id int64 | number int64 | title string | state string | created_at timestamp[s] | updated_at timestamp[s] | closed_at timestamp[s] | html_url string | is_pull_request bool | pull_request_url string | pull_request_html_url string | user_login string | comments_count int64 | body string | labels list | reactions_plus1 int64 | reactions_minus1 int64 | reactions_laugh int64 | reactions_hooray int64 | reactions_confused int64 | reactions_heart int64 | reactions_rocket int64 | reactions_eyes int64 | comments list |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
3,160,653,803 | 61,678 | ENH #61033: Add coalesce_keys option to DataFrame.join for preserving join keys | closed | 2025-06-19T15:06:26 | 2025-07-28T17:25:52 | 2025-07-28T17:25:52 | https://github.com/pandas-dev/pandas/pull/61678 | true | https://api.github.com/repos/pandas-dev/pandas/pulls/61678 | https://github.com/pandas-dev/pandas/pull/61678 | rit4rosa | 3 | Add coalesce_keys option to DataFrame.join for preserving join keys
This adds a coalesce_keys keyword to DataFrame.join to allow preservation
of both join key columns (id and id_right), instead of automatically
coalescing them into a single column.
This is especially useful in full outer joins, where retaining ... | [
"Enhancement",
"Reshaping",
"Stale"
] | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | [
"closes #61033",
"This pull request is stale because it has been open for thirty days with no activity. Please [update](https://pandas.pydata.org/pandas-docs/stable/development/contributing.html#updating-your-pull-request) and respond to this comment if you're still interested in working on this.",
"Thanks for ... |
3,157,190,784 | 61,677 | Incorrect rolling std() results on very large DataFrames | open | 2025-06-18T14:50:29 | 2025-07-18T20:45:55 | null | https://github.com/pandas-dev/pandas/issues/61677 | true | null | null | ZuotaoZhang | 0 | I apologize that I cannot provide a reproducible example, as this issue was discovered while working with an extremely large DataFrame.
I've observed that when performing rolling(window).std() on a DataFrame with tens of millions of rows, the calculations produce incorrect results. For example:
- With window=40, the ... | [
"Window",
"Reduction Operations"
] | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | [] |
3,157,064,231 | 61,676 | BUG: Implicit conversion to float64 with isin() | open | 2025-06-18T14:15:38 | 2025-07-21T21:47:29 | null | https://github.com/pandas-dev/pandas/issues/61676 | true | null | null | pbrochart | 1 | ### 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.org/docs/dev/ge... | [
"Bug",
"Dtype Conversions",
"isin"
] | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | [
"take"
] |
3,155,881,737 | 61,675 | BUG: DataFrame.join(other) raises InvalidIndexError if column index is CategoricalIndex | open | 2025-06-18T07:59:14 | 2025-08-21T07:19:46 | null | https://github.com/pandas-dev/pandas/issues/61675 | true | null | null | tvoipio | 3 | ### 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 branch](https://pandas.pydata.org/docs/dev/ge... | [
"Bug",
"Reshaping",
"Regression",
"Categorical"
] | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | [
"Thanks for the report; I'll mark as a regression for now, but it seems likely the 2.x series will not see any more releases.",
"i can't reproduce this in 2.3.0",
"I can reproduce on 2.3.x."
] |
3,154,076,715 | 61,674 | BUG: fix: `list` as index item does not raise | closed | 2025-06-17T16:21:37 | 2025-07-28T17:25:29 | 2025-07-28T17:25:29 | https://github.com/pandas-dev/pandas/pull/61674 | true | https://api.github.com/repos/pandas-dev/pandas/pulls/61674 | https://github.com/pandas-dev/pandas/pull/61674 | Andre-Andreati | 2 | - [X] closes #60925
- [X] [Tests added and passed](https://pandas.pydata.org/pandas-docs/dev/development/contributing_codebase.html#writing-tests) if fixing a bug or adding a new feature
- [X] All [code checks passed](https://pandas.pydata.org/pandas-docs/dev/development/contributing_codebase.html#pre-commit).
- [ ]... | [
"Bug",
"Index",
"Stale"
] | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | [
"This pull request is stale because it has been open for thirty days with no activity. Please [update](https://pandas.pydata.org/pandas-docs/stable/development/contributing.html#updating-your-pull-request) and respond to this comment if you're still interested in working on this.",
"Thanks for the pull request, b... |
3,153,132,080 | 61,673 | DOC: Document two-issue limit for `take` command in contributing guide #61626 | closed | 2025-06-17T11:22:47 | 2025-06-22T17:34:35 | 2025-06-22T11:23:04 | https://github.com/pandas-dev/pandas/pull/61673 | true | https://api.github.com/repos/pandas-dev/pandas/pulls/61673 | https://github.com/pandas-dev/pandas/pull/61673 | SnehaDeshmukh28 | 3 | - [ ] closes #61626
- [ ] [Tests added and passed](https://pandas.pydata.org/pandas-docs/dev/development/contributing_codebase.html#writing-tests) if fixing a bug or adding a new feature
- [ ] All [code checks passed](https://pandas.pydata.org/pandas-docs/dev/development/contributing_codebase.html#pre-commit).
- [ ... | [] | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | [
"Hi team! 👋\r\n\r\nJust wanted to kindly follow up — it's been a few days, and I wanted to check if there's anything I should improve or update in this PR.\r\n\r\nWould really love your feedback and guidance. Thanks for the incredible work you all do maintaining pandas! 🙏\r\n\r\ncc: @mroeschke @rhshadrach @noatam... |
3,151,625,198 | 61,672 | BUG: Index allows one item to be `list` among others that are not | closed | 2025-06-16T23:52:06 | 2025-06-17T02:36:44 | 2025-06-17T02:36:43 | https://github.com/pandas-dev/pandas/pull/61672 | true | https://api.github.com/repos/pandas-dev/pandas/pulls/61672 | https://github.com/pandas-dev/pandas/pull/61672 | Andre-Andreati | 0 | - [X] closes #60925
- [X] [Tests added and passed](https://pandas.pydata.org/pandas-docs/dev/development/contributing_codebase.html#writing-tests) if fixing a bug or adding a new feature
- [X] All [code checks passed](https://pandas.pydata.org/pandas-docs/dev/development/contributing_codebase.html#pre-commit).
