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-51790 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/dtypes/dtypes.py:PeriodDtype.__new__",
"pandas/core/dtypes/dtypes.py:PeriodDtype._parse_dtype_strict"
],
"edited_modules": [
"pandas/core/dtypes/dtypes.py:PeriodD... | pandas-dev/pandas | c71645fff865c29e77bb81bd9510dba97d93a67c | PeriodDType should require freq argument
#### Code Sample, a copy-pastable example if possible
```python
>>> import pandas as pd
>>> pd.PeriodDtype()
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/home/tesla/Projects/pandas/pandas/core/dtypes/dtypes.py", line 149, in __repr__
... | diff --git a/doc/source/whatsnew/v2.1.0.rst b/doc/source/whatsnew/v2.1.0.rst
index 2ac20e97409e7..987807a4d7265 100644
--- a/doc/source/whatsnew/v2.1.0.rst
+++ b/doc/source/whatsnew/v2.1.0.rst
@@ -178,7 +178,8 @@ I/O
Period
^^^^^^
--
+- Bug in :class:`PeriodDtype` constructor failing to raise ``TypeError`` when no ... |
pandas-dev__pandas-57375 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/series.py:Series.to_string"
],
"edited_modules": [
"pandas/core/series.py:Series"
]
},
"file": "pandas/core/series.py"
}
] | pandas-dev/pandas | 479b5dcbed643e5356b4a2a45bac6c14ab0a8b36 | DEPR: Positional arguments in Series.to_markdown/string
While most method were captured in https://github.com/pandas-dev/pandas/issues/54229, `Series.to_string` and `Series.to_markdown` were missed
| diff --git a/doc/source/whatsnew/v3.0.0.rst b/doc/source/whatsnew/v3.0.0.rst
index 483cf659080ea..77c80dcfe7c7e 100644
--- a/doc/source/whatsnew/v3.0.0.rst
+++ b/doc/source/whatsnew/v3.0.0.rst
@@ -102,6 +102,7 @@ Deprecations
~~~~~~~~~~~~
- Deprecated :meth:`Timestamp.utcfromtimestamp`, use ``Timestamp.fromtimestamp(... |
pandas-dev__pandas-54015 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/io/formats/html.py:HTMLFormatter.__init__"
],
"edited_modules": [
"pandas/io/formats/html.py:HTMLFormatter"
]
},
"file": "pandas/io/formats/html.py"
}
] | pandas-dev/pandas | c92b3701efff16293bd110a3f06f458040b43d97 | BUG: Parameter `col_space` of `to_html` method not working with multi-level 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/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 137f2e5c12211..24def10266ab7 100644
--- a/doc/source/whatsnew/v2.1.0.rst
+++ b/doc/source/whatsnew/v2.1.0.rst
@@ -523,6 +523,7 @@ I/O
- Bug in :func:`read_html`, tail texts were removed together with elements containing ``display:none``... |
pandas-dev__pandas-53298 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/frame.py:DataFrame.unstack"
],
"edited_modules": [
"pandas/core/frame.py:DataFrame"
]
},
"file": "pandas/core/frame.py"
},
{
"changes": {
"add... | pandas-dev/pandas | 1a57d153732b888f98b42d87f590952b262641c3 | `sort=False` option to stack/unstack/pivot
It would be really nice if there was a `sort=False` option on stack/unstack and pivot. (Preferably the default)
It is reasonably common to have data in non-standard order that actually provides information (in my case, I have model names, and the order of the names denotes ... | diff --git a/doc/source/whatsnew/v2.1.0.rst b/doc/source/whatsnew/v2.1.0.rst
index 7cc2e19f477dd..bb51e64fe682d 100644
--- a/doc/source/whatsnew/v2.1.0.rst
+++ b/doc/source/whatsnew/v2.1.0.rst
@@ -98,6 +98,7 @@ Other enhancements
- Performance improvement in :func:`read_csv` (:issue:`52632`) with ``engine="c"``
- :me... |
pandas-dev__pandas-51542 | [
{
"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 | c239f54fdbab9a2bfc3c91c93a6662cb87e488a6 | API: ArrowExtensionArray.value_counts should return int64[pyarrow] instead of Int64
Currently this explicitly calls an astype
```
return Series(counts, index=index, name="count").astype("Int64")
```
But with `ArrowExtensionArray` now able to support all pyarrow types, this should preserve the pyarrow type and r... | diff --git a/doc/source/whatsnew/v2.0.0.rst b/doc/source/whatsnew/v2.0.0.rst
index 587010453db5a..95f84d6c85157 100644
--- a/doc/source/whatsnew/v2.0.0.rst
+++ b/doc/source/whatsnew/v2.0.0.rst
@@ -818,6 +818,7 @@ Other API changes
- :class:`DataFrame` and :class:`DataFrameGroupBy` aggregations (e.g. "sum") with object... |
pandas-dev__pandas-48782 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/describe.py:describe_numeric_1d"
],
"edited_modules": [
"pandas/core/describe.py:describe_numeric_1d"
]
},
"file": "pandas/core/describe.py"
}
] | pandas-dev/pandas | 6b93a0c6687ad1362ec58715b1751912783be411 | BUG: Regression on pandas 1.5.0 using describe with Int64 dtype getting a TypeError
### 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 ... | diff --git a/doc/source/whatsnew/v1.5.1.rst b/doc/source/whatsnew/v1.5.1.rst
index da0bd746e3da5..6798c7074228c 100644
--- a/doc/source/whatsnew/v1.5.1.rst
+++ b/doc/source/whatsnew/v1.5.1.rst
@@ -72,6 +72,7 @@ Fixed regressions
- Fixed Regression in :meth:`Series.__setitem__` casting ``None`` to ``NaN`` for object dt... |
pandas-dev__pandas-52123 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/apply.py:SeriesApply.apply_standard"
],
"edited_modules": [
"pandas/core/apply.py:SeriesApply"
]
},
"file": "pandas/core/apply.py"
}
] | pandas-dev/pandas | b6353699b847def984193296e778d166a5a5e464 | DEPR: Deprecate returning a DataFrame in Series.apply
### Feature Type
- [ ] Adding new functionality to pandas
- [X] Changing existing functionality in pandas
- [X] Removing existing functionality in pandas
`Series.apply` (more precisely `SeriesApply.apply_standard`) normally returns a `Series`, if supplie... | diff --git a/doc/source/user_guide/cookbook.rst b/doc/source/user_guide/cookbook.rst
index daf5a0e481b8e..3a0aad41933bc 100644
--- a/doc/source/user_guide/cookbook.rst
+++ b/doc/source/user_guide/cookbook.rst
@@ -794,12 +794,12 @@ Apply
index=["I", "II", "III"],
)
- def SeriesFromSubList(aList):
- ... |
pandas-dev__pandas-57474 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/arrays/masked.py:transpose_homogeneous_masked_arrays"
],
"edited_modules": [
"pandas/core/arrays/masked.py:transpose_homogeneous_masked_arrays"
]
},
"file":... | pandas-dev/pandas | 63dc0f76faa208450b8aaa57246029fcf94d015b | BUG: "ValueError: ndarray is not C-contiguous" when aggregating concatenated 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 ha... | diff --git a/doc/source/whatsnew/v2.2.1.rst b/doc/source/whatsnew/v2.2.1.rst
index ca4fef4f57fb6..54b0d5f93dfa3 100644
--- a/doc/source/whatsnew/v2.2.1.rst
+++ b/doc/source/whatsnew/v2.2.1.rst
@@ -32,6 +32,7 @@ Fixed regressions
- Fixed regression in :meth:`DataFrame.to_dict` with ``orient='list'`` and datetime or tim... |
pandas-dev__pandas-55340 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/algorithms.py:mode"
],
"edited_modules": [
"pandas/core/algorithms.py:mode"
]
},
"file": "pandas/core/algorithms.py"
},
{
"changes": {
"added_... | pandas-dev/pandas | 55cd96a1aaf255f5b74d4d37bab3fe834d210f98 | ENH: support masked arrays in hashtable-based functions (duplicated, isin, mode)
We have some algorithms which are based on the class-based HashTable implementation (`hashtable_class_helper.pxi.in`), such as `unique`, and those are already partly updated to support masked arrays as input (eg https://github.com/pandas-d... | diff --git a/doc/source/whatsnew/v2.2.0.rst b/doc/source/whatsnew/v2.2.0.rst
index 48aee18c90456..066f0b6d247a1 100644
--- a/doc/source/whatsnew/v2.2.0.rst
+++ b/doc/source/whatsnew/v2.2.0.rst
@@ -318,6 +318,7 @@ Performance improvements
- Performance improvement in :meth:`MultiIndex.get_indexer` when ``method`` is no... |
pandas-dev__pandas-48711 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/indexing.py:_iLocIndexer._setitem_single_column"
],
"edited_modules": [
"pandas/core/indexing.py:_iLocIndexer"
]
},
"file": "pandas/core/indexing.py"
}
] | pandas-dev/pandas | a375061d9518de447ef05b6490eeb264490a3952 | REGR: Setting values with 'loc' and boolean mask mixes up values (all-True mask)
According to [documentation](https://pandas.pydata.org/pandas-docs/stable/reference/api/pandas.DataFrame.loc.html), using `loc` should work with Boolean arrays. However, the following does not seem to work:
```python
import pandas as ... | diff --git a/doc/source/whatsnew/v1.5.1.rst b/doc/source/whatsnew/v1.5.1.rst
index 4a7eaf20a8745..4717c6fcf5ea1 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:`Dat... |
pandas-dev__pandas-53736 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/resample.py:TimeGrouper._get_time_bins",
"pandas/core/resample.py:TimeGrouper._get_time_period_bins"
],
"edited_modules": [
"pandas/core/resample.py:TimeGrouper"
... | pandas-dev/pandas | bc4f1493b214604458fbc3bfa6a957803f139f0a | BUG: resampling empty series loses time zone from 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 exists on... | diff --git a/doc/source/whatsnew/v2.1.0.rst b/doc/source/whatsnew/v2.1.0.rst
index d9cdc8beaebea..35566f8b63a19 100644
--- a/doc/source/whatsnew/v2.1.0.rst
+++ b/doc/source/whatsnew/v2.1.0.rst
@@ -457,6 +457,7 @@ Plotting
Groupby/resample/rolling
^^^^^^^^^^^^^^^^^^^^^^^^
- Bug in :meth:`DataFrame.resample` and :meth... |
pandas-dev__pandas-54068 | [
{
"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 | b4929f8536fdfa9cd8abb181cdd16a522035f9e7 | REGR: DataFrame.stack was sometimes sorting resulting index
#53825 removed the `sort` argument for DataFrame.stack that was added in #53282 due to #15105, the default being `sort=True`. Prior to #53825, I spent a while trying the implementation in #53921 (where I had implemented sort=True), and test after test was fail... | diff --git a/doc/source/whatsnew/v2.1.0.rst b/doc/source/whatsnew/v2.1.0.rst
index e154ca2cd3884..5bde92ddc6dde 100644
--- a/doc/source/whatsnew/v2.1.0.rst
+++ b/doc/source/whatsnew/v2.1.0.rst
@@ -113,6 +113,7 @@ Other enhancements
- Let :meth:`DataFrame.to_feather` accept a non-default :class:`Index` and non-string c... |
pandas-dev__pandas-48321 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/generic.py:NDFrame.astype"
],
"edited_modules": [
"pandas/core/generic.py:NDFrame"
]
},
"file": "pandas/core/generic.py"
}
] | pandas-dev/pandas | e3d0126e8af9f0a23dd6609a23817f858825e089 | ENH: dataframe.astype() exception message to include column name
