/v2.2.1.rst
index 9733aff0e6eb5..5e814ec2a1b92 100644
--- a/doc/source/whatsnew/v2.2.1.rst
+++ b/doc/source/whatsnew/v2.2.1.rst
@@ -24,6 +24,7 @@ Fixed regressions
- Fixed regression in :meth:`CategoricalIndex.difference` raising ``KeyError`` when other ... |
pandas-dev__pandas-56757 | [
{
"changes": {
"added_entities": [
"pandas/core/arrays/arrow/array.py:ArrowExtensionArray.interpolate"
],
"added_modules": null,
"edited_entities": null,
"edited_modules": [
"pandas/core/arrays/arrow/array.py:ArrowExtensionArray"
]
},
"file": "pandas/c... | pandas-dev/pandas | d711b1d2ff9ee2c3faf0e118535d3d6218886a9d | `.interpolate()` Method Incompatible with `float[pyarrow]` Dtype
### Pandas version checks
- [X] I have checked that this issue has not already been reported.
- [X] I have confirmed this bug exists on the [latest version](https://pandas.pydata.org/docs/whatsnew/index.html) of pandas.
- [ ] I have confirmed this bug ... | diff --git a/doc/source/whatsnew/v2.2.0.rst b/doc/source/whatsnew/v2.2.0.rst
index 0b04a1d313a6d..999f0ae212be7 100644
--- a/doc/source/whatsnew/v2.2.0.rst
+++ b/doc/source/whatsnew/v2.2.0.rst
@@ -323,6 +323,7 @@ Other enhancements
- :meth:`ExtensionArray.duplicated` added to allow extension type implementations of th... |
pandas-dev__pandas-52565 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/frame.py:DataFrame.sort_values"
],
"edited_modules": [
"pandas/core/frame.py:DataFrame"
]
},
"file": "pandas/core/frame.py"
}
] | pandas-dev/pandas | e9e034badbd2e36379958b93b611bf666c7ab360 | BUG: dataframe index not being reset if sort_values called with ignore_index=True
### Pandas version checks
- [X] I have checked that this issue has not already been reported.
- [X] I have confirmed this bug exists on the [latest version](https://pandas.pydata.org/docs/whatsnew/index.html) of pandas.
- [ ] I have co... | diff --git a/doc/source/whatsnew/v2.0.1.rst b/doc/source/whatsnew/v2.0.1.rst
index caf237fb15163..12134fe79df6d 100644
--- a/doc/source/whatsnew/v2.0.1.rst
+++ b/doc/source/whatsnew/v2.0.1.rst
@@ -15,6 +15,7 @@ Fixed regressions
~~~~~~~~~~~~~~~~~
- Fixed regression for subclassed Series when constructing from a dicti... |
pandas-dev__pandas-49438 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/reshape/pivot.py:_generate_marginal_results"
],
"edited_modules": [
"pandas/core/reshape/pivot.py:_generate_marginal_results"
]
},
"file": "pandas/core/resh... | pandas-dev/pandas | 6122c7de128fce3a84d91ef91b9dc3a914531745 | BUG: pivot_table with margins=True on empty DataFrame results in ValueError
### Pandas version checks
- [X] I have checked that this issue has not already been reported.
- [X] I have confirmed this bug exists on the [latest version](https://pandas.pydata.org/docs/whatsnew/index.html) of pandas.
- [X] I have confirme... | diff --git a/doc/source/whatsnew/v2.0.0.rst b/doc/source/whatsnew/v2.0.0.rst
index 6d1f2afab3c6d..6c15c056fc7ce 100644
--- a/doc/source/whatsnew/v2.0.0.rst
+++ b/doc/source/whatsnew/v2.0.0.rst
@@ -441,7 +441,7 @@ Reshaping
- Bug in :meth:`DataFrame.unstack` and :meth:`Series.unstack` unstacking wrong level of :class:`... |
pandas-dev__pandas-49815 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/indexes/base.py:Index._string_data_error"
],
"edited_modules": [
"pandas/core/indexes/base.py:Index"
]
},
"file": "pandas/core/indexes/base.py"
},
{
... | pandas-dev/pandas | be79267e9b290221cb0adb6653f36c2ddef86327 | API: Should NumericIndex([1 2, 3]).dtype be int64 or int32 on 32-bit systems?
I've had some 32-bit issues while working on removing `Int64Index` and friends from the code base. One issue that I would appreciate input on the the desired dtype for numeric indexes on 32-bit systems. Currently we have (for 32-bit systems):... | diff --git a/pandas/core/indexes/base.py b/pandas/core/indexes/base.py
index c24c94a786068..0bc568fb122ed 100644
--- a/pandas/core/indexes/base.py
+++ b/pandas/core/indexes/base.py
@@ -4962,14 +4962,6 @@ def _raise_scalar_data_error(cls, data):
f"kind, {repr(data)} was passed"
)
- @final
- ... |
pandas-dev__pandas-47900 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/indexes/multi.py:MultiIndex.copy"
],
"edited_modules": [
"pandas/core/indexes/multi.py:MultiIndex"
]
},
"file": "pandas/core/indexes/multi.py"
}
] | pandas-dev/pandas | 23c53bb6db707104cf2d805a8670d94c2e4b4ebf | PERF: MultiIndex.copy(deep=False) not preserving _id
### Pandas version checks
- [X] I have checked that this issue has not already been reported.
- [X] I have confirmed this bug exists on the [latest version](https://pandas.pydata.org/docs/whatsnew/index.html) of pandas.
- [X] I have confirmed this bug exists on th... | diff --git a/pandas/core/indexes/multi.py b/pandas/core/indexes/multi.py
index fd6b6ba63d7e0..b4b576df9918e 100644
--- a/pandas/core/indexes/multi.py
+++ b/pandas/core/indexes/multi.py
@@ -1190,6 +1190,7 @@ def copy(
This could be potentially expensive on large MultiIndex objects.
"""
names =... |
pandas-dev__pandas-47754 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/plotting/_matplotlib/core.py:MPLPlot._adorn_subplots"
],
"edited_modules": [
"pandas/plotting/_matplotlib/core.py:MPLPlot"
]
},
"file": "pandas/plotting/_matplot... | pandas-dev/pandas | 0a6be3843423d34acd6d75d6fd3b474ab14549da | BUG: Set y-axis label, limits and ticks for a secondary y-axis
### Pandas version checks
- [X] I have checked that this issue has not already been reported.
- [X] I have confirmed this bug exists on the [latest version](https://pandas.pydata.org/docs/whatsnew/index.html) of pandas.
- [X] I have confirmed this bug ex... | diff --git a/doc/source/whatsnew/v1.5.0.rst b/doc/source/whatsnew/v1.5.0.rst
index b081f743f9b0b..6283321c7f710 100644
--- a/doc/source/whatsnew/v1.5.0.rst
+++ b/doc/source/whatsnew/v1.5.0.rst
@@ -977,6 +977,7 @@ Plotting
- The function :meth:`DataFrame.plot.scatter` now accepts ``color`` as an alias for ``c`` and ``s... |
pandas-dev__pandas-53443 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": null,
"edited_modules": null
},
"file": "pandas/core/shared_docs.py"
},
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/io... | pandas-dev/pandas | 8cf4ab491b06274f555d1ea305c172354208747a | ENH: df.to_pickle xz lzma preset=level for compression compresslevel
### Feature Type
- [X] Adding new functionality to pandas
- [ ] Changing existing functionality in pandas
- [ ] Removing existing functionality in pandas
### Problem Description
I wish I could use pandas to save dataframe with maximum possible c... | diff --git a/doc/source/whatsnew/v2.1.0.rst b/doc/source/whatsnew/v2.1.0.rst
index 2c5263f447951..60346301d34d7 100644
--- a/doc/source/whatsnew/v2.1.0.rst
+++ b/doc/source/whatsnew/v2.1.0.rst
@@ -98,9 +98,9 @@ Other enhancements
- Performance improvement in :func:`read_csv` (:issue:`52632`) with ``engine="c"``
- :me... |
pandas-dev__pandas-48587 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/strings/accessor.py:StringMethods.startswith",
"pandas/core/strings/accessor.py:StringMethods.endswith"
],
"edited_modules": [
"pandas/core/strings/accessor.py:St... | pandas-dev/pandas | b5632fb310c26292ac37c64b6a514f50eff1d77d | BUG: 1.5rc raises TypeError when passing tuple to series.str.startswith()
### Pandas version checks
- [X] I have checked that this issue has not already been reported.
- [X] I have confirmed this bug exists on the [latest version](https://pandas.pydata.org/docs/whatsnew/index.html) of pandas.