- [ ]... | [] | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | [] |
3,150,470,239 | 61,671 | BUG: np.nan to datetime assertionerror when too large datetime given | open | 2025-06-16T15:43:04 | 2025-06-24T00:45:15 | null | https://github.com/pandas-dev/pandas/issues/61671 | true | null | null | dnallicus | 4 | ### 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 branch](https://pandas.pydata.org/docs/dev/ge... | [
"Bug",
"Datetime",
"Needs Triage"
] | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | [
"take",
"I looked into this and confirmed that `.to_datetime64()` on `Timestamp(datetime(3000, 1, 1))` returns a `datetime64[us]`, and casting that to `datetime64[ns]` silently overflows, resulting in a corrupted timestamp like `1830-11-23T00:50:52`. Since no error is raised, `infer_dtype_from_scalar` infers an i... |
3,150,092,764 | 61,670 | CLN: Use dedup_names for column name mangling in Python parser (#50371) | open | 2025-06-16T13:45:36 | 2025-08-21T02:22:55 | null | https://github.com/pandas-dev/pandas/pull/61670 | true | https://api.github.com/repos/pandas-dev/pandas/pulls/61670 | https://github.com/pandas-dev/pandas/pull/61670 | Veneel77 | 5 | ### What does this PR do?
Replaces manual deduplication logic in the Python parser with the `dedup_names` utility from `pandas.io.common`.
### Why is this important?
- Improves consistency and maintainability
- Simplifies internal logic
- Addresses issue #50371
---
### Checklist
- [x] closes #50371
-... | [
"Clean",
"Stale"
] | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | [
"Hi maintainers 👋\r\n\r\nThis PR replaces manual deduplication logic with the shared `dedup_names` utility. Parser-related tests pass as expected ✅\r\n\r\nSome CI checks failed due to network-based tests (`test_network.py`, `test_url`, etc.), which appear unrelated to my change and are known to be flaky or environ... |
3,149,917,098 | 61,669 | ENH: Switch to trusted publishing for package upload to PyPI in CI | open | 2025-06-16T12:56:12 | 2025-07-19T09:53:57 | null | https://github.com/pandas-dev/pandas/issues/61669 | true | null | null | EpicWink | 1 | ### Feature Type
- [ ] Adding new functionality to pandas
- [ ] Changing existing functionality in pandas
- [ ] Removing existing functionality in pandas
### Problem Description
I would like to audit the `pandas` wheel easily.
### Feature Description
Trusted publishing (with attestations) means I can know for c... | [
"Enhancement",
"Build",
"CI"
] | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | [
"Hi all - if nobody is on this yet, I’d like to take it. I’ll open a PR shortly."
] |
3,149,162,296 | 61,668 | Bump pypa/cibuildwheel from 2.23.3 to 3.0.0 | closed | 2025-06-16T09:05:45 | 2025-07-07T10:46:20 | 2025-07-07T10:46:18 | https://github.com/pandas-dev/pandas/pull/61668 | true | https://api.github.com/repos/pandas-dev/pandas/pulls/61668 | https://github.com/pandas-dev/pandas/pull/61668 | dependabot[bot] | 1 | Bumps [pypa/cibuildwheel](https://github.com/pypa/cibuildwheel) from 2.23.3 to 3.0.0.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a href="https://github.com/pypa/cibuildwheel/releases">pypa/cibuildwheel's releases</a>.</em></p>
<blockquote>
<h2>v3.0.0</h2>
<p>See <a href="https://github.com/henryiii... | [
"Build",
"CI",
"Dependencies"
] | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | [
"Superseded by #61796."
] |
3,149,140,633 | 61,667 | BUG: pd.read_sql is incorrectly reading long int when connecting to Teradata | open | 2025-06-16T08:59:08 | 2025-07-16T02:40:11 | null | https://github.com/pandas-dev/pandas/issues/61667 | true | null | null | IzidoroBaltazar | 0 | ### Pandas version checks
- [x] I have checked that this issue has not already been reported.
- [x] I have confirmed this bug exists on the [latest version](https://pandas.pydata.org/docs/whatsnew/index.html) of pandas.
- [ ] I have confirmed this bug exists on the [main branch](https://pandas.pydata.org/docs/dev/ge... | [
"Bug",
"IO SQL",
"Needs Triage"
] | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | [] |
3,148,581,354 | 61,666 | ENH: Support for Orthodox Easter | closed | 2025-06-16T05:19:20 | 2025-06-16T19:39:33 | 2025-06-16T19:39:27 | https://github.com/pandas-dev/pandas/pull/61666 | true | https://api.github.com/repos/pandas-dev/pandas/pulls/61666 | https://github.com/pandas-dev/pandas/pull/61666 | w3stling | 1 | - [X] closes #61665
- [X] [Tests added and passed](https://pandas.pydata.org/pandas-docs/dev/development/contributing_codebase.html#writing-tests) if fixing a bug or adding a new feature
- [X] All [code checks passed](https://pandas.pydata.org/pandas-docs/dev/development/contributing_codebase.html#pre-commit).
- [X]... | [
"Frequency"
] | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | [
"Thanks @w3stling "
] |
3,148,578,801 | 61,665 | ENH: Support for Orthodox Easter | closed | 2025-06-16T05:17:43 | 2025-06-16T19:39:28 | 2025-06-16T19:39:28 | https://github.com/pandas-dev/pandas/issues/61665 | true | null | null | w3stling | 0 | ### Feature Type
- [x] Adding new functionality to pandas
- [ ] Changing existing functionality in pandas
- [ ] Removing existing functionality in pandas
### Problem Description
The [pandas.tseries.offsets.Easter](https://github.com/pandas-dev/pandas/blob/c067bcd701e6cb4125e869a2802ef867d8395800/pandas/_libs/tsli... | [
"Enhancement",
"Needs Triage"
] | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | [] |
3,148,398,505 | 61,664 | Fix some incorrect indents in development documentation | closed | 2025-06-16T03:13:09 | 2025-06-17T23:14:10 | 2025-06-17T16:52:30 | https://github.com/pandas-dev/pandas/pull/61664 | true | https://api.github.com/repos/pandas-dev/pandas/pulls/61664 | https://github.com/pandas-dev/pandas/pull/61664 | koyuki7w | 4 | Incorrect indentations cause some texts to be misinterpreted as quoteblocks. | [
"Docs"
] | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | [
"/preview",
"/preview",
"Website preview of this PR available at: https://pandas.pydata.org/preview/pandas-dev/pandas/61664/",
"Thanks @koyuki7w "
] |
3,148,053,110 | 61,663 | BUG: Incorrect guess_datetime_format response | closed | 2025-06-15T20:46:06 | 2025-06-18T19:33:38 | 2025-06-16T18:53:51 | https://github.com/pandas-dev/pandas/issues/61663 | true | null | null | logan-dunbar | 5 | ### 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 branch](https://pandas.pydata.org/docs/dev/ge... | [
"Bug",
"Datetime",
"Duplicate Report",
"Needs Triage"
] | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | [
"* Confirmed on `2.3.0`:\n\n ```python\n >>> import pandas as pd\n >>> print(pd.tseries.api.guess_datetime_format('2025-06-15T21:25:00.000000Z'))\n %Y-%m-%dT%H:%M:%S.%f%z\n >>> print(pd.tseries.api.guess_datetime_format('2025-06-15T20:24:00.000000Z'))\n %Y-%m-%dT%H:%M:%S.%f%z\n >>> print(pd.tseries.api.guess... |
3,147,665,359 | 61,662 | DOC: Improve documentation for DataFrame.__setitem__ and .loc assignment from Series | closed | 2025-06-15T15:06:12 | 2025-08-01T15:31:05 | 2025-08-01T15:31:05 | https://github.com/pandas-dev/pandas/issues/61662 | true | null | null | cxder-77 | 1 | ### 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
pandas.DataFrame.__setitem__
https://pandas.pydata.org/docs/reference/api/pandas.DataFrame.__setitem__.html
pandas.co... | [
"Docs",
"Needs Triage"
] | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | [
"take"
] |
3,147,021,128 | 61,661 | DOC: Make the benchmarks URL clickable | closed | 2025-06-15T02:58:47 | 2025-06-16T16:57:51 | 2025-06-16T16:57:28 | https://github.com/pandas-dev/pandas/pull/61661 | true | https://api.github.com/repos/pandas-dev/pandas/pulls/61661 | https://github.com/pandas-dev/pandas/pull/61661 | star1327p | 1 | Make the benchmarks URL clickable.