#### Is your feature request related to a problem?
When using dataframe.astype() and there is a column missing or there are some values that cannot be correctly converted, there is an exception raised. But there is no way to know which column is missin... | diff --git a/doc/source/whatsnew/v2.0.0.rst b/doc/source/whatsnew/v2.0.0.rst
index 508d5d8bc4cc1..70e9895504eb9 100644
--- a/doc/source/whatsnew/v2.0.0.rst
+++ b/doc/source/whatsnew/v2.0.0.rst
@@ -36,7 +36,7 @@ Other enhancements
- Added ``index`` parameter to :meth:`DataFrame.to_dict` (:issue:`46398`)
- Added metada... |
pandas-dev__pandas-51548 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/arrays/arrow/dtype.py:ArrowDtype.construct_from_string"
],
"edited_modules": [
"pandas/core/arrays/arrow/dtype.py:ArrowDtype"
]
},
"file": "pandas/core/arra... | pandas-dev/pandas | 25775ba6a6acb99b397bc4f938c3a3a01df8fa58 | BUG: dtype="int64[pyarrow]foobar[pyarrow]" fails to raise
```python
pd.Series(range(3), dtype="int64[pyarrow]foobar[pyarrow]")
```
In ArrowDtype.construct_from_string we do
```
if not string.endswith("[pyarrow]"):
raise TypeError(f"'{string}' must end with '[pyarrow]'")
if string... | diff --git a/doc/source/whatsnew/v2.0.0.rst b/doc/source/whatsnew/v2.0.0.rst
index bdbde438217b9..0e9994a6b1988 100644
--- a/doc/source/whatsnew/v2.0.0.rst
+++ b/doc/source/whatsnew/v2.0.0.rst
@@ -1417,7 +1417,7 @@ Metadata
Other
^^^^^
-
+- Bug in incorrectly accepting dtype strings containing "[pyarrow]" more than... |
pandas-dev__pandas-53962 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/generic.py:NDFrame.interpolate"
],
"edited_modules": [
"pandas/core/generic.py:NDFrame"
]
},
"file": "pandas/core/generic.py"
}
] | pandas-dev/pandas | c126eeb39206e1fb68db19e9289f30b35e25fa9f | BUG: interpolate with ffill/bfill method, axis=1, multi-block
### 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/doc/source/whatsnew/v2.1.0.rst b/doc/source/whatsnew/v2.1.0.rst
index 0f669beaa036f..ad84058d2b75a 100644
--- a/doc/source/whatsnew/v2.1.0.rst
+++ b/doc/source/whatsnew/v2.1.0.rst
@@ -446,6 +446,7 @@ Indexing
Missing
^^^^^^^
+- Bug in :meth:`DataFrame.interpolate` failing to fill across multiblock data... |
pandas-dev__pandas-49377 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/io/formats/style.py:_background_gradient"
],
"edited_modules": [
"pandas/io/formats/style.py:_background_gradient"
]
},
"file": "pandas/io/formats/style.py"
},... | pandas-dev/pandas | 321157d2ff96433eb9381f556575ee6e0b97a3c4 | BUG: can't pass `Colormap` instance when plotting if using matplotlib >= 3.6
### 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/v1.5.2.rst b/doc/source/whatsnew/v1.5.2.rst
index 4f6274b9084da..c95f563a77708 100644
--- a/doc/source/whatsnew/v1.5.2.rst
+++ b/doc/source/whatsnew/v1.5.2.rst
@@ -14,6 +14,8 @@ including other versions of pandas.
Fixed regressions
~~~~~~~~~~~~~~~~~
- Fixed regression in :meth:`Serie... |
pandas-dev__pandas-51398 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/groupby/generic.py:DataFrameGroupBy._iterate_slices"
],
"edited_modules": [
"pandas/core/groupby/generic.py:DataFrameGroupBy"
]
},
"file": "pandas/core/grou... | pandas-dev/pandas | ae7b6d6b7644b8667b7fcd6d213951cd6b2c0f4c | REF: de-duplicate iterate_slices
```
# From DataFrameGroupBy
def _iterate_slices(self) -> Iterable[Series]:
obj = self._selected_obj
if self.axis == 1:
obj = obj.T
if isinstance(obj, Series) and obj.name not in self.exclusions:
# Occurs when doing DataFrameGr... | diff --git a/doc/source/whatsnew/v2.0.0.rst b/doc/source/whatsnew/v2.0.0.rst
index a8d6f3fce5bb7..2fba47d41f539 100644
--- a/doc/source/whatsnew/v2.0.0.rst
+++ b/doc/source/whatsnew/v2.0.0.rst
@@ -1377,6 +1377,7 @@ Groupby/resample/rolling
- Bug in :meth:`.DataFrameGroupBy.agg` with ``engine="numba"`` failing to respe... |
pandas-dev__pandas-50849 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/reshape/encoding.py:_get_dummies_1d"
],
"edited_modules": [
"pandas/core/reshape/encoding.py:_get_dummies_1d"
]
},
"file": "pandas/core/reshape/encoding.py"... | pandas-dev/pandas | ce9e3d658d6efa3600a4563ca7a00e7a15b80272 | ENH: support nullable dtypes in get_dummies
#### Code Sample, a copy-pastable example if possible
```python
import pandas as pd
series = pd.Series(list('AA'))
col = pd.get_dummies(series, dtype='UInt8').A
assert col.dtype.name == 'UInt8' # Actual: np.uint8
```
#### Problem description
In `get_dummies`,... | diff --git a/doc/source/whatsnew/v2.0.0.rst b/doc/source/whatsnew/v2.0.0.rst
index bbecf3fee01f3..ff21a68d31f92 100644
--- a/doc/source/whatsnew/v2.0.0.rst
+++ b/doc/source/whatsnew/v2.0.0.rst
@@ -158,6 +158,7 @@ Other enhancements
- Added ``name`` parameter to :meth:`IntervalIndex.from_breaks`, :meth:`IntervalIndex.f... |
pandas-dev__pandas-48022 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/reshape/encoding.py:_get_dummies_1d"
],
"edited_modules": [
"pandas/core/reshape/encoding.py:_get_dummies_1d"
]
},
"file": "pandas/core/reshape/encoding.py"... | pandas-dev/pandas | cdb905a8b7e25433a3268951fc3ec68aa03914aa | ENH: pd.get_dummies should not default to dtype np.uint8
I was caught by surprise the other day when doing some vector subtraction when using pd.get_dummies. The issue is that the default dtype is np.uint8 which means that cases where a 1 is subtracted from a 0 will result in 255.
I [tweeted about this surprise](htt... | diff --git a/doc/source/whatsnew/v1.6.0.rst b/doc/source/whatsnew/v1.6.0.rst
index bdaea89776b7c..0cad6f3caaf91 100644
--- a/doc/source/whatsnew/v1.6.0.rst
+++ b/doc/source/whatsnew/v1.6.0.rst
@@ -118,6 +118,7 @@ Other API changes
^^^^^^^^^^^^^^^^^
- Passing ``nanoseconds`` greater than 999 or less than 0 in :class:`... |
pandas-dev__pandas-49637 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/frame.py:DataFrame.__init__",
"pandas/core/frame.py:DataFrame.from_records"
],
"edited_modules": [
"pandas/core/frame.py:DataFrame"
]
},
"file": "pa... | pandas-dev/pandas | 7c208c8907f5ab18f807366c0c5e26ae1dbca299 | BUG/API: Indexes on empty frames/series should be RangeIndex, are Index[object]
### 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 7838ef8df4164..1fc7a06f8b7f0 100644
--- a/doc/source/whatsnew/v2.0.0.rst
+++ b/doc/source/whatsnew/v2.0.0.rst
@@ -311,6 +311,35 @@ The new behavior, as for datetime64, either gives exactly the requested dtype or
ser.astype("timedelta... |
pandas-dev__pandas-53102 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/indexes/base.py:Index._wrap_joined_index"
],
"edited_modules": [
"pandas/core/indexes/base.py:Index"
]
},
"file": "pandas/core/indexes/base.py"
}
] | pandas-dev/pandas | 13c99222ca4ef37562a0d0501a309a5b4de4c6f7 | BUG: Equal input DataFrames but different 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.
- [ ] I have confirmed this bug exists on the [... | diff --git a/doc/source/whatsnew/v2.0.2.rst b/doc/source/whatsnew/v2.0.2.rst
index 7dc00e8e4bfeb..1bc2fda7b8af9 100644
--- a/doc/source/whatsnew/v2.0.2.rst
+++ b/doc/source/whatsnew/v2.0.2.rst
@@ -15,6 +15,8 @@ Fixed regressions
~~~~~~~~~~~~~~~~~
- Fixed regression in :meth:`DataFrame.loc` losing :class:`MultiIndex` ... |
pandas-dev__pandas-56558 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/indexes/datetimelike.py:DatetimeTimedeltaMixin._as_range_index"
],
"edited_modules": [
"pandas/core/indexes/datetimelike.py:DatetimeTimedeltaMixin"
]
},
"fi... | pandas-dev/pandas | ae8602272d415e6daaa9f190cfd876cdc9cf2c50 | DEPR: Tick.delta
Tick.delta was implemented back when we only supported nanos. It will overflow (with OverflowError instead of OutOfBoundsTimedelta) on very-large ticks. Better to avoid it altogether and tell users to do `pd.Timedelta(tick)`.
| diff --git a/doc/source/user_guide/timeseries.rst b/doc/source/user_guide/timeseries.rst
index 105d11b67c9bf..0f0e6271d8329 100644
--- a/doc/source/user_guide/timeseries.rst
+++ b/doc/source/user_guide/timeseries.rst
@@ -1770,7 +1770,8 @@ We can instead only resample those groups where we have points as follows:
d... |
pandas-dev__pandas-51206 | [
{
"changes": {
"added_entities": [
"pandas/core/groupby/grouper.py:Grouper.indexer",
"pandas/core/groupby/grouper.py:Grouper.obj"
],
"added_modules": null,
"edited_entities": [
"pandas/core/groupby/grouper.py:Grouper.__init__",
"pandas/core/groupby/grouper... | pandas-dev/pandas | 409673359972653a2fde437cb2a608a66c5753d1 | REF/API: make pd.Grouper immutable
Grouper._set_grouper (called by Grouper._get_grouper) sets some of its own attributes. It would be much easier to reason about this code if this were not the case. An afternoon spent trying to disentangle this has not gotten me very far. This may need a more invasive fix.
| diff --git a/doc/source/whatsnew/v2.0.0.rst b/doc/source/whatsnew/v2.0.0.rst
index 532881fee0892..d7888c6c75454 100644
--- a/doc/source/whatsnew/v2.0.0.rst
+++ b/doc/source/whatsnew/v2.0.0.rst
@@ -786,6 +786,9 @@ Deprecations
- Deprecated calling ``float`` or ``int`` on a single element :class:`Series` to return a ``f... |
pandas-dev__pandas-50939 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/tools/datetimes.py:_convert_listlike_datetimes",
"pandas/core/tools/datetimes.py:to_datetime"
],
"edited_modules": [
"pandas/core/tools/datetimes.py:_convert_list... | pandas-dev/pandas | f3d4113052e3d09f3a2cf288a9f1dcd17ab113a1 | API allow for `format='mixed'` in to_datetime
This was brought up in the community call.
https://github.com/pandas-dev/pandas/pull/50939 adds support for mixed ISO8601 strings. But people may have mixed not-necessarily-ISO8601 strings, and want them parsed in a more performant manner than `apply`.
So, `format='mi... | diff --git a/doc/source/user_guide/io.rst b/doc/source/user_guide/io.rst
index ec082cb90e75c..3b06fa1b5517a 100644
--- a/doc/source/user_guide/io.rst
+++ b/doc/source/user_guide/io.rst
@@ -1001,14 +1001,23 @@ way to parse dates is to explicitly set ``format=``.