- [X] I have confirmed ... | diff --git a/pandas/core/strings/accessor.py b/pandas/core/strings/accessor.py
index f9852005314a4..46628eb3e17dd 100644
--- a/pandas/core/strings/accessor.py
+++ b/pandas/core/strings/accessor.py
@@ -19,6 +19,7 @@
from pandas._typing import (
DtypeObj,
F,
+ Scalar,
)
from pandas.util._decorators import... |
pandas-dev__pandas-55283 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/resample.py:TimeGrouper._adjust_bin_edges"
],
"edited_modules": [
"pandas/core/resample.py:TimeGrouper"
]
},
"file": "pandas/core/resample.py"
}
] | pandas-dev/pandas | 89bd5695df3ccf5b9186b4645118656656831593 | BUG: resample('B') ignores `closed` and `label`?
### Pandas version checks
- [X] I have checked that this issue has not already been reported.
- [X] I have confirmed this bug exists on the [latest version](https://pandas.pydata.org/docs/whatsnew/index.html) of pandas.
- [X] I have confirmed this bug exists on the [m... | diff --git a/doc/source/whatsnew/v2.1.2.rst b/doc/source/whatsnew/v2.1.2.rst
index 6fec66ec8d556..1a25b848e0f84 100644
--- a/doc/source/whatsnew/v2.1.2.rst
+++ b/doc/source/whatsnew/v2.1.2.rst
@@ -13,6 +13,7 @@ including other versions of pandas.
Fixed regressions
~~~~~~~~~~~~~~~~~
+- Fixed bug in :meth:`DataFrame.... |
pandas-dev__pandas-49124 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/frame.py:DataFrame._set_item_frame_value"
],
"edited_modules": [
"pandas/core/frame.py:DataFrame"
]
},
"file": "pandas/core/frame.py"
}
] | pandas-dev/pandas | 90b4add77859d1349530fff3c8cadeef95f36f39 | BUG: Assigning column with tuple as name from groupby fails
### Pandas version checks
- [X] I have checked that this issue has not already been reported.
- [X] I have confirmed this bug exists on the [latest version](https://pandas.pydata.org/docs/whatsnew/index.html) of pandas.
- [X] I have confirmed this bug... | diff --git a/doc/source/whatsnew/v2.0.0.rst b/doc/source/whatsnew/v2.0.0.rst
index 508d5d8bc4cc1..6511922fbf7b4 100644
--- a/doc/source/whatsnew/v2.0.0.rst
+++ b/doc/source/whatsnew/v2.0.0.rst
@@ -216,6 +216,7 @@ Interval
Indexing
^^^^^^^^
- Bug in :meth:`DataFrame.reindex` filling with wrong values when indexing co... |
pandas-dev__pandas-52174 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/tools/numeric.py:to_numeric"
],
"edited_modules": [
"pandas/core/tools/numeric.py:to_numeric"
]
},
"file": "pandas/core/tools/numeric.py"
}
] | pandas-dev/pandas | 525f1ef36d8c49ef17f102a8e45be5f054000b13 | BUG: to_numeric does not return Arrow backed data for `StringDtype("pyarrow")`
### Pandas version checks
- [X] I have checked that this issue has not already been reported.
- [X] I have confirmed this bug exists on the [latest version](https://pandas.pydata.org/docs/whatsnew/index.html) of pandas.
- [ ] I have conf... | diff --git a/pandas/_libs/lib.pyx b/pandas/_libs/lib.pyx
index 88ea61a23a426..c3bb33df34e56 100644
--- a/pandas/_libs/lib.pyx
+++ b/pandas/_libs/lib.pyx
@@ -2325,10 +2325,14 @@ def maybe_convert_numeric(
if not seen.coerce_numeric:
raise type(err)(f"{err} at position {i}")
- ... |
pandas-dev__pandas-49419 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/reshape/merge.py:_MergeOperation._validate"
],
"edited_modules": [
"pandas/core/reshape/merge.py:_MergeOperation"
]
},
"file": "pandas/core/reshape/merge.py... | pandas-dev/pandas | a215264d472e79c48433fa3a04fa492abc41e38d | BUG: Unclear error message when merging tables and passing invalid option to validate
### Pandas version checks
- [X] I have checked that this issue has not already been reported.
- [X] I have confirmed this bug exists on the [latest version](https://pandas.pydata.org/docs/whatsnew/index.html) of pandas.
- [X] I hav... | diff --git a/doc/source/whatsnew/v2.0.0.rst b/doc/source/whatsnew/v2.0.0.rst
index ac3a1ca95fbb4..4aa26d406015f 100644
--- a/doc/source/whatsnew/v2.0.0.rst
+++ b/doc/source/whatsnew/v2.0.0.rst
@@ -464,6 +464,7 @@ Reshaping
- Bug in :meth:`DataFrame.pivot` not respecting ``None`` as column name (:issue:`48293`)
- Bug ... |
pandas-dev__pandas-51418 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/io/excel/_base.py:read_excel",
"pandas/io/excel/_base.py:BaseExcelReader.parse",
"pandas/io/excel/_base.py:ExcelFile.parse"
],
"edited_modules": [
"pandas/io/e... | pandas-dev/pandas | 07667f3210a5e4c2c61ea876b32b51e321a677ed | ENH: let date_format take a mapping of columns to formats
### Feature Type
- [X] Adding new functionality to pandas
- [ ] Changing existing functionality in pandas
- [ ] Removing existing functionality in pandas
### Problem Description
follow-up to https://github.com/pandas-dev/pandas/pull/51019
### Feature Desc... | diff --git a/doc/source/user_guide/io.rst b/doc/source/user_guide/io.rst
index 043394ded42e9..dd774417fc5f9 100644
--- a/doc/source/user_guide/io.rst
+++ b/doc/source/user_guide/io.rst
@@ -294,9 +294,9 @@ date_parser : function, default ``None``
.. deprecated:: 2.0.0
Use ``date_format`` instead, or read in as ``... |
pandas-dev__pandas-57169 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/indexes/base.py:Index.sort_values"
],
"edited_modules": [
"pandas/core/indexes/base.py:Index"
]
},
"file": "pandas/core/indexes/base.py"
}
] | pandas-dev/pandas | db11e25d2b1175fdf85d963a88ff5a1d4bdb6fd8 | BUG: Stable sort on DatetimeIndex is not stable
### Pandas version checks
- [X] I have checked that this issue has not already been reported.
- [X] I have confirmed this bug exists on the [latest version](https://pandas.pydata.org/docs/whatsnew/index.html) of pandas.
- [ ] I have confirmed this bug exists on the [ma... | diff --git a/doc/source/whatsnew/v2.2.1.rst b/doc/source/whatsnew/v2.2.1.rst
index 19b7e3493f964..713e3787825fb 100644
--- a/doc/source/whatsnew/v2.2.1.rst
+++ b/doc/source/whatsnew/v2.2.1.rst
@@ -18,6 +18,7 @@ Fixed regressions
- Fixed regression in :func:`merge_ordered` raising ``TypeError`` for ``fill_method="ffill... |
pandas-dev__pandas-47851 | [
{
"changes": {
"added_entities": [
"pandas/core/window/common.py:maybe_warn_args_and_kwargs"
],
"added_modules": [
"pandas/core/window/common.py:maybe_warn_args_and_kwargs"
],
"edited_entities": null,
"edited_modules": null
},
"file": "pandas/core/wind... | pandas-dev/pandas | b0a51feaad1d201c77f38c787ebec2b6e656a2cd | DEPR: rolling, expanding, and ewm args and kwargs
See for example the [rolling.sum docs](https://pandas.pydata.org/docs/reference/api/pandas.core.window.rolling.Rolling.sum.html). These args and kwargs are not used for the computation. If any args are passed, these ops will raise. If the kwargs `axis`, `dtype`, or `out... | diff --git a/doc/source/whatsnew/v1.5.0.rst b/doc/source/whatsnew/v1.5.0.rst
index 7f07187e34c78..8ba17097adbbd 100644
--- a/doc/source/whatsnew/v1.5.0.rst
+++ b/doc/source/whatsnew/v1.5.0.rst
@@ -773,6 +773,7 @@ Other Deprecations
- Deprecated :class:`Series` and :class:`Resampler` reducers (e.g. ``min``, ``max``, ``... |
pandas-dev__pandas-57553 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/frame.py:DataFrame._constructor_from_mgr",
"pandas/core/frame.py:DataFrame._sliced_from_mgr",
"pandas/core/frame.py:DataFrame._constructor_sliced_from_mgr"
],
"ed... | pandas-dev/pandas | cfe191db8b5e556a5e5995e7aa1305534122f972 | BUG: DeprecationWarning shown for internal operations on subclassed Series and DataFrame
### Pandas version checks
- [X] I have checked that this issue has not already been reported.