- [ ] closes #xxxx (Replace xxxx with the GitHub issue number)
- [ ] [Tests added and passed](https://pandas.pydata.org/pandas-docs/dev/development/contributing_codebase.html#writing-tests) if fixing a bug or adding a new feature
- [ ] All [code checks passed](https://pandas.pyda... | [
"Docs"
] | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | [
"Thanks @star1327p "
] |
3,146,495,650 | 61,660 | BUG: Type error supplying SQLAlchemy NVARCHAR length in to_sql() | open | 2025-06-14T18:25:32 | 2025-07-23T13:43:16 | null | https://github.com/pandas-dev/pandas/issues/61660 | true | null | null | philipnye | 3 | ### 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.org/docs/dev/ge... | [
"Bug",
"IO SQL",
"Typing",
"Needs Triage"
] | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | [
"As far as I can tell, the typing of the dtype argument expects a _type class_ (e.g. `NVARCHAR`) or the name of it, not an actual _instance_ of a type class, which is instantiated using the `NVARCHAR(lenght=1024)` _constructor_.\n\n_(I am not sure if I am using the python typing terminology correctly, just trying t... |
3,146,486,878 | 61,659 | BUG: to_numeric fails to convert a Pyarrow Decimal series containing NA values | open | 2025-06-14T18:21:40 | 2025-08-19T00:08:27 | null | https://github.com/pandas-dev/pandas/pull/61659 | true | https://api.github.com/repos/pandas-dev/pandas/pulls/61659 | https://github.com/pandas-dev/pandas/pull/61659 | chilin0525 | 1 | - [x] closes #61641
- [ ] [Tests added and passed](https://pandas.pydata.org/pandas-docs/dev/development/contributing_codebase.html#writing-tests) if fixing a bug or adding a new feature
- [ ] All [code checks passed](https://pandas.pydata.org/pandas-docs/dev/development/contributing_codebase.html#pre-commit).
- [ ]... | [
"Bug",
"Dtype Conversions",
"Stale",
"Arrow"
] | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | [
"This pull request is stale because it has been open for thirty days with no activity. Please [update](https://pandas.pydata.org/pandas-docs/stable/development/contributing.html#updating-your-pull-request) and respond to this comment if you're still interested in working on this."
] |
3,146,121,756 | 61,658 | DOC/ENH: Holiday days_of_week value error | closed | 2025-06-14T12:50:04 | 2025-06-18T18:29:20 | 2025-06-17T16:53:08 | https://github.com/pandas-dev/pandas/pull/61658 | true | https://api.github.com/repos/pandas-dev/pandas/pulls/61658 | https://github.com/pandas-dev/pandas/pull/61658 | sharkipelago | 2 | Changed `Holiday` constructor argument `days_of_week` to raise a `ValueError` on input of the incorrect type as discussed in #61600
- [x] [Tests added and passed](https://pandas.pydata.org/pandas-docs/dev/development/contributing_codebase.html#writing-tests) if fixing a bug or adding a new feature
- [x] All [code che... | [
"Frequency"
] | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | [
"I also edited the docstring a little bit as I was a bit confused what days_of_week was supposed to do from the docstring alone. \r\n\r\nHappy to delete the docstring edits if they don't make sense though.",
"Thanks @sharkipelago "
] |
3,144,911,668 | 61,657 | WEB: Reorganization of the Ecosystem page | closed | 2025-06-13T22:04:43 | 2025-06-16T21:16:35 | 2025-06-16T21:16:30 | https://github.com/pandas-dev/pandas/pull/61657 | true | https://api.github.com/repos/pandas-dev/pandas/pulls/61657 | https://github.com/pandas-dev/pandas/pull/61657 | datapythonista | 3 | I changed the sections of the Ecosystem page, in a way that the pandas extensions are grouped together first, and the other sections emphasize how packages they are related to pandas. I merged two separate IO sections, and the IDEs with the development tools.
I added line breaks to very long lines, and improved a bi... | [
"Web"
] | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | [
"/preview",
"Website preview of this PR available at: https://pandas.pydata.org/preview/pandas-dev/pandas/61657/community/ecosystem.html",
"Thanks @datapythonista "
] |
3,144,296,766 | 61,656 | WEB: Clean up Ecosystem page | closed | 2025-06-13T17:46:33 | 2025-06-13T20:38:27 | 2025-06-13T20:38:21 | https://github.com/pandas-dev/pandas/pull/61656 | true | https://api.github.com/repos/pandas-dev/pandas/pulls/61656 | https://github.com/pandas-dev/pandas/pull/61656 | datapythonista | 1 | Removing projects from our Ecosystem page that don't seem maintained and much used (2+ years inactivity in their github)
Also, ArcticDB had a whole user guide in the page, leaving only the overview as other projects have, with the link to their docs for users who are interested.
| [
"Web"
] | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | [
"Thanks @datapythonista "
] |
3,144,201,465 | 61,655 | WEB: Add table of contents to the Ecosystem | closed | 2025-06-13T17:09:07 | 2025-06-13T20:37:48 | 2025-06-13T20:37:43 | https://github.com/pandas-dev/pandas/pull/61655 | true | https://api.github.com/repos/pandas-dev/pandas/pulls/61655 | https://github.com/pandas-dev/pandas/pull/61655 | datapythonista | 1 | Supersedes #61595
Changes to make the tables of contents in the website the same in all pages (we had customized the PDEP ones before).