)
df
-In the case that you have mixed datetime f... |
pandas-dev__pandas-56515 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/missing.py:get_interp_index",
"pandas/core/missing.py:_interpolate_scipy_wrapper"
],
"edited_modules": [
"pandas/core/missing.py:get_interp_index",
"panda... | pandas-dev/pandas | 41014db0e802bd9d2ae6326d6314c65ecad9b28d | Time Series Interpolation is wrong
#### Problem description
```python
dates = pd.date_range('2016-08-28', periods=5, freq='21H')
ts1 = pd.Series(np.arange(5), dates)
ts1
```
```
2016-08-28 00:00:00 0
2016-08-28 21:00:00 1
2016-08-29 18:00:00 2
2016-08-30 15:00:00 3
2016-08-31 12:00:00 4
... | diff --git a/doc/source/whatsnew/v3.0.0.rst b/doc/source/whatsnew/v3.0.0.rst
index 59cc709359a8d..4f55bd0d5e7ad 100644
--- a/doc/source/whatsnew/v3.0.0.rst
+++ b/doc/source/whatsnew/v3.0.0.rst
@@ -437,6 +437,7 @@ Groupby/resample/rolling
- Bug in :meth:`.DataFrameGroupBy.groups` and :meth:`.SeriesGroupby.groups` that ... |
pandas-dev__pandas-51346 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/indexes/base.py:Index._validate_sort_keyword",
"pandas/core/indexes/base.py:Index.union",
"pandas/core/indexes/base.py:Index.intersection",
"pandas/core/indexes/base.... | pandas-dev/pandas | 031e9bbc3a9db4ab78be8b477b15d7173a1f625e | Implement sort=True for Index setops
https://github.com/pandas-dev/pandas/pull/25063 made the 0.24.x `sort=True` behavior be enabled by `sort=None`. This allows us to use `sort=True` to mean "always sort".
So rather than raising
```pytb
In [1]: import pandas as pd
In [2]: idx = pd.Index([1, 0])
In [3]: idx... | diff --git a/doc/source/whatsnew/v2.0.0.rst b/doc/source/whatsnew/v2.0.0.rst
index 29f360e050548..a393e0dca4c79 100644
--- a/doc/source/whatsnew/v2.0.0.rst
+++ b/doc/source/whatsnew/v2.0.0.rst
@@ -312,6 +312,7 @@ Other enhancements
- Added new argument ``dtype`` to :func:`read_sql` to be consistent with :func:`read_sq... |
pandas-dev__pandas-57637 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/frame.py:DataFrame.update"
],
"edited_modules": [
"pandas/core/frame.py:DataFrame"
]
},
"file": "pandas/core/frame.py"
}
] | pandas-dev/pandas | ab2980ba52ae24db72765b3c4ae1d33ac8fad3f5 | BUG: DataFrame.update doesn't preserve 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 bug exists on the [main... | diff --git a/doc/source/whatsnew/v3.0.0.rst b/doc/source/whatsnew/v3.0.0.rst
index a95f0485abd5f..6cba1806d3274 100644
--- a/doc/source/whatsnew/v3.0.0.rst
+++ b/doc/source/whatsnew/v3.0.0.rst
@@ -265,6 +265,7 @@ Bug fixes
~~~~~~~~~
- Fixed bug in :meth:`DataFrame.join` inconsistently setting result index name (:issu... |
pandas-dev__pandas-55079 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": null,
"edited_modules": null
},
"file": "pandas/_libs/tslibs/__init__.py"
},
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": null,
"ed... | pandas-dev/pandas | aeb3644567a10296cc09aed03bf7e0a3780e67ee | ENH: make guess_datetime_format public
### Feature Type
- [ ] Adding new functionality to pandas
- [X] Changing existing functionality in pandas
- [ ] Removing existing functionality in pandas
### Problem Description
Pandas can infer datetime formats when parsing datetimes, but does not provide access to the infe... | diff --git a/doc/source/reference/general_functions.rst b/doc/source/reference/general_functions.rst
index 02b0bf5d13dde..e93514de5f762 100644
--- a/doc/source/reference/general_functions.rst
+++ b/doc/source/reference/general_functions.rst
@@ -73,6 +73,13 @@ Top-level evaluation
eval
+Datetime formats
+~~~~~~~... |
pandas-dev__pandas-58030 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/groupby/groupby.py:GroupBy._transform_with_numba"
],
"edited_modules": [
"pandas/core/groupby/groupby.py:GroupBy"
]
},
"file": "pandas/core/groupby/groupby.... | pandas-dev/pandas | b552dc95c9fa50e9ca2a0c9f9cdb8757f794fedb | BUG: DataFrameGroupBy.transform with engine='numba' reorder output by index
### 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/v3.0.0.rst b/doc/source/whatsnew/v3.0.0.rst
index a398b93b60018..2f23a240bdcd1 100644
--- a/doc/source/whatsnew/v3.0.0.rst
+++ b/doc/source/whatsnew/v3.0.0.rst
@@ -303,6 +303,7 @@ Bug fixes
- Fixed bug in :class:`SparseDtype` for equal comparison with na fill value. (:issue:`54770`)
-... |
pandas-dev__pandas-53855 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/io/formats/format.py:GenericArrayFormatter._format_strings"
],
"edited_modules": [
"pandas/io/formats/format.py:GenericArrayFormatter"
]
},
"file": "pandas/io/fo... | pandas-dev/pandas | 49851bbb723f758bbdbd983fe0cb36c2bc5d1b83 | BUG: DataFrame.to_string() creates extra space for string dtypes 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.
- [X] I have con... | diff --git a/doc/source/whatsnew/v2.0.3.rst b/doc/source/whatsnew/v2.0.3.rst
index 3e12af946e661..8aab1e7b58f5e 100644
--- a/doc/source/whatsnew/v2.0.3.rst
+++ b/doc/source/whatsnew/v2.0.3.rst
@@ -14,6 +14,7 @@ including other versions of pandas.
Fixed regressions
~~~~~~~~~~~~~~~~~
- Fixed performance regression in ... |
pandas-dev__pandas-53496 | [
{
"changes": {
"added_entities": [
"pandas/core/generic.py:NDFrame._deprecate_downcast",
"pandas/core/generic.py:NDFrame._fillna_with_method"
],
"added_modules": null,
"edited_entities": [
"pandas/core/generic.py:NDFrame.fillna",
"pandas/core/generic.py:ND... | pandas-dev/pandas | 1cae7a396c38ea7d1bbd1f7668c3a7c5f0db3f3e | DEPR: fillna 'method'
Seems like `obj.fillna(method="ffill")` is redundant with `obj.ffill()`. If that is accurate, we should deprecate the method keyword in fillna.
| diff --git a/ci/code_checks.sh b/ci/code_checks.sh
index 304b4616355db..61c68e0dd5e66 100755
--- a/ci/code_checks.sh
+++ b/ci/code_checks.sh
@@ -289,6 +289,7 @@ if [[ -z "$CHECK" || "$CHECK" == "docstrings" ]]; then
pandas.core.groupby.SeriesGroupBy.cumprod \
pandas.core.groupby.SeriesGroupBy.cumsum \... |
pandas-dev__pandas-53958 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": null,
"edited_modules": null
},
"file": "pandas/api/typing/__init__.py"
}
] | pandas-dev/pandas | 1186ee0080a43a08c3431a5bfa86898f6ec3b54d | API: `NaTType` and `NAType` are in inconsistent packages
If you are adding type checking to your application, you may need access to `NaTType` and `NAType`. But their locations are in inconsistent packages. The following imports work:
```python
from pandas._libs import NaTType
from pandas._libs.missing import NATy... | diff --git a/pandas/api/typing/__init__.py b/pandas/api/typing/__init__.py
index 4c535bf81d3b6..9b5d2cb06b523 100644
--- a/pandas/api/typing/__init__.py
+++ b/pandas/api/typing/__init__.py
@@ -2,6 +2,9 @@
Public API classes that store intermediate results useful for type-hinting.
"""
+from pandas._libs import NaTTy... |
pandas-dev__pandas-51241 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/indexes/base.py:Index._should_fallback_to_positional"
],
"edited_modules": [
"pandas/core/indexes/base.py:Index"
]
},
"file": "pandas/core/indexes/base.py"
... | pandas-dev/pandas | c4caed6be59fa8f54f13ea7e963107404ad99da4 | BUG: Indexing with pd.Float(32|64)Dtype indexes is different than with numpy float indexes
### 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/v2.0.0.rst b/doc/source/whatsnew/v2.0.0.rst
index 29f360e050548..c991b3b6a6004 100644
--- a/doc/source/whatsnew/v2.0.0.rst
+++ b/doc/source/whatsnew/v2.0.0.rst
@@ -1250,6 +1250,8 @@ Indexing
- Bug in :meth:`Series.loc` raising error for out of bounds end of slice indexer (:issue:`50161... |
pandas-dev__pandas-50909 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/io/json/_json.py:Parser._try_convert_to_date"
],
"edited_modules": [
"pandas/io/json/_json.py:Parser"
]
},
"file": "pandas/io/json/_json.py"
}
] | pandas-dev/pandas | bf1d0082a3240845f76e697872634c80c8ca6a92 | API: to_datetime with unit changes how strings are interpreted
```python
vals = ["2016-01-02 03:04:05"]
pd.to_datetime(vals) # <- works
pd.to_datetime(vals, unit="s") # <- raises
vals2 = ["20160102"]
>>> pd.to_datetime(vals2)
DatetimeIndex(['2016-01-02'], dtype='datetime64[ns]', freq=None)
>>> pd.to_date... | diff --git a/doc/source/whatsnew/v2.0.0.rst b/doc/source/whatsnew/v2.0.0.rst
index a30d68319cafe..b9ee5d5590861 100644
--- a/doc/source/whatsnew/v2.0.0.rst
+++ b/doc/source/whatsnew/v2.0.0.rst
@@ -630,6 +630,7 @@ Other API changes
Deprecations
~~~~~~~~~~~~
- Deprecated argument ``infer_datetime_format`` in :func:`to... |
pandas-dev__pandas-56055 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/indexes/base.py:Index.__getitem__"
],
"edited_modules": [
"pandas/core/indexes/base.py:Index"
]
},
"file": "pandas/core/indexes/base.py"
}
] | pandas-dev/pandas | d22adf6a4bed08050b161207d86e02c1bec6d5c4 | BUG: inconsistency in Index.__getitem__ for Numpy and non-numpy 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 confirm... | diff --git a/doc/source/whatsnew/v2.2.0.rst b/doc/source/whatsnew/v2.2.0.rst
index b0f51751b027c..6c45e247f949e 100644
--- a/doc/source/whatsnew/v2.2.0.rst
+++ b/doc/source/whatsnew/v2.2.0.rst
@@ -289,6 +289,7 @@ Other Deprecations
- Deprecated automatic downcasting of object-dtype results in :meth:`Series.replace` an... |
pandas-dev__pandas-57399 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/indexes/interval.py:interval_range"
],
"edited_modules": [
"pandas/core/indexes/interval.py:interval_range"
]
},
"file": "pandas/core/indexes/interval.py"
... | pandas-dev/pandas | c43727711067e474857005cb7669fcec6552cac2 | ENH: Preserve input `start`/`end` type in `interval_range`
```python
In [1]: import pandas as pd
In [2]: import numpy as np
In [3]: pd.interval_range(start=np.int8(1), end=np.int8(10))
Out[3]:
IntervalIndex([(1, 2], (2, 3], (3, 4], (4, 5], (5, 6], (6, 7], (7, 8], (8, 9],
(9, 10]],
... | diff --git a/doc/source/whatsnew/v3.0.0.rst b/doc/source/whatsnew/v3.0.0.rst
index 2ada386f76b87..941ad4612b73c 100644
--- a/doc/source/whatsnew/v3.0.0.rst
+++ b/doc/source/whatsnew/v3.0.0.rst
@@ -211,7 +211,7 @@ Strings
Interval
^^^^^^^^
--
+- Bug in :func:`interval_range` where start and end numeric types were al... |
pandas-dev__pandas-55963 | [
{
"changes": {
"added_entities": [
"pandas/core/arrays/period.py:PeriodArray._from_fields"
],
"added_modules": null,
"edited_entities": [
"pandas/core/arrays/period.py:PeriodArray._generate_range"
],
"edited_modules": [
"pandas/core/arrays/period.py:Pe... | pandas-dev/pandas | e89d18c81b5ca74425f63b189d52b656b963b377 | DEPR: PeriodIndex.__new__ accepting ordinals, fields
Let's implement PeriodIndex.from_fields and PeriodIndex.from_ordinals and deprecate allowing mixing-and-matching in the constructor.