- [X] I have confirmed this bug exists on the [latest version](https://pandas.pydata.org/docs/whatsnew/index.html) of pandas.
- [X] I ... | diff --git a/pandas/core/frame.py b/pandas/core/frame.py
index 8fd0cd8c66e3c..1be72c60783ec 100644
--- a/pandas/core/frame.py
+++ b/pandas/core/frame.py
@@ -651,25 +651,36 @@ def _constructor(self) -> type[DataFrame]:
return DataFrame
def _constructor_from_mgr(self, mgr, axes) -> DataFrame:
- if ... |
pandas-dev__pandas-54246 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/interchange/column.py:PandasColumn._dtype_from_pandasdtype",
"pandas/core/interchange/column.py:PandasColumn._get_data_buffer"
],
"edited_modules": [
"pandas/core... | pandas-dev/pandas | b379f99590ae076496eb4c7fab363ed62049d816 | BUG: Conversion of datetime64[ns, UTC] to Arrow C format string is not implemented
### Pandas version checks
- [X] I have checked that this issue has not already been reported.
- [X] I have confirmed this bug exists on the [latest version](https://pandas.pydata.org/docs/whatsnew/index.html) of pandas.
- [ ] I ... | diff --git a/doc/source/whatsnew/v2.1.0.rst b/doc/source/whatsnew/v2.1.0.rst
index 8cf7543ae075b..eb0d946163cde 100644
--- a/doc/source/whatsnew/v2.1.0.rst
+++ b/doc/source/whatsnew/v2.1.0.rst
@@ -149,6 +149,7 @@ Other enhancements
- Adding ``engine_kwargs`` parameter to :meth:`DataFrame.read_excel` (:issue:`52214`)
... |
pandas-dev__pandas-48178 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/indexing.py:_LocIndexer._getitem_axis"
],
"edited_modules": [
"pandas/core/indexing.py:_LocIndexer"
]
},
"file": "pandas/core/indexing.py"
}
] | pandas-dev/pandas | ae47909f030f1ff900888a64b8d12d81a763e14d | BUG: using NamedTuples with .loc works only sometimes
### Pandas version checks
- [X] I have checked that this issue has not already been reported.
- [X] I have confirmed this bug exists on the [latest version](https://pandas.pydata.org/docs/whatsnew/index.html) of pandas.
- [ ] I have confirmed this bug exists on t... | diff --git a/doc/source/whatsnew/v1.4.4.rst b/doc/source/whatsnew/v1.4.4.rst
index 2f290217bf985..1df3532345ebb 100644
--- a/doc/source/whatsnew/v1.4.4.rst
+++ b/doc/source/whatsnew/v1.4.4.rst
@@ -18,6 +18,7 @@ Fixed regressions
- Fixed regression in :func:`concat` materializing :class:`Index` during sorting even if :... |
pandas-dev__pandas-47672 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/resample.py:Resampler._wrap_result"
],
"edited_modules": [
"pandas/core/resample.py:Resampler"
]
},
"file": "pandas/core/resample.py"
}
] | pandas-dev/pandas | e6024c12f0061602b67f64adcaf8ab5cb77d5418 | BUG: groupby.resample have inconsistent behavior when calling dataframe that's empty vs have entries
### Pandas version checks
- [X] I have checked that this issue has not already been reported.
- [X] I have confirmed this bug exists on the [latest version](https://pandas.pydata.org/docs/whatsnew/index.html) of panda... | diff --git a/doc/source/whatsnew/v1.6.0.rst b/doc/source/whatsnew/v1.6.0.rst
index 098750aa3a2b2..6e435c8eaaf2f 100644
--- a/doc/source/whatsnew/v1.6.0.rst
+++ b/doc/source/whatsnew/v1.6.0.rst
@@ -244,6 +244,7 @@ Groupby/resample/rolling
- Bug in :class:`.ExponentialMovingWindow` with ``online`` not raising a ``NotImp... |
pandas-dev__pandas-47605 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/resample.py:Resampler._get_resampler_for_grouping",
"pandas/core/resample.py:_GroupByMixin.__init__",
"pandas/core/resample.py:_GroupByMixin._gotitem",
"pandas/core/r... | pandas-dev/pandas | 37e6239f618adc8913e80fa689cdb8c8ad0f2af1 | BUG: `df.groupby().resample()[[cols]]` without key columns raise KeyError
### Pandas version checks
- [X] I have checked that this issue has not already been reported.
- [X] I have confirmed this bug exists on the [latest version](https://pandas.pydata.org/docs/whatsnew/index.html) of pandas.
- [ ] I have confirmed ... | diff --git a/doc/source/whatsnew/v1.5.0.rst b/doc/source/whatsnew/v1.5.0.rst
index 0b450fab53137..5b07fc31287e5 100644
--- a/doc/source/whatsnew/v1.5.0.rst
+++ b/doc/source/whatsnew/v1.5.0.rst
@@ -996,6 +996,8 @@ Groupby/resample/rolling
- Bug in :meth:`.DataFrameGroupBy.describe` and :meth:`.SeriesGroupBy.describe` p... |
pandas-dev__pandas-50964 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/arrays/arrow/array.py:ArrowExtensionArray._reduce"
],
"edited_modules": [
"pandas/core/arrays/arrow/array.py:ArrowExtensionArray"
]
},
"file": "pandas/core/... | pandas-dev/pandas | 3f2b18aed1468d3643bf638f7859cacf3141c8f4 | ENH: Add high-performance DecimalArray type?
#### Is your feature request related to a problem?
Doing operations with decimal types is currently very slow, since pandas stores them as python Decimal objects. I think it would be nice to have a high-performance, vectorized DecimalArray ExtensionArray type. Would you b... | diff --git a/pandas/core/arrays/arrow/array.py b/pandas/core/arrays/arrow/array.py
index ab4f87d4cf374..5c09a7a28856f 100644
--- a/pandas/core/arrays/arrow/array.py
+++ b/pandas/core/arrays/arrow/array.py
@@ -1098,6 +1098,7 @@ def _reduce(self, name: str, *, skipna: bool = True, **kwargs):
pa.types.is_inte... |
pandas-dev__pandas-56038 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/dtypes/cast.py:infer_dtype_from_scalar"
],
"edited_modules": [
"pandas/core/dtypes/cast.py:infer_dtype_from_scalar"
]
},
"file": "pandas/core/dtypes/cast.py... | pandas-dev/pandas | 32ebcfc8185511d82080af9a095b12d3d176b0d4 | DEPR: is_decimal, is_interval
These are aliases for isinstance checks, don't seem necessary.
| diff --git a/doc/source/whatsnew/v2.2.0.rst b/doc/source/whatsnew/v2.2.0.rst
index 98926712ac7ce..7c1d0fb81a530 100644
--- a/doc/source/whatsnew/v2.2.0.rst
+++ b/doc/source/whatsnew/v2.2.0.rst
@@ -262,6 +262,7 @@ For example:
Other Deprecations
^^^^^^^^^^^^^^^^^^
- Changed :meth:`Timedelta.resolution_string` to retu... |
pandas-dev__pandas-58057 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/computation/ops.py:Term._resolve_name"
],
"edited_modules": [
"pandas/core/computation/ops.py:Term"
]
},
"file": "pandas/core/computation/ops.py"
}
] | pandas-dev/pandas | 0bfce5f6e2ea40da88937a8a230d1848269f19a1 | BUG: Numpy not directly usable in DataFrame.eval and DataFrame.query
### Pandas version checks
- [X] I have checked that this issue has not already been reported.
- [X] I have confirmed this bug exists on the [latest version](https://pandas.pydata.org/docs/whatsnew/index.html) of pandas.