Adding the ToC to Ecosystem. It renders like this:
I... | [
"Web"
] | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | [
"Thanks @datapythonista "
] |
3,143,997,746 | 61,654 | DOC: Add release notes template for 2.3.1 | closed | 2025-06-13T15:47:14 | 2025-06-19T20:12:41 | 2025-06-19T20:12:26 | https://github.com/pandas-dev/pandas/pull/61654 | true | https://api.github.com/repos/pandas-dev/pandas/pulls/61654 | https://github.com/pandas-dev/pandas/pull/61654 | jorisvandenbossche | 2 | Starting the release notes for 2.3.1, so we can start adding things (for new PRs, but will also follow-up with moving some things from 2.3.0 to 2.3.1) | [
"Docs"
] | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | [
"@rhshadrach I remember you were adding those in a PR with a bug fix. I think we should better merge this, but since your PR will conflict, I'll leave it to you.",
"Thanks @jorisvandenbossche "
] |
3,143,958,531 | 61,653 | [backport 2.3.x] CI: Fix slow mamba solver issue by limiting boto3 version (#61594) | closed | 2025-06-13T15:33:41 | 2025-06-24T13:48:07 | 2025-06-24T13:48:01 | https://github.com/pandas-dev/pandas/pull/61653 | true | https://api.github.com/repos/pandas-dev/pandas/pulls/61653 | https://github.com/pandas-dev/pandas/pull/61653 | jorisvandenbossche | 0 | Backport of https://github.com/pandas-dev/pandas/pull/61594 | [] | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | [] |
3,143,946,403 | 61,652 | [backport 2.3.x] TST: update xfail xarray version check in to_xarray test (#61648) | closed | 2025-06-13T15:28:54 | 2025-06-13T16:51:11 | 2025-06-13T16:51:07 | https://github.com/pandas-dev/pandas/pull/61652 | true | https://api.github.com/repos/pandas-dev/pandas/pulls/61652 | https://github.com/pandas-dev/pandas/pull/61652 | jorisvandenbossche | 3 | Backport of #61648
Probably not needed to backport because we might not get the latest xarray versions in the envs of the 2.3.x branch, but still useful in case someone runs the tests with more up to date xarray | [] | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | [
"Not sure why we get the failures in the CI, I don't think they happen in `main`. And I don't remember any recent PR fixing those.",
"> Not sure why we get the failures in the CI, I don't think they happen in `main`.\r\n\r\nCurrently it is the python-dev windows one that is failing. It has been failing consistent... |
3,143,767,689 | 61,651 | feature #58141: Consistent naming conventions for string dtype aliases | open | 2025-06-13T14:27:41 | 2025-07-27T00:10:14 | null | https://github.com/pandas-dev/pandas/pull/61651 | true | https://api.github.com/repos/pandas-dev/pandas/pulls/61651 | https://github.com/pandas-dev/pandas/pull/61651 | pedromfdiogo | 2 | Key implementation steps:
- Created factory functions (string, datetime, integer, floating, decimal, boolean, list, categorical, interval, period, sparse, date, duration, map, struct) to generate pandas dtypes (e.g., StringDtype, Int64Dtype, ArrowDtype) based on parameters like backend, bits, unit, and precision.
- A... | [
"Enhancement",
"API Design",
"Stale"
] | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | [
"@simonjayhawkins Hi! Just wanted to check if this PR needs anything else from my side. Thanks in advance for reviewing",
"This pull request is stale because it has been open for thirty days with no activity. Please [update](https://pandas.pydata.org/pandas-docs/stable/development/contributing.html#updating-your-... |
3,143,609,348 | 61,650 | feature #49580: support new-style float_format string in to_csv | closed | 2025-06-13T13:35:01 | 2025-07-08T15:48:28 | 2025-07-08T15:48:22 | https://github.com/pandas-dev/pandas/pull/61650 | true | https://api.github.com/repos/pandas-dev/pandas/pulls/61650 | https://github.com/pandas-dev/pandas/pull/61650 | pedromfdiogo | 5 | feat(to_csv): support new-style float_format strings using str.format
Detect and process new-style format strings (e.g., "{:,.2f}") in the float_format parameter of to_csv.
- Check if float_format is a string and matches new-style pattern
- Convert it to a callable (e.g., lambda x: float_format.format(x))
- Ens... | [
"Enhancement",
"IO CSV"
] | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | [
"@simonjayhawkins Hi! Just wanted to check if this PR needs anything else from my side. Thanks in advance for reviewing",
"Could you add a whatsnew entry in `v3.0.0.rst`?",
"@mroeschke What do you think of the updates?",
"I failed 1 test, but I don't know why because it doesn't seem to be related to the chang... |
3,143,422,035 | 61,649 | [backport 2.3.x] API (string dtype): implement hierarchy (NA > NaN, pyarrow > python) for consistent comparisons between different string dtypes (#61138) | closed | 2025-06-13T12:29:23 | 2025-06-13T15:34:28 | 2025-06-13T15:34:25 | https://github.com/pandas-dev/pandas/pull/61649 | true | https://api.github.com/repos/pandas-dev/pandas/pulls/61649 | https://github.com/pandas-dev/pandas/pull/61649 | jorisvandenbossche | 0 | Backport of https://github.com/pandas-dev/pandas/pull/61138 | [] | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | [] |
3,143,383,541 | 61,648 | TST: update xfail xarray version check in to_xarray test | closed | 2025-06-13T12:13:46 | 2025-06-13T15:29:21 | 2025-06-13T13:31:19 | https://github.com/pandas-dev/pandas/pull/61648 | true | https://api.github.com/repos/pandas-dev/pandas/pulls/61648 | https://github.com/pandas-dev/pandas/pull/61648 | jorisvandenbossche | 2 | Started to see xpass in https://github.com/pandas-dev/pandas/pull/61594, so updating the version check here. Not sure this is entirely covered by CI, but tested this locally with a few different xarray versions. | [
"Testing"
] | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | [
"Owee, I'm MrMeeseeks, Look at me.\n\nThere seem to be a conflict, please backport manually. Here are approximate instructions:\n\n1. Checkout backport branch and update it.\n\n```\ngit checkout 2.3.x\ngit pull\n```\n\n2. Cherry pick the first parent branch of the this PR on top of the older branch:\n```\ngit cherr... |
3,143,286,276 | 61,647 | WEB: Moving maintainers to inactive (no answer from them) | closed | 2025-06-13T11:32:13 | 2025-06-25T17:05:05 | 2025-06-20T20:30:45 | https://github.com/pandas-dev/pandas/pull/61647 | true | https://api.github.com/repos/pandas-dev/pandas/pulls/61647 | https://github.com/pandas-dev/pandas/pull/61647 | datapythonista | 4 | I couldn't get an answer from @jreback @topper-123 @alimcmaster1 regarding being active or unactive for some time.