| diff --git a/doc/source/reference/indexing.rst b/doc/source/reference/indexing.rst
index 25e5b3b46b4f3..fa6105761df0a 100644
--- a/doc/source/reference/indexing.rst
+++ b/doc/source/reference/indexing.rst
@@ -489,3 +489,5 @@ Methods
PeriodIndex.asfreq
PeriodIndex.strftime
PeriodIndex.to_timestamp
+ Pe... |
pandas-dev__pandas-52620 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/io/html.py:_read",
"pandas/io/html.py:_HtmlFrameParser.__init__",
"pandas/io/html.py:_BeautifulSoupHtml5LibFrameParser._setup_build_doc",
"pandas/io/html.py:_LxmlFramePars... | pandas-dev/pandas | 811610d1ab5c881a72aa907cdde21fa5e42d515f | ENH: support `storage_options` in `pandas.read_html`
### Feature Type
- [X] Adding new functionality to pandas
### Problem Description
I wish [`pandas.read_html`](https://pandas.pydata.org/docs/reference/api/pandas.read_html.html) supported the `storage_options` keyword argument, just like [`pandas.read_json`]... | diff --git a/doc/source/user_guide/io.rst b/doc/source/user_guide/io.rst
index daf4c7b54331b..3dba120c0c64b 100644
--- a/doc/source/user_guide/io.rst
+++ b/doc/source/user_guide/io.rst
@@ -2490,6 +2490,47 @@ Read a URL with no options:
The data from the above URL changes every Monday so the resulting data above m... |
pandas-dev__pandas-56412 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/arrays/arrow/array.py:ArrowExtensionArray._str_find"
],
"edited_modules": [
"pandas/core/arrays/arrow/array.py:ArrowExtensionArray"
]
},
"file": "pandas/cor... | pandas-dev/pandas | 46c8da3e5b987154d2e0a44562c71be635ae826a | BUG: Series.str.find with negative start produces unexpected results for arrow strings
### 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/doc/source/whatsnew/v2.2.0.rst b/doc/source/whatsnew/v2.2.0.rst
index 919ac8b03f936..1544b3d953d71 100644
--- a/doc/source/whatsnew/v2.2.0.rst
+++ b/doc/source/whatsnew/v2.2.0.rst
@@ -577,6 +577,7 @@ Strings
- Bug in :func:`pandas.api.types.is_string_dtype` while checking object array with no elements is ... |
pandas-dev__pandas-48651 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/io/parsers/c_parser_wrapper.py:CParserWrapper.__init__"
],
"edited_modules": [
"pandas/io/parsers/c_parser_wrapper.py:CParserWrapper"
]
},
"file": "pandas/io/par... | pandas-dev/pandas | 5de24481d817339829911e61bd62170a8d0b2734 | BUG: regression in read_csv reading from file stream with encoding
### 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/v1.5.1.rst b/doc/source/whatsnew/v1.5.1.rst
index f8069b5476d9e..9d40d9118db32 100644
--- a/doc/source/whatsnew/v1.5.1.rst
+++ b/doc/source/whatsnew/v1.5.1.rst
@@ -14,7 +14,7 @@ including other versions of pandas.
Fixed regressions
~~~~~~~~~~~~~~~~~
--
+- Regression in :func:`.read_... |
pandas-dev__pandas-50627 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/apply.py:Apply.agg",
"pandas/core/apply.py:Apply.transform_str_or_callable"
],
"edited_modules": [
"pandas/core/apply.py:Apply"
]
},
"file": "pandas... | pandas-dev/pandas | 71db310a328a0dfa194ef0fe2b95238817b4f419 | API: GroupBy.agg() numeric_only deprecation with custom function
Case: using `groupby().agg()` with a custom numpy funtion object (`np.mean`) instead of a built-in function string name (`"mean"`).
When using pandas 1.5, we get a future warning about numeric_only going to change (https://github.com/pandas-dev/pandas/... | diff --git a/doc/source/whatsnew/v1.5.3.rst b/doc/source/whatsnew/v1.5.3.rst
index 9d17d3cf7bea9..2ff1ed541aed4 100644
--- a/doc/source/whatsnew/v1.5.3.rst
+++ b/doc/source/whatsnew/v1.5.3.rst
@@ -19,6 +19,7 @@ Fixed regressions
- Enforced reversion of ``color`` as an alias for ``c`` and ``size`` as an alias for ``s``... |
pandas-dev__pandas-56321 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/indexing.py:_iLocIndexer._setitem_with_indexer"
],
"edited_modules": [
"pandas/core/indexing.py:_iLocIndexer"
]
},
"file": "pandas/core/indexing.py"
}
] | pandas-dev/pandas | 98e1d2f8cec1593bb8bc6a8dbdd164372286ea09 | BUG: Creating a string column on a mask results in NaN being stringyfied and potentially truncated based on the 'maxchar' value of the 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.pyda... | diff --git a/doc/source/whatsnew/v2.2.0.rst b/doc/source/whatsnew/v2.2.0.rst
index 8c475791df64d..80d86805ded49 100644
--- a/doc/source/whatsnew/v2.2.0.rst
+++ b/doc/source/whatsnew/v2.2.0.rst
@@ -618,6 +618,7 @@ Indexing
- Bug in :meth:`DataFrame.loc` when setting :class:`Series` with extension dtype into NumPy dtype... |
pandas-dev__pandas-55370 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/indexes/base.py:Index._join_multi"
],
"edited_modules": [
"pandas/core/indexes/base.py:Index"
]
},
"file": "pandas/core/indexes/base.py"
}
] | pandas-dev/pandas | 8664572fe63dbcb865588d9d564b49a572c3351e | BUG: Join of DataFrames with MultiIndex does not keep order of index
- [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 Sam... | diff --git a/doc/source/whatsnew/v2.2.0.rst b/doc/source/whatsnew/v2.2.0.rst
index fa3cef6d9457d..620dd8c3c0c37 100644
--- a/doc/source/whatsnew/v2.2.0.rst
+++ b/doc/source/whatsnew/v2.2.0.rst
@@ -133,10 +133,36 @@ and ``sort=False``:
result
-.. _whatsnew_220.notable_bug_fixes.notable_bug_fix2:
+.. _whatsnew_2... |
pandas-dev__pandas-56788 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/interchange/column.py:PandasColumn.dtype"
],
"edited_modules": [
"pandas/core/interchange/column.py:PandasColumn"
]
},
"file": "pandas/core/interchange/colu... | pandas-dev/pandas | 5fc2ed2703a1370207f4ebad834e665b6c2ad42f | BUG: Interchange protocol implementation does not allow for empty string 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/whatsnew/index.html) of pandas.
- [ ] I have con... | diff --git a/doc/source/whatsnew/v2.2.0.rst b/doc/source/whatsnew/v2.2.0.rst
index 9a9ac769a4893..2018c8936ee3c 100644
--- a/doc/source/whatsnew/v2.2.0.rst
+++ b/doc/source/whatsnew/v2.2.0.rst
@@ -934,6 +934,7 @@ Other
- Bug in :func:`cut` and :func:`qcut` with ``datetime64`` dtype values with non-nanosecond units inc... |
pandas-dev__pandas-52459 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/indexes/accessors.py:ArrowTemporalProperties.to_pydatetime",
"pandas/core/indexes/accessors.py:DatetimeProperties.to_pydatetime"
],
"edited_modules": [
"pandas/co... | pandas-dev/pandas | b637ad2a7d75c85d39f4e042e960bb82c76e518a | API/INT: why is to_pydatetime handled differently in Series.dt accessor?
While reviewing: https://github.com/pandas-dev/pandas/pull/20198, I notices this was defined in the `DatetimeProperties` itself:
https://github.com/pandas-dev/pandas/blob/78ded2585efb3e4b5164af91c85927b99298f026/pandas/core/indexes/accessors.py... | diff --git a/doc/source/whatsnew/v2.1.0.rst b/doc/source/whatsnew/v2.1.0.rst
index 38161a29a9ff7..daed6fbff71fc 100644
--- a/doc/source/whatsnew/v2.1.0.rst
+++ b/doc/source/whatsnew/v2.1.0.rst
@@ -168,6 +168,7 @@ Deprecations
- Deprecated 'broadcast_axis' keyword in :meth:`Series.align` and :meth:`DataFrame.align`, up... |
pandas-dev__pandas-54025 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/frame.py:DataFrame.dot"
],
"edited_modules": [
"pandas/core/frame.py:DataFrame"
]
},
"file": "pandas/core/frame.py"
}
] | pandas-dev/pandas | c92b3701efff16293bd110a3f06f458040b43d97 | BUG: dot on Arrow Dataframes/Series produces a Numpy object result
### 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 bu... | diff --git a/doc/source/whatsnew/v2.1.0.rst b/doc/source/whatsnew/v2.1.0.rst
index 137f2e5c12211..bcc8b1877128f 100644
--- a/doc/source/whatsnew/v2.1.0.rst
+++ b/doc/source/whatsnew/v2.1.0.rst
@@ -466,6 +466,7 @@ Numeric
- Bug in :meth:`Series.mean`, :meth:`DataFrame.mean` with object-dtype values containing strings t... |
pandas-dev__pandas-56766 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/arrays/interval.py:IntervalArray._ensure_simple_new_inputs"
],
"edited_modules": [
"pandas/core/arrays/interval.py:IntervalArray"
]
},
"file": "pandas/core/... | pandas-dev/pandas | 7d61e32bb05762c97c978ebfaf59063b81ab9db7 | BUG: 'FloatingArray' object has no attribute 'base' when constructing `pd.IntervalIndex` with `Float64` 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)... | diff --git a/doc/source/whatsnew/v2.2.0.rst b/doc/source/whatsnew/v2.2.0.rst
index 0b04a1d313a6d..8cabae95258c6 100644
--- a/doc/source/whatsnew/v2.2.0.rst
+++ b/doc/source/whatsnew/v2.2.0.rst
@@ -815,6 +815,7 @@ Interval
- Bug in :class:`Interval` ``__repr__`` not displaying UTC offsets for :class:`Timestamp` bounds.... |
pandas-dev__pandas-47585 | [
{
"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 | f7e0e68f340b62035c30c8bf1ea4cba38a39613d | Series.map and ignore_na depends on mapping type
Hi there,
according to the documentation, the parameter `ignore_na="ignore"` _propagate[s] NaN values, without passing them to the mapping correspondence._ (quote from https://pandas.pydata.org/docs/reference/api/pandas.Series.map.html)
It seems this only works if ... | diff --git a/doc/source/whatsnew/v1.5.0.rst b/doc/source/whatsnew/v1.5.0.rst
index 090fea57872c5..16fcb34fdb7d1 100644
--- a/doc/source/whatsnew/v1.5.0.rst
+++ b/doc/source/whatsnew/v1.5.0.rst
@@ -914,6 +914,7 @@ Missing
^^^^^^^
- Bug in :meth:`Series.fillna` and :meth:`DataFrame.fillna` with ``downcast`` keyword not... |
pandas-dev__pandas-56616 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/arrays/_mixins.py:NDArrayBackedExtensionArray._pad_or_backfill"
],
"edited_modules": [
"pandas/core/arrays/_mixins.py:NDArrayBackedExtensionArray"
]
},
"fil... | pandas-dev/pandas | 486b44078135a3a2d69a4d544cfec7ad3f5a94fa | Axis behaviour not consistent for df.interpolate for pad with `limit_area` passed.
The axis along which interpolation is performed is different for different methods in interpolate.