- [X] I have confirmed this ... | diff --git a/doc/source/whatsnew/v3.0.0.rst b/doc/source/whatsnew/v3.0.0.rst
index 2ebd6fb62b424..8d0adccfd480d 100644
--- a/doc/source/whatsnew/v3.0.0.rst
+++ b/doc/source/whatsnew/v3.0.0.rst
@@ -325,6 +325,7 @@ Bug fixes
- Fixed bug in :class:`SparseDtype` for equal comparison with na fill value. (:issue:`54770`)
-... |
pandas-dev__pandas-50444 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/groupby/groupby.py:GroupBy._nth"
],
"edited_modules": [
"pandas/core/groupby/groupby.py:GroupBy"
]
},
"file": "pandas/core/groupby/groupby.py"
}
] | pandas-dev/pandas | 0971f55d27680245865eecb4f5d6270fdc45b130 | GroupBy nth with Categorical, NA Data and dropna
The `nth` method of GroupBy objects can accept a `dropna` keyword, but it doesn't handle Categorical data appropriately. For instance:
```python-traceback
In [9]: cat = pd.Categorical(['a', np.nan, np.nan], categories=['a', 'b'])
...: ser = pd.Series([1, 2, 3])
... | diff --git a/doc/source/whatsnew/v2.0.0.rst b/doc/source/whatsnew/v2.0.0.rst
index 12b0d90e68ab9..1c7e9f09fcf21 100644
--- a/doc/source/whatsnew/v2.0.0.rst
+++ b/doc/source/whatsnew/v2.0.0.rst
@@ -924,6 +924,7 @@ Groupby/resample/rolling
- Bug in :meth:`.SeriesGroupBy.describe` with ``as_index=False`` would have the i... |
pandas-dev__pandas-50863 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/apply.py:Apply.agg_list_like"
],
"edited_modules": [
"pandas/core/apply.py:Apply"
]
},
"file": "pandas/core/apply.py"
},
{
"changes": {
"added... | pandas-dev/pandas | 4c8b2eae0f23c194d7f1d5b820b70576832c3740 | BUG: agg ignores args/kwargs when giving a list-like argument
I think the expected value of `(a, b)` in the function below is `(5, 6)`.
```
def foo(x, a=1, b=2):
print(a, b)
return x
df = pd.DataFrame({'x': [1, 2, 3]})
# 0 is for the axis argument; 5 is the first (and only) in args
print(df.agg([foo]... | diff --git a/doc/source/whatsnew/v2.0.0.rst b/doc/source/whatsnew/v2.0.0.rst
index b10f201e79318..e305df7d525fa 100644
--- a/doc/source/whatsnew/v2.0.0.rst
+++ b/doc/source/whatsnew/v2.0.0.rst
@@ -1304,6 +1304,7 @@ Groupby/resample/rolling
- Bug in :meth:`.DataFrameGroupBy.transform` and :meth:`.SeriesGroupBy.transfor... |
pandas-dev__pandas-54341 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/frame.py:DataFrame._reduce"
],
"edited_modules": [
"pandas/core/frame.py:DataFrame"
]
},
"file": "pandas/core/frame.py"
},
{
"changes": {
"add... | pandas-dev/pandas | 0582e35aa064ecd3a054853ed2fc5d4ef9fcc847 | PERF: `DataFrame.all(axis="columns")` orders of magnitude slower for `bool[pyarrow]`
### Pandas version checks
- [X] I have checked that this issue has not already been reported.
- [X] I have confirmed this issue exists on the [latest version](https://pandas.pydata.org/docs/whatsnew/index.html) of pandas.
- [X... | diff --git a/doc/source/whatsnew/v2.1.0.rst b/doc/source/whatsnew/v2.1.0.rst
index 998efdedb1b57..1c6269d50295d 100644
--- a/doc/source/whatsnew/v2.1.0.rst
+++ b/doc/source/whatsnew/v2.1.0.rst
@@ -614,6 +614,7 @@ Performance improvements
- :class:`Period`'s default formatter (`period_format`) is now significantly (~tw... |
pandas-dev__pandas-50173 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/frame.py:DataFrame._setitem_frame"
],
"edited_modules": [
"pandas/core/frame.py:DataFrame"
]
},
"file": "pandas/core/frame.py"
}
] | pandas-dev/pandas | 70eef55e438823697515e834ee4ac350bdb0aaa7 | BUG: trying to assign to a dataframe with a boolean index fails with boolean dtype
### Pandas version checks
- [X] I have checked that this issue has not already been reported.
- [X] I have confirmed this bug exists on the [latest version](https://pandas.pydata.org/docs/whatsnew/index.html) of pandas.
- [X] I have c... | diff --git a/doc/source/whatsnew/v2.0.0.rst b/doc/source/whatsnew/v2.0.0.rst
index cbad169fe4d56..6a765094c551f 100644
--- a/doc/source/whatsnew/v2.0.0.rst
+++ b/doc/source/whatsnew/v2.0.0.rst
@@ -831,6 +831,7 @@ Interval
Indexing
^^^^^^^^
+- Bug in :meth:`DataFrame.__setitem__` raising when indexer is a :class:`Da... |
pandas-dev__pandas-53122 | [
{
"changes": {
"added_entities": [
"pandas/core/arrays/categorical.py:Categorical._validate_codes_for_dtype"
],
"added_modules": null,
"edited_entities": [
"pandas/core/arrays/categorical.py:Categorical.from_codes",
"pandas/core/arrays/categorical.py:Categorical.m... | pandas-dev/pandas | 607316c9b6f5839389161441da8cff2eff5eccd0 | ENH/PERF: add `validate` parameter to 'Categorical.from_codes' get avoid validation when not needed
### Pandas version checks
- [X] I have checked that this issue has not already been reported.
- [X] I have confirmed this issue exists on the [latest version](https://pandas.pydata.org/docs/whatsnew/index.html) of ... | diff --git a/doc/source/whatsnew/v2.1.0.rst b/doc/source/whatsnew/v2.1.0.rst
index 36b2aa3c28da5..a6302ca09f90a 100644
--- a/doc/source/whatsnew/v2.1.0.rst
+++ b/doc/source/whatsnew/v2.1.0.rst
@@ -95,6 +95,7 @@ Other enhancements
- Improved error message when creating a DataFrame with empty data (0 rows), no index and... |
pandas-dev__pandas-48234 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/internals/blocks.py:Block.replace"
],
"edited_modules": [
"pandas/core/internals/blocks.py:Block"
]
},
"file": "pandas/core/internals/blocks.py"
}
] | pandas-dev/pandas | 3370c8179de16b3f0556891a1ff06131e186dfd1 | BUG: RecursionError when attempting to replace `np.nan` values under main branch
### Pandas version checks
- [X] I have checked that this issue has not already been reported.
- [X] I have confirmed this bug exists on the [latest version](https://pandas.pydata.org/docs/whatsnew/index.html) of pandas.
- [X] I have con... | diff --git a/doc/source/whatsnew/v1.5.2.rst b/doc/source/whatsnew/v1.5.2.rst
index aaf00804262bb..4f6274b9084da 100644
--- a/doc/source/whatsnew/v1.5.2.rst
+++ b/doc/source/whatsnew/v1.5.2.rst
@@ -13,7 +13,7 @@ including other versions of pandas.
Fixed regressions
~~~~~~~~~~~~~~~~~
--
+- Fixed regression in :meth:`... |
pandas-dev__pandas-53213 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/reshape/merge.py:_MergeOperation._maybe_coerce_merge_keys",
"pandas/core/reshape/merge.py:_factorize_keys"
],
"edited_modules": [
"pandas/core/reshape/merge.py:_M... | pandas-dev/pandas | b033ca94e7ae6e1320c9d65a8163bd0a6049f40a | BUG: DataFrame.merge on Timestamp column broken if when timestamps are timezone-aware and have different units
### Pandas version checks
- [X] I have checked that this issue has not already been reported.
- [X] I have confirmed this bug exists on the [latest version](https://pandas.pydata.org/docs/whatsnew/index.html... | diff --git a/doc/source/whatsnew/v2.0.2.rst b/doc/source/whatsnew/v2.0.2.rst
index c8159be4d7b6b..92847bef31778 100644
--- a/doc/source/whatsnew/v2.0.2.rst
+++ b/doc/source/whatsnew/v2.0.2.rst
@@ -28,6 +28,7 @@ Bug fixes
- Bug in :func:`api.interchange.from_dataframe` was raising ``IndexError`` on empty categorical da... |
pandas-dev__pandas-50672 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/dtypes/common.py:is_integer_dtype",
"pandas/core/dtypes/common.py:is_signed_integer_dtype",
"pandas/core/dtypes/common.py:is_unsigned_integer_dtype",
"pandas/core/dty... | pandas-dev/pandas | 9d8e7048affb31aa33bfe6f09b626b3045ee0d33 | BUG: `is_integer_dtype` returns `False` for integer `ArrowDtype`s
### Pandas version checks
- [X] I have checked that this issue has not already been reported.
- [X] I have confirmed this bug exists on the [latest version](https://pandas.pydata.org/docs/whatsnew/index.html) of pandas.