I'll leave this open for few days, in case they see it an can confirm. But in the past we've been moving people to inactive if they didn't seem active for a long time and we couldn't get confirmation fr... | [
"Web"
] | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | [
"well i do follow things and in particular not too happy about what is going on\n\nwill reserve the right to vote if needed",
"Thanks Jeff for confirming, great news that you are still following the project and interested in voting if needed. Very happy to revert the changes and leaving you as active.\r\n\r\nAnd ... |
3,143,094,907 | 61,646 | fix std/var with complex array | closed | 2025-06-13T10:28:07 | 2025-06-16T17:13:32 | 2025-06-16T17:13:26 | https://github.com/pandas-dev/pandas/pull/61646 | true | https://api.github.com/repos/pandas-dev/pandas/pulls/61646 | https://github.com/pandas-dev/pandas/pull/61646 | randolf-scholz | 2 | - [x] closes #61645
- [x] [Tests added and passed](https://pandas.pydata.org/pandas-docs/dev/development/contributing_codebase.html#writing-tests) if fixing a bug or adding a new feature
- [x] All [code checks passed](https://pandas.pydata.org/pandas-docs/dev/development/contributing_codebase.html#pre-commit).
- [ ]... | [
"Reduction Operations"
] | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | [
"These failures seem unrelated, is the CI broken?",
"Thanks @randolf-scholz "
] |
3,142,900,511 | 61,645 | BUG: `Series.std` and `Series.var` give incorrect results for complex values. | closed | 2025-06-13T09:27:37 | 2025-06-16T17:13:28 | 2025-06-16T17:13:27 | https://github.com/pandas-dev/pandas/issues/61645 | true | null | null | randolf-scholz | 0 | ### Pandas version checks
- [x] I have checked that this issue has not already been reported.
- [x] I have confirmed this bug exists on the [latest version](https://pandas.pydata.org/docs/whatsnew/index.html) of pandas.
- [ ] I have confirmed this bug exists on the [main branch](https://pandas.pydata.org/docs/dev/ge... | [
"Bug",
"Needs Triage"
] | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | [] |
3,142,883,091 | 61,644 | BUG: Add PyArrow datelike type support for `map()` | open | 2025-06-13T09:23:38 | 2025-08-14T21:00:00 | null | https://github.com/pandas-dev/pandas/pull/61644 | true | https://api.github.com/repos/pandas-dev/pandas/pulls/61644 | https://github.com/pandas-dev/pandas/pull/61644 | KevsterAmp | 6 | - [x] closes #61231 (Replace xxxx with the GitHub issue number)
- [x] [Tests added and passed](https://pandas.pydata.org/pandas-docs/dev/development/contributing_codebase.html#writing-tests) if fixing a bug or adding a new feature
- [x] All [code checks passed](https://pandas.pydata.org/pandas-docs/dev/development/co... | [
"Bug",
"Apply",
"Arrow"
] | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | [
"Can you add tests based on the original issue",
"Looks like some tests are failing in the CI. Can you address those?",
"@jbrockmendel sorry I was inactive last 2 weeks. Will take a look at this issue atm",
"I now used `self.dtype.kind in \"mM\"` instead. \r\n\r\nI saw that the test function (`test_map()`) u... |
3,142,102,084 | 61,643 | BUG: replace value failed | closed | 2025-06-13T03:08:09 | 2025-08-05T17:10:36 | 2025-08-05T17:10:35 | https://github.com/pandas-dev/pandas/issues/61643 | true | null | null | peng256 | 5 | ### 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 branch](https://pandas.pydata.org/docs/dev/ge... | [
"Bug",
"Needs Info",
"replace"
] | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | [
"take\n",
"I think the underlying values array is read-only, see https://pandas.pydata.org/docs/dev/user_guide/copy_on_write.html#read-only-numpy-arrays\n\nCould you use `pd.where` instead?",
"Does anyone working on this? any improvements?",
"Can you post an example that is copy-pastable without having to loa... |
3,141,658,639 | 61,642 | ENH: Allow third-party packages to register IO engines | closed | 2025-06-12T21:58:17 | 2025-07-03T21:33:32 | 2025-07-03T17:02:50 | https://github.com/pandas-dev/pandas/pull/61642 | true | https://api.github.com/repos/pandas-dev/pandas/pulls/61642 | https://github.com/pandas-dev/pandas/pull/61642 | datapythonista | 50 | - [X] xref #61584
- [X] [Tests added and passed](https://pandas.pydata.org/pandas-docs/dev/development/contributing_codebase.html#writing-tests) if fixing a bug or adding a new feature
- [X] All [code checks passed](https://pandas.pydata.org/pandas-docs/dev/development/contributing_codebase.html#pre-commit).
- [X] ... | [
"IO Data",
"API Design"
] | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | [
"/preview",
"Website preview of this PR available at: https://pandas.pydata.org/preview/pandas-dev/pandas/61642/",
"@mroeschke I addressed your comments and I think this should be ready when you've got time. Thanks!",
"Fully agree, I just didn't want to make this PR too big by allowing the engines and adding`... |
3,141,579,514 | 61,641 | BUG: `to_numeric` fails to convert a Pyarrow Decimal series containing NA values. | open | 2025-06-12T21:16:02 | 2025-07-17T15:56:07 | null | https://github.com/pandas-dev/pandas/issues/61641 | true | null | null | kzvezdarov | 9 | ### 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.org/docs/dev/ge... | [
"Bug",
"Dtype Conversions",
"Arrow"
] | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | [
"Confirmed on main. PRs and investigations are welcome. From a quick look I do think that `.dropna()` from your link above does cause this issue. \n\nThanks for raising this!",
"take",
"> ### Expected Behavior\n> I'd expect the series to get converted (to values of `decimal.Decimal` type, with dtype=object) wit... |
3,141,425,028 | 61,640 | BUG: Fix GroupBy aggregate coersion of outputs inconsistency for pyarrow dtypes | open | 2025-06-12T20:01:14 | 2025-08-02T00:09:06 | null | https://github.com/pandas-dev/pandas/pull/61640 | true | https://api.github.com/repos/pandas-dev/pandas/pulls/61640 | https://github.com/pandas-dev/pandas/pull/61640 | heoh | 1 | - [x] closes #61636
- [x] [Tests added and passed](https://pandas.pydata.org/pandas-docs/dev/development/contributing_codebase.html#writing-tests) if fixing a bug or adding a new feature
- [x] All [code checks passed](https://pandas.pydata.org/pandas-docs/dev/development/contributing_codebase.html#pre-commit).
- [x]... | [
"Bug",
"Groupby",
"Stale",
"Arrow"
] | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | [
"This pull request is stale because it has been open for thirty days with no activity. Please [update](https://pandas.pydata.org/pandas-docs/stable/development/contributing.html#updating-your-pull-request) and respond to this comment if you're still interested in working on this."