For example
```
df = pd.DataFrame(np.array([
[1, 2, 3],
[5, np.nan, np.nan],
[3, np.nan, 4],
]))
print(df.interpol... | diff --git a/doc/source/whatsnew/v2.2.0.rst b/doc/source/whatsnew/v2.2.0.rst
index 15e98cbb2a4d7..a1ecbe586483e 100644
--- a/doc/source/whatsnew/v2.2.0.rst
+++ b/doc/source/whatsnew/v2.2.0.rst
@@ -321,7 +321,7 @@ Other enhancements
- :meth:`DataFrame.apply` now allows the usage of numba (via ``engine="numba"``) to JIT... |
pandas-dev__pandas-47841 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/indexes/category.py:CategoricalIndex._concat"
],
"edited_modules": [
"pandas/core/indexes/category.py:CategoricalIndex"
]
},
"file": "pandas/core/indexes/ca... | pandas-dev/pandas | 8b72297c8799725e98cb2c6aee664325b752194f | Concatenating unordered CategoricalIndex overrides indices
A very similar bug to #20425, but with `CategoricalIndex` instead of `Categorical`:
#### Code Sample
```python
cat1 = pd.CategoricalIndex(
["a", "a",],
categories=["a", "b"],
ordered=False)
cat2 = pd.CategoricalIndex(
["b", "b"],
... | diff --git a/doc/source/whatsnew/v1.5.0.rst b/doc/source/whatsnew/v1.5.0.rst
index a1a2149da7cf6..5a95883e12fd1 100644
--- a/doc/source/whatsnew/v1.5.0.rst
+++ b/doc/source/whatsnew/v1.5.0.rst
@@ -407,7 +407,6 @@ upon serialization. (Related issue :issue:`12997`)
# Roundtripping now works
pd.read_json(a.to_js... |
pandas-dev__pandas-57173 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/interchange/column.py:PandasColumn._dtype_from_pandasdtype"
],
"edited_modules": [
"pandas/core/interchange/column.py:PandasColumn"
]
},
"file": "pandas/cor... | pandas-dev/pandas | 24f7db72a3c93a4d0cfa3763724c01ac65d412c6 | BUG: pandas int extension dtypes has no attribute byteorder
### 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 exist... | diff --git a/doc/source/whatsnew/v2.2.1.rst b/doc/source/whatsnew/v2.2.1.rst
index 9002d9af2c602..56e645d4c55db 100644
--- a/doc/source/whatsnew/v2.2.1.rst
+++ b/doc/source/whatsnew/v2.2.1.rst
@@ -30,6 +30,7 @@ Fixed regressions
Bug fixes
~~~~~~~~~
+- Fixed bug in :func:`pandas.api.interchange.from_dataframe` which... |
pandas-dev__pandas-50757 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/arrays/numeric.py:_coerce_to_data_and_mask"
],
"edited_modules": [
"pandas/core/arrays/numeric.py:_coerce_to_data_and_mask"
]
},
"file": "pandas/core/arrays... | pandas-dev/pandas | 575dc38fd816228b391ab4b8a1f4eeebd14ee867 | Int64Dtype conversion seems to casts to double first in the Series constructor
Constructing a `Series` with `dtype=Int64Dtype()` suggests that there can be an intermiediate conversion to double if the input contains `NaN`s:
```
import pandas as pd
n = 2**62+5
print(n, int(float(n)))
print(pd.Series([n, float('nan'... | diff --git a/doc/source/whatsnew/v2.0.0.rst b/doc/source/whatsnew/v2.0.0.rst
index 6c8dd2f8da938..e20a6a04ce417 100644
--- a/doc/source/whatsnew/v2.0.0.rst
+++ b/doc/source/whatsnew/v2.0.0.rst
@@ -1075,6 +1075,7 @@ ExtensionArray
- Bug in :meth:`array.PandasArray.to_numpy` raising with ``NA`` value when ``na_value`` i... |
pandas-dev__pandas-52180 | [
{
"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 | 525f1ef36d8c49ef17f102a8e45be5f054000b13 | BUG: 'NoneType' 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/whatsnew/... | diff --git a/pandas/core/arrays/arrow/array.py b/pandas/core/arrays/arrow/array.py
index 353da80e27464..6b722d800519c 100644
--- a/pandas/core/arrays/arrow/array.py
+++ b/pandas/core/arrays/arrow/array.py
@@ -2093,7 +2093,7 @@ def _dt_round(
def _dt_to_pydatetime(self):
data = self._pa_array.to_pylist()
... |
pandas-dev__pandas-58249 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/arrays/_mixins.py:NDArrayBackedExtensionArray.fillna"
],
"edited_modules": [
"pandas/core/arrays/_mixins.py:NDArrayBackedExtensionArray"
]
},
"file": "panda... | pandas-dev/pandas | d9a02be9f22c72901bb5c60f82378596d6986d23 | BUG: Implement `fillna(..., limit=x)` for EAs
Ref #57983
Currently `EA.fillna` has a limit argument but it is ignored. This was deprecated during 2.x, but that deprecation was removed in the referenced PR. We should keep and implement `limit` here.
| diff --git a/doc/source/whatsnew/v3.0.0.rst b/doc/source/whatsnew/v3.0.0.rst
index 9e7349a061295..f20bef9f023ce 100644
--- a/doc/source/whatsnew/v3.0.0.rst
+++ b/doc/source/whatsnew/v3.0.0.rst
@@ -414,7 +414,7 @@ Indexing
Missing
^^^^^^^
--
+- Bug in :meth:`DataFrame.fillna` and :meth:`Series.fillna` that would ign... |
pandas-dev__pandas-57439 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/io/json/_json.py:Parser._try_convert_data"
],
"edited_modules": [
"pandas/io/json/_json.py:Parser"
]
},
"file": "pandas/io/json/_json.py"
}
] | pandas-dev/pandas | b2b1aae329e7fa3913c082aa32cf466ce58a41e2 | BUG: read_json(line=True) returns `Index` instead of `RangeIndex` in 2.2
```python
In [2]: import pandas as pd; from io import StringIO
In [3]: data = """\
...: {"a": 1, "b": 2}
...: {"a": 3, "b": 4}"""
In [4]: pd.read_json(StringIO(data), lines=True).index
Out[4]: Index([0, 1], dtype='int64... | diff --git a/doc/source/whatsnew/v2.2.1.rst b/doc/source/whatsnew/v2.2.1.rst
index ab62a7c7598d5..d81032fafa730 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:`concat` changing long-standing behavior that always sorted th... |
pandas-dev__pandas-50056 | [
{
"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._finalize_pandas_output"
],
"edited_... | pandas-dev/pandas | 80b3feea900e97c8184761c8835cd79fd8bdd465 | BUG: read_csv with engine pyarrow doesn't handle parsing multiple 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/whatsnew/index.html) of pandas.
- [X] I have confi... | diff --git a/doc/source/whatsnew/v2.1.0.rst b/doc/source/whatsnew/v2.1.0.rst
index e1ac9e3309de7..67f5484044cd5 100644
--- a/doc/source/whatsnew/v2.1.0.rst
+++ b/doc/source/whatsnew/v2.1.0.rst
@@ -386,6 +386,7 @@ I/O
- :meth:`DataFrame.to_orc` now raising ``ValueError`` when non-default :class:`Index` is given (:issue... |
pandas-dev__pandas-48057 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/indexing.py:_iLocIndexer._setitem_with_indexer_split_path"
],
"edited_modules": [
"pandas/core/indexing.py:_iLocIndexer"
]
},
"file": "pandas/core/indexing.... | pandas-dev/pandas | 065b51c1a17c6ee472af0273c0a16dfc55e26fb5 | REGR: ValueError: setting an array element with a sequence. when assigning an array.array 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 panda... | diff --git a/doc/source/whatsnew/v1.4.4.rst b/doc/source/whatsnew/v1.4.4.rst
index 57b8fdee5888a..32b4d1f8a8012 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-58438 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/arrays/arrow/accessors.py:ListAccessor.len",
"pandas/core/arrays/arrow/accessors.py:ListAccessor.__getitem__",
"pandas/core/arrays/arrow/accessors.py:ListAccessor.flatten"
... | pandas-dev/pandas | a052307e2deb36a3548b58de8888765fb4b7bed0 | BUG: pyarrow listaccessor does not preserve indexes
### 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/v3.0.0.rst b/doc/source/whatsnew/v3.0.0.rst
index 66dafecffeb01..5eec18cd6e5b0 100644
--- a/doc/source/whatsnew/v3.0.0.rst
+++ b/doc/source/whatsnew/v3.0.0.rst
@@ -482,6 +482,7 @@ Other
- Bug in :meth:`Series.rank` that doesn't preserve missing values for nullable integers when ``na_op... |
pandas-dev__pandas-50151 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/io/formats/format.py:GenericArrayFormatter._format_strings"
],
"edited_modules": [
"pandas/io/formats/format.py:GenericArrayFormatter"
]
},
"file": "pandas/io/fo... | pandas-dev/pandas | e3143f6119c4745472d8291f72fc06121e72c699 | BUG: `DataFrame.dtypes` doesn't include backend for `string` 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/whatsnew/index.html) of pandas.