- [ ] I have confirmed this bug... | diff --git a/doc/source/whatsnew/v2.0.0.rst b/doc/source/whatsnew/v2.0.0.rst
index 3ac004ef335ac..530d5dd00d1b2 100644
--- a/doc/source/whatsnew/v2.0.0.rst
+++ b/doc/source/whatsnew/v2.0.0.rst
@@ -1049,6 +1049,7 @@ ExtensionArray
- Bug when concatenating an empty DataFrame with an ExtensionDtype to another DataFrame w... |
pandas-dev__pandas-55352 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/indexes/base.py:Index._get_fill_indexer"
],
"edited_modules": [
"pandas/core/indexes/base.py:Index"
]
},
"file": "pandas/core/indexes/base.py"
}
] | pandas-dev/pandas | 0db27c0df815718bb4cb31ae69dddfc68828bc69 | BUG: Incorrect result when `method!=None` for `MultiIndex.get_indexer`
### Pandas version checks
- [X] I have checked that this issue has not already been reported.
- [X] I have confirmed this bug exists on the [latest version](https://pandas.pydata.org/docs/whatsnew/index.html) of pandas.
- [ ] I have confirmed thi... | diff --git a/doc/source/whatsnew/v2.2.0.rst b/doc/source/whatsnew/v2.2.0.rst
index 9dc095e6de6ff..1bf18bfba4b84 100644
--- a/doc/source/whatsnew/v2.2.0.rst
+++ b/doc/source/whatsnew/v2.2.0.rst
@@ -310,7 +310,7 @@ Missing
MultiIndex
^^^^^^^^^^
--
+- Bug in :meth:`MultiIndex.get_indexer` not raising ``ValueError`` wh... |
pandas-dev__pandas-53654 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/indexes/base.py:_unpack_nested_dtype"
],
"edited_modules": [
"pandas/core/indexes/base.py:_unpack_nested_dtype"
]
},
"file": "pandas/core/indexes/base.py"
... | pandas-dev/pandas | f0d3301a4193bb8f567edd7d1e10ad8ae3a16193 | BUG: Cannot construct DataFrame with dict as data and numeric dictionary ArrowDtype series as column
### Pandas version checks
- [X] I have checked that this issue has not already been reported.
- [X] I have confirmed this bug exists on the [latest version](https://pandas.pydata.org/docs/whatsnew/index.html) of panda... | diff --git a/doc/source/whatsnew/v2.0.3.rst b/doc/source/whatsnew/v2.0.3.rst
index 1d38072c35d6c..3e12af946e661 100644
--- a/doc/source/whatsnew/v2.0.3.rst
+++ b/doc/source/whatsnew/v2.0.3.rst
@@ -28,6 +28,7 @@ Bug fixes
- Bug in :func:`read_csv` when defining ``dtype`` with ``bool[pyarrow]`` for the ``"c"`` and ``"py... |
pandas-dev__pandas-49161 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/indexing.py:_iLocIndexer._setitem_with_indexer_2d_value"
],
"edited_modules": [
"pandas/core/indexing.py:_iLocIndexer"
]
},
"file": "pandas/core/indexing.py... | pandas-dev/pandas | 5a4339f686225ed5eadc5c4b7d2508c0765ef577 | BUG: wrong values produced when setting using .loc
### Pandas version checks
- [X] I have checked that this issue has not already been reported.
- [X] I have confirmed this bug exists on the [latest version](https://pandas.pydata.org/docs/whatsnew/index.html) of pandas.
- [X] I have confirmed this bug exists o... | diff --git a/doc/source/whatsnew/v2.0.0.rst b/doc/source/whatsnew/v2.0.0.rst
index 3c600e8e747ad..a6c6afb9734c9 100644
--- a/doc/source/whatsnew/v2.0.0.rst
+++ b/doc/source/whatsnew/v2.0.0.rst
@@ -220,6 +220,7 @@ Interval
Indexing
^^^^^^^^
- Bug in :meth:`DataFrame.reindex` filling with wrong values when indexing co... |
pandas-dev__pandas-57488 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/generic.py:NDFrame._get_cleaned_column_resolvers"
],
"edited_modules": [
"pandas/core/generic.py:NDFrame"
]
},
"file": "pandas/core/generic.py"
}
] | pandas-dev/pandas | abc3efb63f02814047a1b291ac2b1ee3cd70252f | BUG: Regression from v2.1.4 to v2.2.0 when querying pd.NaT/timestamp comparison
### Pandas version checks
- [X] I have checked that this issue has not already been reported.
- [X] I have confirmed this bug exists on the [latest version](https://pandas.pydata.org/docs/whatsnew/index.html) of pandas.
- [ ] I have con... | diff --git a/doc/source/whatsnew/v2.2.1.rst b/doc/source/whatsnew/v2.2.1.rst
index 54b0d5f93dfa3..6bf2f21c37d38 100644
--- a/doc/source/whatsnew/v2.2.1.rst
+++ b/doc/source/whatsnew/v2.2.1.rst
@@ -27,6 +27,7 @@ Fixed regressions
- Fixed regression in :meth:`DataFrame.loc` which was unnecessarily throwing "incompatible... |
pandas-dev__pandas-48697 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/indexing.py:_iLocIndexer._setitem_with_indexer_missing"
],
"edited_modules": [
"pandas/core/indexing.py:_iLocIndexer"
]
},
"file": "pandas/core/indexing.py"... | pandas-dev/pandas | cda0f6bee2a6520729247f92eef9f722ad2487ec | BUG: None value converted to NaN in Series
### Pandas version checks
- [X] I have checked that this issue has not already been reported.
- [X] I have confirmed this bug exists on the [latest version](https://pandas.pydata.org/docs/whatsnew/index.html) of pandas.
- [X] I have confirmed this bug exists on the main bra... | diff --git a/doc/source/whatsnew/v1.5.1.rst b/doc/source/whatsnew/v1.5.1.rst
index 3f4265245bcb6..c998b2ce99628 100644
--- a/doc/source/whatsnew/v1.5.1.rst
+++ b/doc/source/whatsnew/v1.5.1.rst
@@ -14,6 +14,7 @@ including other versions of pandas.
Fixed regressions
~~~~~~~~~~~~~~~~~
+- Fixed Regression in :meth:`Ser... |
pandas-dev__pandas-48774 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/io/parsers/c_parser_wrapper.py:CParserWrapper.read"
],
"edited_modules": [
"pandas/io/parsers/c_parser_wrapper.py:CParserWrapper"
]
},
"file": "pandas/io/parsers... | pandas-dev/pandas | b3552c54be2d49d52e6c0ae90db23ccb13bbfe0d | IndexError raised on invalid csv file
#### Code Sample, a copy-pastable example if possible
```python
$ python
Python 3.5.2 (default, Nov 17 2016, 17:05:23)
[GCC 5.4.0 20160609] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import pandas
>>> pandas.__version__
'0.19.2'
... | diff --git a/doc/source/whatsnew/v1.6.0.rst b/doc/source/whatsnew/v1.6.0.rst
index d726f69286469..79d498c4d1669 100644
--- a/doc/source/whatsnew/v1.6.0.rst
+++ b/doc/source/whatsnew/v1.6.0.rst
@@ -115,7 +115,7 @@ See :ref:`install.dependencies` and :ref:`install.optional_dependencies` for mor
Other API changes
^^^^... |
pandas-dev__pandas-52036 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/io/parquet.py:BaseImpl.validate_dataframe"
],
"edited_modules": [
"pandas/io/parquet.py:BaseImpl"
]
},
"file": "pandas/io/parquet.py"
}
] | pandas-dev/pandas | 23c3dc2c379eb325fd4f33be78338730d3f35731 | BUG: Unable to write an empty dataframe to parquet
### Pandas version checks
- [X] I have checked that this issue has not already been reported.
- [X] I have confirmed this bug exists on the [latest version](https://pandas.pydata.org/docs/whatsnew/index.html) of pandas.
- [X] I have confirmed this bug exists on the ... | diff --git a/doc/source/whatsnew/v2.0.0.rst b/doc/source/whatsnew/v2.0.0.rst
index 55185afc0a098..74319b0444659 100644
--- a/doc/source/whatsnew/v2.0.0.rst
+++ b/doc/source/whatsnew/v2.0.0.rst
@@ -1295,6 +1295,7 @@ I/O
- Bug in :func:`read_csv` when ``engine="pyarrow"`` where ``encoding`` parameter was not handled cor... |
pandas-dev__pandas-49011 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/base.py:IndexOpsMixin._map_values"
],
"edited_modules": [
"pandas/core/base.py:IndexOpsMixin"
]
},
"file": "pandas/core/base.py"
}
] | pandas-dev/pandas | e3d0126e8af9f0a23dd6609a23817f858825e089 | BUG: differences in Series.map with defaultdict with different dtypes
### Pandas version checks
- [X] I have checked that this issue has not already been reported.