] |
3,141,322,038 | 61,639 | [backport 2.3.x] ENH(string dtype): fallback for HDF5 with UTF-8 surrogates (#60993) | closed | 2025-06-12T19:18:32 | 2025-06-13T12:25:01 | 2025-06-13T12:25:01 | https://github.com/pandas-dev/pandas/pull/61639 | true | https://api.github.com/repos/pandas-dev/pandas/pulls/61639 | https://github.com/pandas-dev/pandas/pull/61639 | jorisvandenbossche | 0 | Backport of #60993 | [] | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | [] |
3,140,441,450 | 61,638 | [2.3.x] CI: temporarily pin numpy to 2.2 until latest numexpr is available | closed | 2025-06-12T14:03:20 | 2025-06-12T16:51:41 | 2025-06-12T16:51:37 | https://github.com/pandas-dev/pandas/pull/61638 | true | https://api.github.com/repos/pandas-dev/pandas/pulls/61638 | https://github.com/pandas-dev/pandas/pull/61638 | jorisvandenbossche | 0 | Some tests involving numexpr are failing in the CI of the backport PRs, which is happening since the release of numpy 2.3, I think.
On the main branch this is not happening (yet), because I think numpy gets restricted there to 2.2 because of the presence of numba in the env. In the 2.3.x branch however, mamba ends up ... | [
"CI"
] | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | [] |
3,140,199,907 | 61,637 | Fix void dtype handling | open | 2025-06-12T12:59:53 | 2025-08-20T06:38:10 | null | https://github.com/pandas-dev/pandas/pull/61637 | true | https://api.github.com/repos/pandas-dev/pandas/pulls/61637 | https://github.com/pandas-dev/pandas/pull/61637 | flying-sheep | 3 | - [x] closes #54810
- [x] [Tests added and passed](https://pandas.pydata.org/pandas-docs/dev/development/contributing_codebase.html#writing-tests) if fixing a bug or adding a new feature
- [x] All [code checks passed](https://pandas.pydata.org/pandas-docs/dev/development/contributing_codebase.html#pre-commit).
- [x] Ad... | [
"Bug",
"Constructors",
"Stale"
] | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | [
"which `doc/source/whatsnew/vX.X.X.rst` am I supposed to edit?",
"This pull request is stale because it has been open for thirty days with no activity. Please [update](https://pandas.pydata.org/pandas-docs/stable/development/contributing.html#updating-your-pull-request) and respond to this comment if you're still... |
3,139,941,881 | 61,636 | BUG: Groupby aggregate coersion of outputs inconsistency for pyarrow dtypes | closed | 2025-06-12T11:37:40 | 2025-07-29T16:13:54 | 2025-07-29T16:13:54 | https://github.com/pandas-dev/pandas/issues/61636 | true | null | null | AndrejIring | 2 | ### Pandas version checks
- [x] I have checked that this issue has not already been reported.
- [ ] 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 branch](https://pandas.pydata.org/docs/dev/ge... | [
"Bug",
"Groupby",
"Arrow"
] | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | [
"Thanks for describing the issue. I'd like to try work on it.",
"take"
] |
3,137,863,533 | 61,635 | Description of pandas_datetime_exec function. | closed | 2025-06-11T19:15:00 | 2025-07-01T01:33:35 | 2025-06-30T18:12:42 | https://github.com/pandas-dev/pandas/pull/61635 | true | https://api.github.com/repos/pandas-dev/pandas/pulls/61635 | https://github.com/pandas-dev/pandas/pull/61635 | kunaljani1100 | 3 | Added the function description documentation for `pandas_datetime_exec` in the following location.
https://github.com/pandas-dev/pandas/blob/main/pandas/_libs/src/datetime/pd_datetime.c
- [x] closes #61631 (Replace xxxx with the GitHub issue number)
- [ ] [Tests added and passed](https://pandas.pydata.org/pandas... | [
"Docs"
] | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | [
"@mroeschke Can you please review this change whenever you get a chance?",
"Thanks @kunaljani1100 ",
"Thanks you very much @mroeschke for taking a look into this."
] |
3,136,989,603 | 61,634 | ENH: ExcelWriter append or create mode | open | 2025-06-11T14:10:56 | 2025-07-29T06:19:17 | null | https://github.com/pandas-dev/pandas/issues/61634 | true | null | null | flori-ko | 6 | ### Feature Type
- [x] Adding new functionality to pandas
- [ ] Changing existing functionality in pandas
- [ ] Removing existing functionality in pandas
### Problem Description
I work with scripts, which write a lot of dataframes to different sheets in excel files. For my use case, the excel files I want to writ... | [
"Enhancement",
"IO Excel",
"Needs Triage"
] | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | [
"I think this is a valid and useful use case. \n\nI think it might be easier just to use `os.path.exists()` to determine if the file exists, and then just update engine_kwargs accordingly.",
"take",
"I agree this is an unconventional case where append mode doesn't create a file automatically.\nWhereas in both s... |
3,136,949,969 | 61,633 | [backport 2.3.x] BUG(string dtype): groupby/resampler.min/max returns float on all NA strings (#60985) | closed | 2025-06-11T13:59:17 | 2025-06-12T19:11:06 | 2025-06-12T19:11:01 | https://github.com/pandas-dev/pandas/pull/61633 | true | https://api.github.com/repos/pandas-dev/pandas/pulls/61633 | https://github.com/pandas-dev/pandas/pull/61633 | jorisvandenbossche | 0 | Backport of https://github.com/pandas-dev/pandas/pull/60985 | [] | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | [] |
3,136,664,134 | 61,632 | DOC: warn about apply with raw=True, if function returns Optional[int] | open | 2025-06-11T12:33:33 | 2025-08-09T12:16:32 | null | https://github.com/pandas-dev/pandas/issues/61632 | true | null | null | wrschneider | 2 | ### 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.apply.html
### Documentation problem
when you use `df.... | [
"Docs",
"Apply"
] | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | [
"Thanks for the report. I'm positive on adding something to the effect of \"When `raw=True`, the dtype will be inferred from the first result\" (is this true when using numba? Need to check). \n\nAnd while I'm positive on accepting a `dtype_result` or similar argument, that will need a solid proposal on how it'd wo... |
3,135,439,373 | 61,631 | DOC: Description of pandas_datetime_exec function | closed | 2025-06-11T04:32:00 | 2025-06-30T18:12:43 | 2025-06-30T18:12:43 | https://github.com/pandas-dev/pandas/issues/61631 | true | null | null | kunaljani1100 | 2 | ### 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://github.com/pandas-dev/pandas/blob/main/pandas/_libs/src/datetime/pd_datetime.c
### Documentation problem
The... | [
"Docs",
"Needs Triage"
] | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | [
"I'm curious if this is actually bothering anybody? I don't mind \"fixing\" it, just have the vibe that this is AI-derived rather than a real issue.",
"This is not bothering anybody, it is just additional documentation for existing code that already exists in this repo so that new developers can understand the c... |
3,135,421,091 | 61,630 | DOC: Title Capitalization and Grammar Fix | closed | 2025-06-11T04:17:22 | 2025-06-11T19:00:26 | 2025-06-11T16:00:08 | https://github.com/pandas-dev/pandas/pull/61630 | true | https://api.github.com/repos/pandas-dev/pandas/pulls/61630 | https://github.com/pandas-dev/pandas/pull/61630 | kunaljani1100 | 1 | Currrently the title of the repository in the README.md reads the following text: pandas: powerful Python data analysis toolkit
Since the title is grammatically incorrect and also has incorrect capitalization, this pull request was opened to ensure that the title is capitalized properly and there are no grammatical ... | [
"Docs"
] | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | [
"Sure, thanks @kunaljani1100 "
] |