- [ ] I have confirmed... | diff --git a/doc/source/whatsnew/v2.0.0.rst b/doc/source/whatsnew/v2.0.0.rst
index e16ef0857685d..c5c2f8ece4325 100644
--- a/doc/source/whatsnew/v2.0.0.rst
+++ b/doc/source/whatsnew/v2.0.0.rst
@@ -788,6 +788,7 @@ I/O
- Improved error message in :func:`read_excel` by including the offending sheet name when an exception... |
pandas-dev__pandas-47757 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/reshape/melt.py:melt"
],
"edited_modules": [
"pandas/core/reshape/melt.py:melt"
]
},
"file": "pandas/core/reshape/melt.py"
}
] | pandas-dev/pandas | 5eca3905a171f570ac2e07ea891237e5156754f8 | BUG: wide_to_long fails/works depending on whether id variable is string/object
### 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/v1.5.0.rst b/doc/source/whatsnew/v1.5.0.rst
index 22a5f2a08362f..841b24bb06b6c 100644
--- a/doc/source/whatsnew/v1.5.0.rst
+++ b/doc/source/whatsnew/v1.5.0.rst
@@ -1019,6 +1019,7 @@ Reshaping
- Bug in :meth:`DataFrame.join` with a list when using suffixes to join DataFrames with duplic... |
pandas-dev__pandas-49738 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/io/formats/printing.py:adjoin"
],
"edited_modules": [
"pandas/io/formats/printing.py:adjoin"
]
},
"file": "pandas/io/formats/printing.py"
}
] | pandas-dev/pandas | 08f070d0ef7375e9d108dacc82329575135da4c6 | BUG: to_string(header=False) should not shift the index w.r.t. the 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 confir... | diff --git a/doc/source/whatsnew/v2.0.0.rst b/doc/source/whatsnew/v2.0.0.rst
index 4577d20a509ce..47f03910d8a86 100644
--- a/doc/source/whatsnew/v2.0.0.rst
+++ b/doc/source/whatsnew/v2.0.0.rst
@@ -694,7 +694,9 @@ I/O
- Improved error message in :func:`read_excel` by including the offending sheet name when an exception... |
pandas-dev__pandas-58172 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/frame.py:DataFrame.cummin",
"pandas/core/frame.py:DataFrame.cummax",
"pandas/core/frame.py:DataFrame.cumsum",
"pandas/core/frame.py:DataFrame.cumprod"
],
... | pandas-dev/pandas | b1525c4a3788d161653b04a71a84e44847bedc1b | ENH: Add ``numeric_only`` to ``DataFrame.cum*`` methods
### Feature Type
- [x] Adding new functionality to pandas
- [ ] Changing existing functionality in pandas
- [ ] Removing existing functionality in pandas
### Problem Description
The groupby methods all support numeric_only while regular transforma... | diff --git a/doc/source/whatsnew/v3.0.0.rst b/doc/source/whatsnew/v3.0.0.rst
index 19b448a1871c2..d189c4f4bf248 100644
--- a/doc/source/whatsnew/v3.0.0.rst
+++ b/doc/source/whatsnew/v3.0.0.rst
@@ -35,7 +35,7 @@ Other enhancements
- Support passing a :class:`Series` input to :func:`json_normalize` that retains the :cla... |
pandas-dev__pandas-51817 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/groupby/groupby.py:BaseGroupBy.__iter__"
],
"edited_modules": [
"pandas/core/groupby/groupby.py:BaseGroupBy"
]
},
"file": "pandas/core/groupby/groupby.py"
... | pandas-dev/pandas | 88f2df5f65e8ff575ee7bdbf2bfa129893573f62 | BUG: Inconsistency in `groupby` with multi-index
### 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 ... | diff --git a/doc/source/whatsnew/v2.0.0.rst b/doc/source/whatsnew/v2.0.0.rst
index 74319b0444659..ee6f8b81e3b5b 100644
--- a/doc/source/whatsnew/v2.0.0.rst
+++ b/doc/source/whatsnew/v2.0.0.rst
@@ -813,6 +813,7 @@ Deprecations
- Deprecated :meth:`DataFrame.pad` in favor of :meth:`DataFrame.ffill` (:issue:`33396`)
- De... |
pandas-dev__pandas-49536 | [
{
"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 | 7bc699fbb8dd94177d723dd637d7e99fe0eea65a | BUG: NumericIndex should not support float16 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 confirmed this bug exists on the ... | diff --git a/pandas/core/algorithms.py b/pandas/core/algorithms.py
index de9e3ace4f0ca..aa9d1c8152019 100644
--- a/pandas/core/algorithms.py
+++ b/pandas/core/algorithms.py
@@ -891,6 +891,8 @@ def value_counts(
else:
values = _ensure_arraylike(values)
keys, counts = value_counts_array... |
pandas-dev__pandas-53397 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/dtypes/cast.py:find_result_type"
],
"edited_modules": [
"pandas/core/dtypes/cast.py:find_result_type"
]
},
"file": "pandas/core/dtypes/cast.py"
},
{
... | pandas-dev/pandas | aa4922a96b4c6c34b5fc6943437d902f6cc662b1 | PERF: RangeIndex cache is written when calling df.loc[array]
### 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] I have confirmed this ... | diff --git a/doc/source/whatsnew/v2.1.0.rst b/doc/source/whatsnew/v2.1.0.rst
index c5df78f845ebc..d3f5c6b4eb89a 100644
--- a/doc/source/whatsnew/v2.1.0.rst
+++ b/doc/source/whatsnew/v2.1.0.rst
@@ -409,6 +409,7 @@ Performance improvements
- Performance improvement in various :class:`MultiIndex` set and indexing operati... |
pandas-dev__pandas-57046 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/groupby/ops.py:WrappedCythonOp._call_cython_op"
],
"edited_modules": [
"pandas/core/groupby/ops.py:WrappedCythonOp"
]
},
"file": "pandas/core/groupby/ops.py... | pandas-dev/pandas | aaa276043223821bf743e51b373148b41cbf857d | BUG: unexpected results for `idxmax` groupby aggregation on uint 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.
- [ ] I have confir... | diff --git a/doc/source/whatsnew/v2.2.1.rst b/doc/source/whatsnew/v2.2.1.rst
index d3065cdd8b624..f2d406620774b 100644
--- a/doc/source/whatsnew/v2.2.1.rst
+++ b/doc/source/whatsnew/v2.2.1.rst
@@ -14,6 +14,8 @@ including other versions of pandas.
Fixed regressions
~~~~~~~~~~~~~~~~~
- Fixed regression in :func:`merge... |
pandas-dev__pandas-50328 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/arrays/numeric.py:_coerce_to_data_and_mask"
],
"edited_modules": [
"pandas/core/arrays/numeric.py:_coerce_to_data_and_mask"
]
},
"file": "pandas/core/arrays... | pandas-dev/pandas | 8117a55618ade79272fc91edfdfdaed4d460b08e | BUG/API: constructing nullable integer and floating arrays from boolean data
From https://github.com/pandas-dev/pandas/pull/41970#discussion_r654770580, right now constructing nullable integer (and floating) arrays from boolean data has the following behavior:
```
In [2]: pd.Series([True, False, True, True], dtype=... | diff --git a/doc/source/whatsnew/v2.0.0.rst b/doc/source/whatsnew/v2.0.0.rst
index c58ee3818cbd9..1bf7fa00d07b2 100644
--- a/doc/source/whatsnew/v2.0.0.rst
+++ b/doc/source/whatsnew/v2.0.0.rst
@@ -812,6 +812,7 @@ Numeric
Conversion
^^^^^^^^^^
- Bug in constructing :class:`Series` with ``int64`` dtype from a string l... |
pandas-dev__pandas-52566 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/dtypes/cast.py:find_common_type"
],
"edited_modules": [
"pandas/core/dtypes/cast.py:find_common_type"
]
},
"file": "pandas/core/dtypes/cast.py"
}
] | pandas-dev/pandas | 656e4fd0a60b2bebaf38f2d060151a68ead0323c | BUG: Inconsistent dtype selection for row-wise(`axis=1`) operations in `pandas-2.0` for `datetime` & `timedelta` 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/i... | diff --git a/doc/source/whatsnew/v2.0.1.rst b/doc/source/whatsnew/v2.0.1.rst
index 7b4dc890da3e1..6c03bca5200b3 100644
--- a/doc/source/whatsnew/v2.0.1.rst
+++ b/doc/source/whatsnew/v2.0.1.rst
@@ -28,6 +28,7 @@ Bug fixes
- Bug in :meth:`Series.describe` not returning :class:`ArrowDtype` with ``pyarrow.float64`` type w... |
pandas-dev__pandas-49092 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/reshape/reshape.py:unstack"
],
"edited_modules": [
"pandas/core/reshape/reshape.py:unstack"
]
},
"file": "pandas/core/reshape/reshape.py"
}
] | pandas-dev/pandas | e3d0126e8af9f0a23dd6609a23817f858825e089 | BUG: pd.Series.unstack with mixed names types
### 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... | diff --git a/doc/source/whatsnew/v2.0.0.rst b/doc/source/whatsnew/v2.0.0.rst
index 508d5d8bc4cc1..77c115ed50786 100644
--- a/doc/source/whatsnew/v2.0.0.rst
+++ b/doc/source/whatsnew/v2.0.0.rst
@@ -263,6 +263,7 @@ Groupby/resample/rolling
Reshaping
^^^^^^^^^
- Bug in :meth:`DataFrame.pivot_table` raising ``TypeError`... |
pandas-dev__pandas-58301 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/indexing.py:_LocationIndexer._get_setitem_indexer",
"pandas/core/indexing.py:_LocationIndexer._ensure_listlike_indexer"
],
"edited_modules": [
"pandas/core/indexi... | pandas-dev/pandas | a99fb7d054ee0831f1c00d8bea1b54e383185802 | BUG: Setting values on `DataFrame` with multi-index `.loc(axis=0)` access adds 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/whatsnew/index.html) of pandas.
- [ ] I h... | diff --git a/doc/source/whatsnew/v3.0.0.rst b/doc/source/whatsnew/v3.0.0.rst
index 7a4f709e56104..177a38b526c6e 100644
--- a/doc/source/whatsnew/v3.0.0.rst
+++ b/doc/source/whatsnew/v3.0.0.rst
@@ -397,7 +397,7 @@ Missing
MultiIndex
^^^^^^^^^^
--
+- :func:`DataFrame.loc` with ``axis=0`` and :class:`MultiIndex` when... |
pandas-dev__pandas-48713 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/reshape/pivot.py:_add_margins"
],
"edited_modules": [
"pandas/core/reshape/pivot.py:_add_margins"
]
},
"file": "pandas/core/reshape/pivot.py"
}
] | pandas-dev/pandas | cda0f6bee2a6520729247f92eef9f722ad2487ec | BUG: `FutureWarning: Inferring datetime64[ns]` when using `pd.pivot_table(..., margins=True)` and `datetime64[ns]`
### 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/v1.5.1.rst b/doc/source/whatsnew/v1.5.1.rst
index 3f4265245bcb6..f8335fa423028 100644
--- a/doc/source/whatsnew/v1.5.1.rst
+++ b/doc/source/whatsnew/v1.5.1.rst
@@ -26,6 +26,7 @@ Fixed regressions
Bug fixes
~~~~~~~~~
- Bug in :meth:`DataFrame.to_hdf` raising ``AssertionError`` with bo... |
pandas-dev__pandas-47804 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/exchange/column.py:PandasColumn.dtype",
"pandas/core/exchange/column.py:PandasColumn._dtype_from_pandasdtype",
"pandas/core/exchange/column.py:PandasColumn.null_count",
... | pandas-dev/pandas | f7e0e68f340b62035c30c8bf1ea4cba38a39613d | BUG: Interchange `Column.null_count` is a NumPy scalar, not a builtin `int`
- [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/pandas/core/exchange/column.py b/pandas/core/exchange/column.py
index 538c1d061ef22..c2a1cfe766b22 100644
--- a/pandas/core/exchange/column.py
+++ b/pandas/core/exchange/column.py
@@ -96,7 +96,7 @@ def offset(self) -> int:
return 0
@cache_readonly
- def dtype(self):
+ def dtype(self) ... |
pandas-dev__pandas-49446 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/dtypes/cast.py:maybe_infer_to_datetimelike"
],
"edited_modules": [
"pandas/core/dtypes/cast.py:maybe_infer_to_datetimelike"
]
},
"file": "pandas/core/dtypes... | pandas-dev/pandas | 76923d7b58d8f25329e779a40b87e2b6959f9cea | API: pd.Series([py_date, py_datetime]) vs pd.Index([py_date, py_datetime])
```python
ts = pd.Timestamp.now()
vals= [ts.date(), ts.to_pydatetime()]
ser = pd.Series(vals) # <- dt64 dtype
idx = pd.Index(vals) # <- object dtype
```
Index uses lib.maybe_convert_objects for inference while Series uses infer_dat... | diff --git a/doc/source/whatsnew/v2.0.0.rst b/doc/source/whatsnew/v2.0.0.rst
index 0ab75355291f6..96c15d4626142 100644
--- a/doc/source/whatsnew/v2.0.0.rst
+++ b/doc/source/whatsnew/v2.0.0.rst
@@ -142,6 +142,7 @@ Other API changes
- The ``other`` argument in :meth:`DataFrame.mask` and :meth:`Series.mask` now defaults ... |
pandas-dev__pandas-51967 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/plotting/_matplotlib/core.py:MPLPlot._validate_color_args"
],
"edited_modules": [
"pandas/plotting/_matplotlib/core.py:MPLPlot"
]
},
"file": "pandas/plotting/_ma... | pandas-dev/pandas | 5053b563e638398b6593531a67ec91cc44f3b969 | BUG: Series.plot doesn't allow color=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.
- [ ] I have confirmed this bug exists on the [ma... | diff --git a/doc/source/whatsnew/v2.1.0.rst b/doc/source/whatsnew/v2.1.0.rst
index 410a324be829e..2434da4123e9c 100644
--- a/doc/source/whatsnew/v2.1.0.rst
+++ b/doc/source/whatsnew/v2.1.0.rst
@@ -195,7 +195,7 @@ Period
Plotting
^^^^^^^^
--
+- Bug in :meth:`Series.plot` when invoked with ``color=None`` (:issue:`519... |
pandas-dev__pandas-50322 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/arrays/masked.py:BaseMaskedArray._propagate_mask"
],
"edited_modules": [
"pandas/core/arrays/masked.py:BaseMaskedArray"
]
},
"file": "pandas/core/arrays/mas... | pandas-dev/pandas | 1613f26ff0ec75e30828996fd9ec3f9dd5119ca6 | BUG: Dividing Int64 and float64 results in a mix of null-types
- [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.