- [X] I have confirmed this bug exists on the [latest version](https://pandas.pydata.org/docs/whatsnew/index.html) of pandas.
- [X] I have confirmed this... | diff --git a/doc/source/whatsnew/v2.0.0.rst b/doc/source/whatsnew/v2.0.0.rst
index 9d1e0c7485092..90fac220396c8 100644
--- a/doc/source/whatsnew/v2.0.0.rst
+++ b/doc/source/whatsnew/v2.0.0.rst
@@ -222,7 +222,7 @@ Indexing
Missing
^^^^^^^
- Bug in :meth:`Index.equals` raising ``TypeError`` when :class:`Index` consist... |
pandas-dev__pandas-50332 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/io/json/_table_schema.py:convert_json_field_to_pandas_type"
],
"edited_modules": [
"pandas/io/json/_table_schema.py:convert_json_field_to_pandas_type"
]
},
"file... | pandas-dev/pandas | 3da778cb04a2f62461f103c1669ff02f430f9171 | BUG: missing values encoded in pandas.Int64Dtype not supported by json table scheme
- [x] I have checked that this issue has not already been reported.
- [x] I have confirmed this bug exists on the latest version of pandas.
- [ ] (optional) I have confirmed this bug exists on the master branch of pandas.
---
... | diff --git a/doc/source/whatsnew/v2.0.0.rst b/doc/source/whatsnew/v2.0.0.rst
index bc5d66e8e7955..f75242d32df1a 100644
--- a/doc/source/whatsnew/v2.0.0.rst
+++ b/doc/source/whatsnew/v2.0.0.rst
@@ -876,6 +876,7 @@ I/O
- Bug when a pickling a subset PyArrow-backed data that would serialize the entire data instead of the... |
pandas-dev__pandas-55768 | [
{
"changes": {
"added_entities": [
"pandas/core/arrays/datetimes.py:_sequence_to_dt64"
],
"added_modules": [
"pandas/core/arrays/datetimes.py:_sequence_to_dt64"
],
"edited_entities": [
"pandas/core/arrays/datetimes.py:DatetimeArray._from_sequence_not_strict"... | pandas-dev/pandas | 2d2d67db48413fde356bce5c8d376d5b9dd5d0c2 | BUG: Prevent OutOfBoundsDatetime error for constructing tz-aware series from list
- [x] closes #54442
- [x] [Tests added and passed](https://pandas.pydata.org/pandas-docs/dev/development/contributing_codebase.html#writing-tests) if fixing a bug or adding a new feature
- [x] All [code checks passed](https://pandas.pyd... | diff --git a/doc/source/whatsnew/v2.2.0.rst b/doc/source/whatsnew/v2.2.0.rst
index d9909b0dbfad8..99b6310a80f83 100644
--- a/doc/source/whatsnew/v2.2.0.rst
+++ b/doc/source/whatsnew/v2.2.0.rst
@@ -330,6 +330,7 @@ Datetimelike
- Bug in addition or subtraction of :class:`BusinessDay` offset with ``offset`` attribute to ... |
pandas-dev__pandas-53893 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/reshape/merge.py:_MergeOperation._get_join_info"
],
"edited_modules": [
"pandas/core/reshape/merge.py:_MergeOperation"
]
},
"file": "pandas/core/reshape/mer... | pandas-dev/pandas | 64085dd41ad190e154b0fe12c00f00fff27bbc86 | BUG: join resets index even when doing left join on empty dataframes
### Pandas version checks
- [X] I have checked that this issue has not already been reported.
- [X] I have confirmed this bug exists on the [latest version](https://pandas.pydata.org/docs/whatsnew/index.html) of pandas.
- [X] I have confirmed this ... | diff --git a/doc/source/whatsnew/v2.1.0.rst b/doc/source/whatsnew/v2.1.0.rst
index 198a7155e1a1e..d4f25e159bdfb 100644
--- a/doc/source/whatsnew/v2.1.0.rst
+++ b/doc/source/whatsnew/v2.1.0.rst
@@ -512,6 +512,7 @@ Reshaping
- Bug in :meth:`DataFrame.stack` sorting index lexicographically in rare cases (:issue:`53824`)
... |
pandas-dev__pandas-53060 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/frame.py:DataFrame._append"
],
"edited_modules": [
"pandas/core/frame.py:DataFrame"
]
},
"file": "pandas/core/frame.py"
}
] | pandas-dev/pandas | 388817934ea97d170c0ab7d12ff2e16bbcd44320 | BUG: Pandas 2.0 vs. 1.5.3 behavior change when inserting row of MultiIndex data
### Pandas version checks
- [X] I have checked that this issue has not already been reported.
- [X] I have confirmed this bug exists on the [latest version](https://pandas.pydata.org/docs/whatsnew/index.html) of pandas.
- [ ] I have conf... | diff --git a/doc/source/whatsnew/v2.0.2.rst b/doc/source/whatsnew/v2.0.2.rst
index b6c6df8424ef1..5c3187cda15ae 100644
--- a/doc/source/whatsnew/v2.0.2.rst
+++ b/doc/source/whatsnew/v2.0.2.rst
@@ -13,6 +13,7 @@ including other versions of pandas.
Fixed regressions
~~~~~~~~~~~~~~~~~
+- Fixed regression in :meth:`Dat... |
pandas-dev__pandas-57225 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/window/ewm.py:ExponentialMovingWindow.sum",
"pandas/core/window/ewm.py:ExponentialMovingWindow.std",
"pandas/core/window/ewm.py:ExponentialMovingWindow.var",
"pandas/... | pandas-dev/pandas | 8d1dd0783f709b4a32bdccdb2dba150a3b30b8cb | BUG: ewm.sum() gives incorrect values when used with halflife parameter
### Pandas version checks
- [X] I have checked that this issue has not already been reported.
- [X] I have confirmed this bug exists on the [latest version](https://pandas.pydata.org/docs/whatsnew/index.html) of pandas.
- [ ] I have confirmed th... | diff --git a/doc/source/whatsnew/v3.0.0.rst b/doc/source/whatsnew/v3.0.0.rst
index f9117253b61c1..7c74a2698093d 100644
--- a/doc/source/whatsnew/v3.0.0.rst
+++ b/doc/source/whatsnew/v3.0.0.rst
@@ -205,7 +205,7 @@ Plotting
Groupby/resample/rolling
^^^^^^^^^^^^^^^^^^^^^^^^
- Bug in :meth:`.DataFrameGroupBy.quantile` w... |
pandas-dev__pandas-49658 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/indexes/base.py:Index.astype"
],
"edited_modules": [
"pandas/core/indexes/base.py:Index"
]
},
"file": "pandas/core/indexes/base.py"
}
] | pandas-dev/pandas | 783a68e70530c6150acaa0dd396f472ba12733a6 | BUG: series.astype(str) vs Index.astype(str) inconsistency
```python
ser = pd.Series([b'foo'], dtype=object)
idx = pd.Index(ser)
In [3]: ser.astype(str)[0]
Out[3]: "b'foo'"
In [4]: idx.astype(str)[0]
Out[4]: 'foo'
```
Series goes through astype_nansafe and from there through ensure_string_array. Index ... | diff --git a/doc/source/whatsnew/v2.0.0.rst b/doc/source/whatsnew/v2.0.0.rst
index 43a34c8e18b2d..656f6f13b4e82 100644
--- a/doc/source/whatsnew/v2.0.0.rst
+++ b/doc/source/whatsnew/v2.0.0.rst
@@ -773,6 +773,7 @@ Other API changes
- :func:`read_stata` with parameter ``index_col`` set to ``None`` (the default) will now... |
pandas-dev__pandas-47747 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/io/json/_table_schema.py:convert_json_field_to_pandas_type"
],
"edited_modules": [
"pandas/io/json/_table_schema.py:convert_json_field_to_pandas_type"
]
},
"file... | pandas-dev/pandas | efd15b7191c0fea41eb5fc10a8667dd33296d508 | BUG: PeriodIndex does not survive JSON serialization roundtrip
###
- [X] I have checked that this issue has not already been reported.
- [X] I have confirmed this bug exists on the [latest version](https://pandas.pydata.org/docs/whatsnew/index.html) of pandas.