3,134,989,864 | 61,629 | BUG: to_stata erroring when encoded text and normal text have mismatched length | closed | 2025-06-10T22:35:36 | 2025-06-30T18:14:34 | 2025-06-30T18:14:29 | https://github.com/pandas-dev/pandas/pull/61629 | true | https://api.github.com/repos/pandas-dev/pandas/pulls/61629 | https://github.com/pandas-dev/pandas/pull/61629 | eicchen | 1 | - [x] closes #61583 (Replace xxxx with the GitHub issue number)
- [x] [Tests added and passed](https://pandas.pydata.org/pandas-docs/dev/development/contributing_codebase.html#writing-tests) if fixing a bug or adding a new feature
- [x] All [code checks passed](https://pandas.pydata.org/pandas-docs/dev/development/c... | [
"Bug",
"IO Stata"
] | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | [
"Thanks @eicchen "
] |
3,134,848,986 | 61,628 | BUG: PerformanceWarning when agg with pd.NamedAgg and as_index=False | open | 2025-06-10T21:09:03 | 2025-06-23T15:35:19 | null | https://github.com/pandas-dev/pandas/issues/61628 | true | null | null | xma08 | 1 | ### 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.org/docs/dev/ge... | [
"Bug",
"Needs Info",
"Apply",
"Warnings"
] | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | [
"I did a little bit of testing (using time) and found that using dict agg with `as_index=false` is actually faster than named agg, so I am not sure if a Performance Warning is necessary for this case. "
] |
3,134,706,506 | 61,627 | BUG: the behavior of DataFrameGroupBy.apply(..., include_groups=True) breaks post-mortem debugging | closed | 2025-06-10T20:00:05 | 2025-07-31T02:07:26 | 2025-07-31T02:07:16 | https://github.com/pandas-dev/pandas/issues/61627 | true | null | null | pulkin | 2 | ### 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 branch](https://pandas.pydata.org/docs/dev/ge... | [
"Bug",
"Groupby",
"Apply"
] | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | [
"Pandas 2.3.0 version only allows `include_groups=False`\nDocumentation: https://pandas.pydata.org/docs/reference/api/pandas.core.groupby.DataFrameGroupBy.apply.html\n\nChecked on main branch:\n```\n>>> import pandas as pd\n+ /opt/homebrew/Caskroom/miniforge/base/envs/pandas-dev/bin/ninja\n[1/1] Generating write_ve... |
3,134,661,051 | 61,626 | DOC: Pandas contributor take limit | closed | 2025-06-10T19:38:27 | 2025-06-22T11:21:20 | 2025-06-22T11:21:17 | https://github.com/pandas-dev/pandas/issues/61626 | true | null | null | eicchen | 6 | ### 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/development/contributing.html#id2
### Documentation problem
I don't believe it is doc... | [
"Docs"
] | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | [
"Hi! I’m a new contributor interested in making my first PR and this seems like a great starter issue. May I please take this up? I’ll wait for confirmation before starting. Thanks! 😊",
"@SnehaDeshmukh28 Absolutely! In the meantime you could also check what other issues are open to contribute to, usually documen... |
3,133,949,972 | 61,625 | [backport 2.3.x] BUG(string dtype): Empty sum produces incorrect result (#60936) | closed | 2025-06-10T15:01:04 | 2025-06-12T14:05:19 | 2025-06-12T14:05:15 | https://github.com/pandas-dev/pandas/pull/61625 | true | https://api.github.com/repos/pandas-dev/pandas/pulls/61625 | https://github.com/pandas-dev/pandas/pull/61625 | jorisvandenbossche | 1 | Backport of https://github.com/pandas-dev/pandas/pull/60936 | [] | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | [
"Remaining failures are handled in https://github.com/pandas-dev/pandas/pull/61638"
] |
3,133,857,521 | 61,624 | BUG: Fix infer_dtype result for float with embedded pd.NA | closed | 2025-06-10T14:37:42 | 2025-07-29T13:00:15 | 2025-07-11T19:08:56 | https://github.com/pandas-dev/pandas/pull/61624 | true | https://api.github.com/repos/pandas-dev/pandas/pulls/61624 | https://github.com/pandas-dev/pandas/pull/61624 | heoh | 3 | - [x] closes #61621
- [x] [Tests added and passed](https://pandas.pydata.org/pandas-docs/dev/development/contributing_codebase.html#writing-tests) if fixing a bug or adding a new feature
- [x] All [code checks passed](https://pandas.pydata.org/pandas-docs/dev/development/contributing_codebase.html#pre-commit).
- [x]... | [
"Bug",
"Missing-data",
"Dtype Conversions"
] | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | [
"Is there anything else I can do about this? I would appreciate it if you could review it when you have time.",
"Thanks @heoh!",
"@rhshadrach I could really use this fix. As this is not much of a breaking change, can't we change the milestone to 2.3.2?\r\nI would highly appreciate it. <3"
] |
3,133,177,853 | 61,623 | BUG: DataFrame.explode fails with str dtype | closed | 2025-06-10T11:13:09 | 2025-06-24T08:51:14 | 2025-06-24T07:35:49 | https://github.com/pandas-dev/pandas/pull/61623 | true | https://api.github.com/repos/pandas-dev/pandas/pulls/61623 | https://github.com/pandas-dev/pandas/pull/61623 | rhshadrach | 4 | - [ ] closes #xxxx (Replace xxxx with the GitHub issue number)
- [ ] [Tests added and passed](https://pandas.pydata.org/pandas-docs/dev/development/contributing_codebase.html#writing-tests) if fixing a bug or adding a new feature
- [ ] All [code checks passed](https://pandas.pydata.org/pandas-docs/dev/development/con... | [
"Bug",
"Reshaping",
"Strings"
] | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | [
"@datapythonista \r\n\r\n> Btw, did we have problems before to have the `result is not df` assert? I haven't used it before, it'd be good to understand in which tests it make sense. Thanks!\r\n\r\nI think it makes sense to check this when we have a no-op that should return a copy. If the operation modifies the data... |
3,133,144,774 | 61,622 | BUG: CoW - eq not implemented for <class 'pandas.core.internals.blocks.ExtensionBlock'> | closed | 2025-06-10T11:01:53 | 2025-07-28T16:24:09 | 2025-07-28T16:24:08 | https://github.com/pandas-dev/pandas/issues/61622 | true | null | null | mhabets | 2 | ### 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 branch](https://pandas.pydata.org/docs/dev/ge... | [
"Bug",
"replace",
"Copy / view semantics"
] | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | [
"cc @phofl ",
"I haven't run a bisection, but this looks likely to be due to https://github.com/pandas-dev/pandas/pull/52008. Having the weakref to an Index looks like it could be a footgun due to equality comparisons, but we can at least work around here by replacing\n\nhttps://github.com/pandas-dev/pandas/blob/... |
3,132,794,266 | 61,621 | BUG: infer_dtype result for float with embedded pd.NA | closed | 2025-06-10T09:15:31 | 2025-07-11T19:08:58 | 2025-07-11T19:08:58 | https://github.com/pandas-dev/pandas/issues/61621 | true | null | null | MarkusZimmerDLR | 5 | ### 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 branch](https://pandas.pydata.org/docs/dev/ge... | [
"Bug",
"Missing-data",
"Dtype Conversions"
] | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | [
"Confirmed on main! Investigations and PRs are welcome.\n\nThanks for raising this!",
"I want to contribute to this. Thank you for explaining the issue.",
"take",
"Since this seems to be a very simple and minor fix, is it possible to not wait for the 3.0 release? Or is the release imminent?",
"xref #32931\n... |
3,132,603,595 | 61,620 | API: New global option to set the default dtypes to use | open | 2025-06-10T08:15:11 | 2025-06-10T11:13:16 | null | https://github.com/pandas-dev/pandas/issues/61620 | true | null | null | datapythonista | 3 | This was already implemented before 2.0 in #50748, but then removed before the release in #51853, as in too many cases the option wasn't being respected.