---
**Note**: Please re... | diff --git a/doc/source/whatsnew/v2.0.0.rst b/doc/source/whatsnew/v2.0.0.rst
index cbad169fe4d56..7553895f80cc9 100644
--- a/doc/source/whatsnew/v2.0.0.rst
+++ b/doc/source/whatsnew/v2.0.0.rst
@@ -804,6 +804,7 @@ Timezones
Numeric
^^^^^^^
- Bug in :meth:`DataFrame.add` cannot apply ufunc when inputs contain mixed Da... |
pandas-dev__pandas-54189 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/plotting/_matplotlib/core.py:ScatterPlot._make_plot"
],
"edited_modules": [
"pandas/plotting/_matplotlib/core.py:ScatterPlot"
]
},
"file": "pandas/plotting/_matp... | pandas-dev/pandas | 6501fa56ef681e1a5e1ae821383fd3c9d6da2577 | BUG: df.plot.scatter may cause UserWarning: No data for colormapping provided via 'c'. Parameters 'cmap' will be ignored
### 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/whats... | diff --git a/doc/source/whatsnew/v2.1.0.rst b/doc/source/whatsnew/v2.1.0.rst
index 839870cb18a0b..7024e790265ce 100644
--- a/doc/source/whatsnew/v2.1.0.rst
+++ b/doc/source/whatsnew/v2.1.0.rst
@@ -547,6 +547,7 @@ Period
Plotting
^^^^^^^^
- Bug in :meth:`Series.plot` when invoked with ``color=None`` (:issue:`51953`)
... |
pandas-dev__pandas-50170 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/indexes/base.py:Index._maybe_cast_slice_bound"
],
"edited_modules": [
"pandas/core/indexes/base.py:Index"
]
},
"file": "pandas/core/indexes/base.py"
}
] | pandas-dev/pandas | 70eef55e438823697515e834ee4ac350bdb0aaa7 | BUG: `Series` slicing can fail for extension array `Index`
### 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/v2.0.0.rst b/doc/source/whatsnew/v2.0.0.rst
index cbad169fe4d56..d3710b69dd4c1 100644
--- a/doc/source/whatsnew/v2.0.0.rst
+++ b/doc/source/whatsnew/v2.0.0.rst
@@ -833,6 +833,7 @@ Indexing
^^^^^^^^
- Bug in :meth:`DataFrame.reindex` filling with wrong values when indexing columns and ... |
pandas-dev__pandas-48106 | [
{
"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 | 8b72297c8799725e98cb2c6aee664325b752194f | REGR: setting numeric value in Categorical Series with enlargement raise internal error
With the last release, we have this behaviour (when setting with enlargement, we cast the categorical dtype to object):
```
In [1]: pd.__version__
Out[1]: '1.4.3'
In [2]: s = pd.Series(["a", "b", "c"], dtype="category")
I... | diff --git a/pandas/core/dtypes/cast.py b/pandas/core/dtypes/cast.py
index 5340bc6b590c4..3dfc544273a64 100644
--- a/pandas/core/dtypes/cast.py
+++ b/pandas/core/dtypes/cast.py
@@ -591,6 +591,12 @@ def _maybe_promote(dtype: np.dtype, fill_value=np.nan):
fv = na_value_for_dtype(dtype)
return dtype, fv
... |
pandas-dev__pandas-53511 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/dtypes/dtypes.py:PeriodDtype.__new__"
],
"edited_modules": [
"pandas/core/dtypes/dtypes.py:PeriodDtype"
]
},
"file": "pandas/core/dtypes/dtypes.py"
},
{... | pandas-dev/pandas | 67209ee117050ef47e3c5e0174014126a2d7c1ee | DEPR: Period[B]
### 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 branch](https://pandas.pydata... | diff --git a/doc/source/whatsnew/v2.1.0.rst b/doc/source/whatsnew/v2.1.0.rst
index bc187361493c0..e9492b45c3be0 100644
--- a/doc/source/whatsnew/v2.1.0.rst
+++ b/doc/source/whatsnew/v2.1.0.rst
@@ -348,6 +348,7 @@ Deprecations
- Deprecated unused "closed" and "normalize" keywords in the :class:`DatetimeIndex` construct... |
pandas-dev__pandas-51355 | [
{
"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 | 9764f3dbf0173892aba5da4b122851ded43c09bc | BUG: iterparse on read_xml overwrites nested child elements
### 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 exis... | diff --git a/doc/source/whatsnew/v2.0.0.rst b/doc/source/whatsnew/v2.0.0.rst
index 778169b0dbeb4..b76655bc134b5 100644
--- a/doc/source/whatsnew/v2.0.0.rst
+++ b/doc/source/whatsnew/v2.0.0.rst
@@ -1304,6 +1304,7 @@ I/O
- Bug in :meth:`DataFrame.to_dict` not converting ``NA`` to ``None`` (:issue:`50795`)
- Bug in :met... |
pandas-dev__pandas-48966 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/generic.py:NDFrame.compare"
],
"edited_modules": [
"pandas/core/generic.py:NDFrame"
]
},
"file": "pandas/core/generic.py"
}
] | pandas-dev/pandas | c671f6ca3dba3f4e6f3077c00c1ff773d1ef7f45 | BUG: pd.compare does not recognize differences with the nullable Int64 data type
### 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/doc/source/whatsnew/v2.0.0.rst b/doc/source/whatsnew/v2.0.0.rst
index 9d1e0c7485092..475583e5277a7 100644
--- a/doc/source/whatsnew/v2.0.0.rst
+++ b/doc/source/whatsnew/v2.0.0.rst
@@ -218,6 +218,8 @@ Indexing
- Bug in :meth:`DataFrame.reindex` filling with wrong values when indexing columns and index for ... |
pandas-dev__pandas-58767 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/_numba/executor.py:generate_apply_looper"
],
"edited_modules": [
"pandas/core/_numba/executor.py:generate_apply_looper"
]
},
"file": "pandas/core/_numba/exe... | pandas-dev/pandas | a3e751c6b435575de96c4a83bf67797e4a989771 | BUG: No kwargs in df.apply(raw=True, engine="numba")
### 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 th... | diff --git a/doc/source/whatsnew/v3.0.0.rst b/doc/source/whatsnew/v3.0.0.rst
index 731406394ed46..7cb6af877be42 100644
--- a/doc/source/whatsnew/v3.0.0.rst
+++ b/doc/source/whatsnew/v3.0.0.rst
@@ -498,6 +498,7 @@ Other
- Bug in :class:`DataFrame` when passing a ``dict`` with a NA scalar and ``columns`` that would alwa... |
pandas-dev__pandas-51585 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/indexing.py:_LocationIndexer._maybe_mask_setitem_value",
"pandas/core/indexing.py:_iLocIndexer._align_series"
],
"edited_modules": [
"pandas/core/indexing.py:_Loc... | pandas-dev/pandas | 887d2c495d88ec403bb9ec4b6c04b44d09ec06e6 | BUG: loc setitem fails with shape mismatch
### 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 br... | diff --git a/doc/source/whatsnew/v2.0.0.rst b/doc/source/whatsnew/v2.0.0.rst
index bdbde438217b9..a924b98237dbd 100644
--- a/doc/source/whatsnew/v2.0.0.rst
+++ b/doc/source/whatsnew/v2.0.0.rst
@@ -1273,6 +1273,7 @@ Indexing
- Bug in :meth:`DataFrame.sort_values` where ``None`` was not returned when ``by`` is empty lis... |
pandas-dev__pandas-57089 | [
{
"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 | b5a963c872748801faa7ff67b8d766f7043bb1c1 | BUG: df.str.match(pattern) fails with pd.options.future.infer_string = True with re.compile()
### 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/v2.2.1.rst b/doc/source/whatsnew/v2.2.1.rst
index 23da4a7f6ab25..5d60eae8f5ed0 100644
--- a/doc/source/whatsnew/v2.2.1.rst
+++ b/doc/source/whatsnew/v2.2.1.rst
@@ -15,6 +15,7 @@ Fixed regressions
~~~~~~~~~~~~~~~~~
- Fixed performance regression in :meth:`Series.combine_first` (:issue:... |
pandas-dev__pandas-56332 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/arrays/arrow/array.py:ArrowExtensionArray._str_split",
"pandas/core/arrays/arrow/array.py:ArrowExtensionArray._str_rsplit"
],
"edited_modules": [
"pandas/core/arr... | pandas-dev/pandas | daa9cdb1c70932afd6d5146c98b48bd95b1c5dd1 | BUG: `.str.split()` fails with pyarrow strings
### 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 [mai... | diff --git a/doc/source/whatsnew/v2.1.4.rst b/doc/source/whatsnew/v2.1.4.rst
index 4ef6a2463ee16..927c0ee4f532d 100644
--- a/doc/source/whatsnew/v2.1.4.rst
+++ b/doc/source/whatsnew/v2.1.4.rst
@@ -24,11 +24,12 @@ Bug fixes
- Bug in :class:`Series` constructor raising DeprecationWarning when ``index`` is a list of :cla... |
pandas-dev__pandas-58250 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/io/parsers/c_parser_wrapper.py:CParserWrapper.read",
"pandas/io/parsers/c_parser_wrapper.py:_concatenate_chunks"
],
"edited_modules": [
"pandas/io/parsers/c_parser_wra... | pandas-dev/pandas | f86f9f2239fa80dfa636fb71cc919050e607473a | ENH: DtypeWarning message enhancement
### Feature Type
- [ ] Adding new functionality to pandas
- [X] Changing existing functionality in pandas
- [ ] Removing existing functionality in pandas
### Problem Description
The current DtypeWarning message:
`DtypeWarning: Columns (15,19) have mixed types. Specify dtype ... | diff --git a/doc/source/whatsnew/v3.0.0.rst b/doc/source/whatsnew/v3.0.0.rst
index 177a38b526c6e..42416f70d9ca5 100644
--- a/doc/source/whatsnew/v3.0.0.rst
+++ b/doc/source/whatsnew/v3.0.0.rst
@@ -37,6 +37,7 @@ Other enhancements
- Support reading value labels from Stata 108-format (Stata 6) and earlier files (:issue:... |
pandas-dev__pandas-52177 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/indexes/multi.py:MultiIndex.set_levels"
],
"edited_modules": [
"pandas/core/indexes/multi.py:MultiIndex"
]
},
"file": "pandas/core/indexes/multi.py"
}
] | pandas-dev/pandas | 525f1ef36d8c49ef17f102a8e45be5f054000b13 | BUG: Using set_levels with a Categorical on a mutliindex isn't preserving the 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 ... | diff --git a/doc/source/whatsnew/v2.1.0.rst b/doc/source/whatsnew/v2.1.0.rst
index 64c7503849de2..1f5c3c88c5ff5 100644
--- a/doc/source/whatsnew/v2.1.0.rst
+++ b/doc/source/whatsnew/v2.1.0.rst
@@ -200,7 +200,7 @@ Missing
MultiIndex
^^^^^^^^^^
--
+- Bug in :meth:`MultiIndex.set_levels` not preserving dtypes for :cla... |
pandas-dev__pandas-55314 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/generic.py:NDFrame.__finalize__"
],
"edited_modules": [
"pandas/core/generic.py:NDFrame"
]
},
"file": "pandas/core/generic.py"
}
] | pandas-dev/pandas | 1c1bb854cce61a8d653c468bcce70db84ac07cf9 | BUG: `copy.deepcopy()` doesn't deepcopy the metadata in `.attrs`
### 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 7a177344a42c7..9a524db89de85 100644
--- a/doc/source/whatsnew/v2.2.0.rst
+++ b/doc/source/whatsnew/v2.2.0.rst
@@ -74,12 +74,12 @@ enhancement2
Other enhancements
^^^^^^^^^^^^^^^^^^
+- :attr:`Series.attrs` / :attr:`DataFrame.attrs` no... |
pandas-dev__pandas-50505 | [
{