- [x] I have confirmed this bug exists on the mas... | diff --git a/doc/source/whatsnew/v1.5.0.rst b/doc/source/whatsnew/v1.5.0.rst
index 82090c93a965e..252bea3ba774a 100644
--- a/doc/source/whatsnew/v1.5.0.rst
+++ b/doc/source/whatsnew/v1.5.0.rst
@@ -956,6 +956,7 @@ I/O
- Bug in :func:`read_sas` that scrambled column names (:issue:`31243`)
- Bug in :func:`read_sas` with... |
pandas-dev__pandas-53189 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/series.py:Series._set_name",
"pandas/core/series.py:Series.rename"
],
"edited_modules": [
"pandas/core/series.py:Series"
]
},
"file": "pandas/core/s... | pandas-dev/pandas | 45eb702c2a38216231ba7c02214e7659aa0eb5ef | BUG: Series.rename(scalar, copy=False) still copies data
### Pandas version checks
- [X] I have checked that this issue has not already been reported.
- [X] I have confirmed this bug exists on the [latest version](https://pandas.pydata.org/docs/whatsnew/index.html) of pandas.
- [ ] I have confirmed this bug exists o... | diff --git a/doc/source/whatsnew/v2.0.2.rst b/doc/source/whatsnew/v2.0.2.rst
index 0d6647dc38b3c..8ef733f825d00 100644
--- a/doc/source/whatsnew/v2.0.2.rst
+++ b/doc/source/whatsnew/v2.0.2.rst
@@ -31,6 +31,7 @@ Bug fixes
- Bug in :meth:`DataFrame.__getitem__` not preserving dtypes for :class:`MultiIndex` partial keys ... |
pandas-dev__pandas-49652 | [
{
"changes": {
"added_entities": [
"pandas/core/algorithms.py:nunique_ints"
],
"added_modules": [
"pandas/core/algorithms.py:nunique_ints"
],
"edited_entities": null,
"edited_modules": null
},
"file": "pandas/core/algorithms.py"
},
{
"changes":... | pandas-dev/pandas | 7f47d336b0a6689a9d333e332be7b9663a25f29f | BUG: Get wrong result when groupby category column with dropna=False
I have confirmed this bug exists on the master branch of pandas.
```python
# Your code here
ser = pd.Series([1., 1., 1., 1.])
cat = pd.Categorical(['a', 'b', 'c', np.nan])
print(ser.groupby(cat, dropna=False).sum())
```
```
# output:
a ... | diff --git a/doc/source/whatsnew/v2.0.0.rst b/doc/source/whatsnew/v2.0.0.rst
index ee08a55c42e4a..8bcc863a0df6c 100644
--- a/doc/source/whatsnew/v2.0.0.rst
+++ b/doc/source/whatsnew/v2.0.0.rst
@@ -751,6 +751,7 @@ Groupby/resample/rolling
- Bug in :meth:`.DataFrameGroupBy.apply` and :class:`SeriesGroupBy.apply` with ``... |
pandas-dev__pandas-53520 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/generic.py:NDFrame.pct_change"
],
"edited_modules": [
"pandas/core/generic.py:NDFrame"
]
},
"file": "pandas/core/generic.py"
},
{
"changes": {
... | pandas-dev/pandas | d2cd5e21f85ac4c5e47ce2af703fa76feaf0478c | DEPR: pct_change method/limit keyword
We should deprecate these and have users do obj.fillna(...).pct_change() instead.
| diff --git a/doc/source/whatsnew/v2.1.0.rst b/doc/source/whatsnew/v2.1.0.rst
index 762f41b4049c2..baacc8c421414 100644
--- a/doc/source/whatsnew/v2.1.0.rst
+++ b/doc/source/whatsnew/v2.1.0.rst
@@ -227,6 +227,7 @@ Other API changes
Deprecations
~~~~~~~~~~~~
- Deprecated 'broadcast_axis' keyword in :meth:`Series.align... |
pandas-dev__pandas-53557 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/tools/timedeltas.py:to_timedelta"
],
"edited_modules": [
"pandas/core/tools/timedeltas.py:to_timedelta"
]
},
"file": "pandas/core/tools/timedeltas.py"
}
] | pandas-dev/pandas | bc4f1493b214604458fbc3bfa6a957803f139f0a | BUG: Either incorrect unit validation for 'T' in to_timedelta() or incorrect documentation
### Pandas version checks
- [X] I have checked that this issue has not already been reported.
- [X] I have confirmed this bug exists on the [latest version](https://pandas.pydata.org/docs/whatsnew/index.html) of pandas.
- [X] ... | diff --git a/doc/source/whatsnew/v2.1.0.rst b/doc/source/whatsnew/v2.1.0.rst
index d9cdc8beaebea..5fd6953d0443a 100644
--- a/doc/source/whatsnew/v2.1.0.rst
+++ b/doc/source/whatsnew/v2.1.0.rst
@@ -295,10 +295,10 @@ Deprecations
- Deprecated option "mode.use_inf_as_na", convert inf entries to ``NaN`` before instead (:i... |
pandas-dev__pandas-53877 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/frame.py:DataFrame.dropna",
"pandas/core/frame.py:DataFrame.groupby",
"pandas/core/frame.py:DataFrame.pivot"
],
"edited_modules": [
"pandas/core/frame.py:... | pandas-dev/pandas | fbf647def1538bda5a95bb5aec1d81885c804e72 | CLN: use lib.no_default instead of lib.NoDefault in reshape.pivot
In core.reshape.pivot we have a couple places where a default kwarg is `lib.NoDefault` where the idiomatic usage would be `lib.no_default`. I assumed this was just a typo, but when I tried changing it, some tests broke. Need to track down what's going ... | diff --git a/pandas/core/frame.py b/pandas/core/frame.py
index c7e8f74ff7849..e877680b3bb8d 100644
--- a/pandas/core/frame.py
+++ b/pandas/core/frame.py
@@ -47,11 +47,7 @@
properties,
)
from pandas._libs.hashtable import duplicated
-from pandas._libs.lib import (
- NoDefault,
- is_range_indexer,
- no_de... |
pandas-dev__pandas-49262 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": null,
"edited_modules": null
},
"file": "pandas/core/groupby/base.py"
},
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/c... | pandas-dev/pandas | 72e923ed4d3bfd41b64dc763269f48fdf6727227 | groupby.nth() labelling conventions changed from 0.17 -> 0.18
In pandas 0.17.1, grouping a DatetimeIndex with monthly frequency produced labels keyed at the start of the month, and `nth()` produces a label keyed by the selected row. In 0.18, we unconditionally return groups labelled by the end of the month.
#### Old P... | diff --git a/doc/source/user_guide/groupby.rst b/doc/source/user_guide/groupby.rst
index dae42dd4f1118..d8a36b1711b6e 100644
--- a/doc/source/user_guide/groupby.rst
+++ b/doc/source/user_guide/groupby.rst
@@ -1354,9 +1354,14 @@ This shows the first or last n rows from each group.
Taking the nth row of each group
~~~~... |
pandas-dev__pandas-50506 | [
{
"changes": {
"added_entities": [
"asv_bench/benchmarks/series_methods.py:ToNumpy.setup",
"asv_bench/benchmarks/series_methods.py:ToNumpy.time_to_numpy",
"asv_bench/benchmarks/series_methods.py:ToNumpy.time_to_numpy_double_copy",
"asv_bench/benchmarks/series_methods.py:ToN... | pandas-dev/pandas | d859ecc1b0e386a66a5e0650609a9e3154fa474c | Avoid double copy in Series/Index.to_numpy
https://github.com/pandas-dev/pandas/pull/24341 added the `copy` parameter to `to_numpy()`.
In some cases, that will copy data twice, when the `asarray(self._values, dtype=dtype)` makes a copy, Series / Index doesn't know about it.
To avoid that, we could add a method to... | diff --git a/asv_bench/benchmarks/series_methods.py b/asv_bench/benchmarks/series_methods.py
index dc86352082cca..a0dd52e9f17e4 100644
--- a/asv_bench/benchmarks/series_methods.py
+++ b/asv_bench/benchmarks/series_methods.py
@@ -382,4 +382,23 @@ def time_iter(self, dtype):
pass
+class ToNumpy:
+ def... |
pandas-dev__pandas-56194 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/io/pytables.py:DataIndexableCol.validate_names"
],
"edited_modules": [
"pandas/io/pytables.py:DataIndexableCol"
]
},
"file": "pandas/io/pytables.py"
}
] | pandas-dev/pandas | 762b61dfb3028bc3b9c96c664243ba188b0ed923 | BUG: pd.DataFrame.to_hdf does not support multiindex frames with `string[pyarrow_numpy]`
### Pandas version checks
- [X] I have checked that this issue has not already been reported.