"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 | 18c43651b0497b5e93fd02e4f0bf6d254a25c316 | ENH: Cast string dtype to nullable numeric types in to_numeric
https://github.com/pandas-dev/pandas/pull/37268 fixed a bug so that nullable string dtype can now be cast to numeric from "number-like" strings and NA, however the output dtype is currently float64. Better would be for this to cast to either nullable Int64 ... | diff --git a/doc/source/whatsnew/v2.0.0.rst b/doc/source/whatsnew/v2.0.0.rst
index 5b725eb4d2a98..43571b3879622 100644
--- a/doc/source/whatsnew/v2.0.0.rst
+++ b/doc/source/whatsnew/v2.0.0.rst
@@ -44,6 +44,7 @@ The ``use_nullable_dtypes`` keyword argument has been expanded to the following
* :func:`read_sql_query`
* ... |
pandas-dev__pandas-48824 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/arrays/arrow/array.py:ArrowExtensionArray.factorize"
],
"edited_modules": [
"pandas/core/arrays/arrow/array.py:ArrowExtensionArray"
]
},
"file": "pandas/cor... | pandas-dev/pandas | fba672389b74ca4afece56040ae079a1f2b71544 | BUG: pandas 1.5 fails to groupby on (nullable) Int64 column with dropna=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 confir... | diff --git a/doc/source/whatsnew/v1.5.1.rst b/doc/source/whatsnew/v1.5.1.rst
index f58e10a701740..ab80bdb9ed782 100644
--- a/doc/source/whatsnew/v1.5.1.rst
+++ b/doc/source/whatsnew/v1.5.1.rst
@@ -83,7 +83,7 @@ Fixed regressions
- Fixed :meth:`.DataFrameGroupBy.size` not returning a Series when ``axis=1`` (:issue:`487... |
pandas-dev__pandas-48853 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/indexing.py:_iLocIndexer._setitem_single_column"
],
"edited_modules": [
"pandas/core/indexing.py:_iLocIndexer"
]
},
"file": "pandas/core/indexing.py"
}
] | pandas-dev/pandas | 336896907748389e2cd0d57504508475d425348e | BUG: df.fillna(dict, inplace=True) triggers FutureWarning in 1.5.0rc0 when DataFrame is empty
### 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/v1.5.1.rst b/doc/source/whatsnew/v1.5.1.rst
index ee66f2f649bc2..54febe3aecd71 100644
--- a/doc/source/whatsnew/v1.5.1.rst
+++ b/doc/source/whatsnew/v1.5.1.rst
@@ -72,6 +72,7 @@ Fixed regressions
- Fixed Regression in :meth:`Series.__setitem__` casting ``None`` to ``NaN`` for object dt... |
pandas-dev__pandas-50572 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/dtypes/common.py:is_numeric_dtype"
],
"edited_modules": [
"pandas/core/dtypes/common.py:is_numeric_dtype"
]
},
"file": "pandas/core/dtypes/common.py"
}
] | pandas-dev/pandas | 3a0db109390ddf9ab331cc86e63449c7445aa8a7 | BUG: `is_numeric_dtype` returns False for numeric `ArrowDtypes`
### 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... | diff --git a/doc/source/whatsnew/v2.0.0.rst b/doc/source/whatsnew/v2.0.0.rst
index ea6a832d25058..8182af3f4bca2 100644
--- a/doc/source/whatsnew/v2.0.0.rst
+++ b/doc/source/whatsnew/v2.0.0.rst
@@ -983,6 +983,7 @@ ExtensionArray
- Bug in :meth:`Series.round` for pyarrow-backed dtypes raising ``AttributeError`` (:issue:... |
pandas-dev__pandas-50148 | [
{
"changes": {
"added_entities": [
"asv_bench/benchmarks/indexing.py:Setitem.setup",
"asv_bench/benchmarks/indexing.py:Setitem.time_setitem",
"asv_bench/benchmarks/indexing.py:Setitem.time_setitem_list"
],
"added_modules": [
"asv_bench/benchmarks/indexing.py:Set... | pandas-dev/pandas | 18c43651b0497b5e93fd02e4f0bf6d254a25c316 | PERF: performance regression in assigning value to df[col_name]
### 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.
- [ ] I have confirmed this iss... | diff --git a/asv_bench/benchmarks/indexing.py b/asv_bench/benchmarks/indexing.py
index 65ea14da08c79..a5bba8e5592c7 100644
--- a/asv_bench/benchmarks/indexing.py
+++ b/asv_bench/benchmarks/indexing.py
@@ -476,6 +476,19 @@ def time_assign_list_of_columns_concat(self):
concat([self.df, df], axis=1)
+class Se... |
pandas-dev__pandas-48149 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/indexes/base.py:Index.__array_ufunc__"
],
"edited_modules": [
"pandas/core/indexes/base.py:Index"
]
},
"file": "pandas/core/indexes/base.py"
}
] | pandas-dev/pandas | cf88cc14787bd4d1c769e269ec5f0469b2eea820 | BUG: Pandas Index fails with `bitwise` ufuncs
### 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 main ... | diff --git a/doc/source/whatsnew/v1.4.4.rst b/doc/source/whatsnew/v1.4.4.rst
index 3414082581b80..2afcdf62a7ef1 100644
--- a/doc/source/whatsnew/v1.4.4.rst
+++ b/doc/source/whatsnew/v1.4.4.rst
@@ -16,6 +16,7 @@ Fixed regressions
~~~~~~~~~~~~~~~~~
- Fixed regression in taking NULL :class:`objects` from a :class:`DataF... |
pandas-dev__pandas-47643 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/frame.py:DataFrame.compare"
],
"edited_modules": [
"pandas/core/frame.py:DataFrame"
]
},
"file": "pandas/core/frame.py"
},
{
"changes": {
"add... | pandas-dev/pandas | 0b8d8bbcc174dc61c945599db4c28a39ee1853d0 | ENH: add suffixes argument to DataFrame.compare
#### Is your feature request related to a problem?
It would be convenient to choose other suffixes in `DataFrame.compare` than `self, other`
#### Describe the solution you'd like
Add argument `suffixes` so users can specify them.
#### API breaking implications... | diff --git a/doc/source/whatsnew/v1.5.0.rst b/doc/source/whatsnew/v1.5.0.rst
index b081f743f9b0b..22a5f2a08362f 100644
--- a/doc/source/whatsnew/v1.5.0.rst
+++ b/doc/source/whatsnew/v1.5.0.rst
@@ -278,6 +278,7 @@ Other enhancements
- :meth:`DatetimeIndex.astype` now supports casting timezone-naive indexes to ``datetim... |
pandas-dev__pandas-50955 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/frame.py:DataFrame.value_counts"
],
"edited_modules": [
"pandas/core/frame.py:DataFrame"
]
},
"file": "pandas/core/frame.py"
}
] | pandas-dev/pandas | 450a1f04b7707ceb983a331768933861c09b3223 | DOC: DataFrame.count_values supports single label
### Pandas version checks
- [X] I have checked that the issue still exists on the latest versions of the docs on `main` [here](https://pandas.pydata.org/docs/dev/)
### Location of the documentation
https://pandas.pydata.org/docs/reference/api/pandas.DataFrame.value_... | diff --git a/doc/source/whatsnew/v2.0.0.rst b/doc/source/whatsnew/v2.0.0.rst
index ac7d30310be9e..f63563472f1f2 100644
--- a/doc/source/whatsnew/v2.0.0.rst
+++ b/doc/source/whatsnew/v2.0.0.rst
@@ -1088,6 +1088,7 @@ Removal of prior version deprecations/changes
- Arguments after ``expr`` in :meth:`DataFrame.eval` and :... |
pandas-dev__pandas-48579 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/core/groupby/ops.py:BaseGrouper.apply"
],
"edited_modules": [
"pandas/core/groupby/ops.py:BaseGrouper"
]
},
"file": "pandas/core/groupby/ops.py"
}
] | pandas-dev/pandas | b3552c54be2d49d52e6c0ae90db23ccb13bbfe0d | BUG: Pandas 1.4.x - calling groupBy(...).apply(func) on an empty dataframe invokes func
As of `pandas 1.4.0`, if you call `df.groupby(['some_column']).apply(_func)` on an empty dataframe, the `func` will be called with an empty group dataframe, causing the function to potentially error out unless it specifically checks... | diff --git a/doc/source/whatsnew/v1.5.1.rst b/doc/source/whatsnew/v1.5.1.rst
index ef41b749c89e6..3157723167020 100644
--- a/doc/source/whatsnew/v1.5.1.rst
+++ b/doc/source/whatsnew/v1.5.1.rst
@@ -77,6 +77,7 @@ Fixed regressions
- Fixed performance regression in :func:`factorize` when ``na_sentinel`` is not ``None`` a... |
pandas-dev__pandas-47273 | [
{
"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 | 6db95e79297a4dcefff53ca151324949b0c956c3 | BUG: DataFrame eval will not work with 'Timestamp' column name
###
- [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 mas... | diff --git a/doc/source/whatsnew/v1.5.0.rst b/doc/source/whatsnew/v1.5.0.rst
index a0d33cb513722..1379a13f0e42a 100644
--- a/doc/source/whatsnew/v1.5.0.rst
+++ b/doc/source/whatsnew/v1.5.0.rst
@@ -932,6 +932,8 @@ Conversion
- Bug in :meth:`DataFrame.to_dict` for ``orient="list"`` or ``orient="index"`` was not returnin... |
pandas-dev__pandas-55058 | [
{
"changes": {
"added_entities": [
"pandas/core/arrays/masked.py:BaseMaskedArray.map"
],
"added_modules": null,
"edited_entities": [
"pandas/core/arrays/masked.py:BaseMaskedArray.to_numpy",
"pandas/core/arrays/masked.py:BaseMaskedArray.tolist"
],
"edit... | pandas-dev/pandas | 0e8174fbb89972690ea4e825d727d2ddf7653c73 | ENH: support casting Int arrays with nulls to np.float?
xref https://github.com/numpy/numpy/issues/17659
> I would expect numpy to automatically convert such arrays into a float type and fill with np.nan. However, for some reason it converts it to object:
>
> `pd.DataFrame({'col': [1, np.nan, 3]}).astype('UInt8')... | diff --git a/doc/source/whatsnew/v2.2.0.rst b/doc/source/whatsnew/v2.2.0.rst
index 8cb4b3f24d435..3b363d38e18cb 100644
--- a/doc/source/whatsnew/v2.2.0.rst
+++ b/doc/source/whatsnew/v2.2.0.rst
@@ -105,6 +105,37 @@ For a full list of ADBC drivers and their development status, see the `ADBC Driv
Implementation Status <h... |
pandas-dev__pandas-53809 | [
{
"changes": {
"added_entities": null,
"added_modules": null,
"edited_entities": [
"pandas/io/xml.py:_parse"
],
"edited_modules": [
"pandas/io/xml.py:_parse"
]
},
"file": "pandas/io/xml.py"
}
] | pandas-dev/pandas | 457690995ccbfc5b8eee80a0818d62070d078bcf | [DEPR]: Remove literal string/bytes input from `read_excel`, `read_html`, and `read_xml`
Following on from #52271 and #53409 (and to close out #5924), here is the state of play for IO routines in terms of what they accept as input
- `read_clipboard`: doesn't take input argument
- `read_csv`: pathlike, BinaryIO, St... | diff --git a/doc/source/user_guide/io.rst b/doc/source/user_guide/io.rst
index ec0e7d0636b07..4d4b9e086e9e5 100644
--- a/doc/source/user_guide/io.rst
+++ b/doc/source/user_guide/io.rst
@@ -2919,6 +2919,7 @@ Read an XML string:
.. ipython:: python
+ from io import StringIO
xml = """<?xml version="1.0" encodi... |
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