- [X] I have confirmed this bug exists on the [latest version](https://pandas.pydata.org/docs/whatsnew/index.html) of pandas.
- [X] I ... | diff --git a/doc/source/whatsnew/v2.1.4.rst b/doc/source/whatsnew/v2.1.4.rst
index 77ce303dc1bfe..0cbf211305d12 100644
--- a/doc/source/whatsnew/v2.1.4.rst
+++ b/doc/source/whatsnew/v2.1.4.rst
@@ -24,6 +24,7 @@ Bug fixes
- Bug in :class:`Series` constructor raising DeprecationWarning when ``index`` is a list of :class... |
pandas-dev__pandas-57665 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/interchange/column.py:PandasColumn.describe_null",
"pandas/core/interchange/column.py:PandasColumn._get_data_buffer",
"pandas/core/interchange/column.py:PandasColumn._get_val... | pandas-dev/pandas | 7977a37187238e5e646079903af71f78e7a4f636 | BUG: interchange protocol with nullable datatypes a non-null validity provides nonsense results
### Pandas version checks
- [X] I have checked that this issue has not already been reported.
- [X] I have confirmed this bug exists on the [latest version](https://pandas.pydata.org/docs/whatsnew/index.html) of pandas... | diff --git a/doc/source/whatsnew/v2.2.2.rst b/doc/source/whatsnew/v2.2.2.rst
index 058f7aebcd538..96f210ce6b7b9 100644
--- a/doc/source/whatsnew/v2.2.2.rst
+++ b/doc/source/whatsnew/v2.2.2.rst
@@ -13,6 +13,7 @@ including other versions of pandas.
Fixed regressions
~~~~~~~~~~~~~~~~~
+- :meth:`DataFrame.__dataframe__... |
pandas-dev__pandas-53977 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/internals/blocks.py:Block.convert"
],
"edited_modules": [
"pandas/core/internals/blocks.py:Block"
]
},
"file": "pandas/core/internals/blocks.py"
}
] | pandas-dev/pandas | 4da9cb69f84641cbcad837cccfe7102233dd6463 | BUG: df.replace(regex=True) causes highly fragmented DataFrame
### Pandas version checks
- [X] I have checked that this issue has not already been reported.
- [X] I have confirmed this bug exists on the [latest version](https://pandas.pydata.org/docs/whatsnew/index.html) of pandas.
- [ ] I have confirmed this bug ex... | diff --git a/pandas/core/internals/blocks.py b/pandas/core/internals/blocks.py
index 1d572dbfd5386..8923faf444953 100644
--- a/pandas/core/internals/blocks.py
+++ b/pandas/core/internals/blocks.py
@@ -480,7 +480,15 @@ def convert(
return [self.copy()] if copy else [self]
if self.ndim != 1 and se... |
pandas-dev__pandas-54643 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/io/parsers/arrow_parser_wrapper.py:ArrowParserWrapper._get_pyarrow_options",
"pandas/io/parsers/arrow_parser_wrapper.py:ArrowParserWrapper.read"
],
"edited_modules": [
... | pandas-dev/pandas | 2a08b052305ed35150d1355bc537548bec697778 | ENH: Pandas 2.0 with pyarrow engine add the argument like 'skip_bad_lines=True'
### Feature Type
- [X] Adding new functionality to pandas
- [ ] Changing existing functionality in pandas
- [ ] Removing existing functionality in pandas
### Problem Description
When I use Pandas 2.0 with pyarrow engine to ... | diff --git a/doc/source/whatsnew/v2.2.0.rst b/doc/source/whatsnew/v2.2.0.rst
index 8eab623a2b5f7..85cf59dc7135b 100644
--- a/doc/source/whatsnew/v2.2.0.rst
+++ b/doc/source/whatsnew/v2.2.0.rst
@@ -73,6 +73,8 @@ enhancement2
Other enhancements
^^^^^^^^^^^^^^^^^^
+
+- :func:`read_csv` now supports ``on_bad_lines`` pa... |
pandas-dev__pandas-55841 | [
{
"changes": {
"added_entities": [
"pandas/io/formats/format.py:get_precision"
],
"added_modules": [
"pandas/io/formats/format.py:get_precision"
],
"edited_entities": [
"pandas/io/formats/format.py:format_percentiles"
],
"edited_modules": [
... | pandas-dev/pandas | 6493d2a4bcf402d5fcb8b5349e70928d8dbf3344 | BUG: describe started rounding reported percentile 99.999% to 100%
### Pandas version checks
- [X] I have checked that this issue has not already been reported.
- [X] I have confirmed this bug exists on the [latest version](https://pandas.pydata.org/docs/whatsnew/index.html) of pandas.
- [ ] I have confirmed t... | diff --git a/doc/source/whatsnew/v2.2.0.rst b/doc/source/whatsnew/v2.2.0.rst
index 0b1eb1760b94f..c591ea4f24dba 100644
--- a/doc/source/whatsnew/v2.2.0.rst
+++ b/doc/source/whatsnew/v2.2.0.rst
@@ -423,7 +423,6 @@ I/O
- Bug in :meth:`pandas.read_excel` with ``engine="odf"`` (``ods`` files) when string contains annotati... |
pandas-dev__pandas-47630 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/io/xml.py:_XMLFrameParser._iterparse_nodes"
],
"edited_modules": [
"pandas/io/xml.py:_XMLFrameParser"
]
},
"file": "pandas/io/xml.py"
}
] | pandas-dev/pandas | d52f2ce0c66264e03bfb6c417e249287ab31bd04 | BUG: using read_xml with iterparse and names will ignore duplicate values
### Pandas version checks
- [X] I have checked that this issue has not already been reported.
- [X] I have confirmed this bug exists on the [latest version](https://pandas.pydata.org/docs/whatsnew/index.html) of pandas.
- [X] I have confirmed ... | diff --git a/pandas/io/xml.py b/pandas/io/xml.py
index 95fac0c739895..9b6eb31dafc07 100644
--- a/pandas/io/xml.py
+++ b/pandas/io/xml.py
@@ -342,7 +342,7 @@ def _iterparse_nodes(self, iterparse: Callable) -> list[dict[str, str | None]]:
for col, nm in zip(self.iterparse[row_node], self.names):
... |
pandas-dev__pandas-48147 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/indexes/datetimes.py:DatetimeIndex.strftime"
],
"edited_modules": [
"pandas/core/indexes/datetimes.py:DatetimeIndex"
]
},
"file": "pandas/core/indexes/datet... | pandas-dev/pandas | 065b51c1a17c6ee472af0273c0a16dfc55e26fb5 | BUG: FutureWarning for pandas datetime dtype series strftime with all NA values
### Pandas version checks
- [X] I have checked that this issue has not already been reported.
- [X] I have confirmed this bug exists on the [latest version](https://pandas.pydata.org/docs/whatsnew/index.html) of pandas.
- [ ] I hav... | diff --git a/doc/source/whatsnew/v1.4.4.rst b/doc/source/whatsnew/v1.4.4.rst
index 57b8fdee5888a..6b27f868c439f 100644
--- a/doc/source/whatsnew/v1.4.4.rst
+++ b/doc/source/whatsnew/v1.4.4.rst
@@ -30,6 +30,7 @@ Bug fixes
- The :class:`errors.FutureWarning` raised when passing arguments (other than ``filepath_or_buffer... |
pandas-dev__pandas-49212 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/io/formats/style.py:Styler.concat"
],
"edited_modules": [
"pandas/io/formats/style.py:Styler"
]
},
"file": "pandas/io/formats/style.py"
},
{
"changes": {... | pandas-dev/pandas | dc5e00d91dd515e7aeff1b84967afa0b4d39adca | BUG: chaining style.concat overwrites each other
### Pandas version checks
- [X] I have checked that this issue has not already been reported.
- [X] I have confirmed this bug exists on the [latest version](https://pandas.pydata.org/docs/whatsnew/index.html) of pandas.
- [x] I have confirmed this bug exists on the ma... | diff --git a/doc/source/whatsnew/v1.5.3.rst b/doc/source/whatsnew/v1.5.3.rst
index b6c1c857717c7..e6e81b1ea0f8d 100644
--- a/doc/source/whatsnew/v1.5.3.rst
+++ b/doc/source/whatsnew/v1.5.3.rst
@@ -25,6 +25,7 @@ Fixed regressions
Bug fixes
~~~~~~~~~
- Bug in :meth:`.Styler.to_excel` leading to error when unrecognized... |
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