The idea is to have a global option to let pandas know which dtype kind to use when data is created (the exact option name needs to be discussed, but I'll use `use_a... | [
"API Design",
"Needs Discussion"
] | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | [
"> 2\\. I think at least initially it makes sense that if a user is specific about the dtype they want to use (e.g. `Series([1, 2], dtype=\"Int32\")`) we let them do it. But could it make sense to have a second option `force_arrow` or `force_dtype_backend` so any operation that would use another dtype kind would fa... |
3,132,010,456 | 61,619 | DOC: Clarify that 'names' is only used when constructing a MultiIndex | closed | 2025-06-10T03:14:48 | 2025-06-10T12:53:18 | 2025-06-10T12:53:18 | https://github.com/pandas-dev/pandas/pull/61619 | true | https://api.github.com/repos/pandas-dev/pandas/pulls/61619 | https://github.com/pandas-dev/pandas/pull/61619 | EdwardPunzalan | 1 | - [x] closes #19082
- [ ] [Tests added and passed](https://pandas.pydata.org/pandas-docs/dev/development/contributing_codebase.html#writing-tests) if fixing a bug or adding a new feature
**(Not applicable — this is a documentation-only change)**
- [x] All [code checks passed](https://pandas.pydata.org/pandas... | [] | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | [
"I'll close this PR as it doesn't feel useful. Feel free to comment if I'm missing something, and I can surely reopen."
] |
3,131,572,969 | 61,618 | Moving to PyArrow dtypes by default | open | 2025-06-09T21:51:57 | 2025-07-01T22:23:59 | null | https://github.com/pandas-dev/pandas/issues/61618 | true | null | null | datapythonista | 103 | There have been some discussions about this before, but as far as I know there is not a plan or any decision made.
My understanding is (feel free to disagree):
1. If we were starting pandas today, we would **only** use Arrow as storage for DataFrame columns / Series
2. After all the great work that has been done on b... | [
"Needs Discussion",
"Arrow"
] | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | [
"Moving users to pyarrow types by default in 3.0 would be insane because #32265 has not been addressed. Getting that out of the way was the point of PDEP 16, which you and Simon are oddly hostile toward.",
"Since I helped draft PDEP-10, I would like a world where the Arrow type system with NA semantics would be ... |
3,131,536,267 | 61,617 | BUG: numpy_nullable NaNs do not round-trip through CSV | open | 2025-06-09T21:30:14 | 2025-07-10T15:15:11 | null | https://github.com/pandas-dev/pandas/issues/61617 | true | null | null | jbrockmendel | 2 | ### 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.org/docs/dev/ge... | [
"Bug",
"IO CSV",
"PDEP missing values"
] | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | [
"take @jbrockmendel i can resolve this issue?",
"This is not actionable at the moment. We suggest looking for an issue with the \"good first issue\" label."
] |
3,131,243,281 | 61,616 | CI: New NumPy release breaking Numba in our CI | open | 2025-06-09T19:28:13 | 2025-06-09T19:56:30 | null | https://github.com/pandas-dev/pandas/issues/61616 | true | null | null | datapythonista | 2 | ```
pandas/tests/groupby/aggregate/test_numba.py:19: in <module>
numba = pytest.importorskip("numba")
^^^^^^^^^^^^^^^^^^^^^^^^^^^^
E pytest.PytestDeprecationWarning:
E Module 'numba' was found, but when imported by pytest it raised:
E ImportError('Numba needs NumPy 2.2 or less. Got NumPy 2.3.... | [
"CI",
"Dependencies"
] | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | [
"This was probably fixed by https://github.com/conda-forge/numba-feedstock/pull/157.\n\nI think https://github.com/conda-forge/conda-forge-repodata-patches-feedstock/pull/1039 will fix this with no change needed on our part, or you could temporarily add that pin until that repo data fix is in.",
"Ah, amazing, tha... |
3,131,181,248 | 61,615 | BUG: Fix RecursionError when apply native container types as a func | closed | 2025-06-09T19:03:33 | 2025-06-16T23:13:30 | 2025-06-16T23:13:25 | https://github.com/pandas-dev/pandas/pull/61615 | true | https://api.github.com/repos/pandas-dev/pandas/pulls/61615 | https://github.com/pandas-dev/pandas/pull/61615 | heoh | 1 | - [x] closes #61565
- [x] [Tests added and passed](https://pandas.pydata.org/pandas-docs/dev/development/contributing_codebase.html#writing-tests) if fixing a bug or adding a new feature
- [x] All [code checks passed](https://pandas.pydata.org/pandas-docs/dev/development/contributing_codebase.html#pre-commit).
- [x]... | [
"Dtype Conversions"
] | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | [
"Thanks @heoh "
] |
3,130,644,380 | 61,614 | feat(1.5.x): Add support for python 3.12 | closed | 2025-06-09T15:25:57 | 2025-06-09T16:53:46 | 2025-06-09T16:53:46 | https://github.com/pandas-dev/pandas/pull/61614 | true | https://api.github.com/repos/pandas-dev/pandas/pulls/61614 | https://github.com/pandas-dev/pandas/pull/61614 | piotrplenik | 2 | - [ ] closes #xxxx (Replace xxxx with the GitHub issue number)
- [ ] [Tests added and passed](https://pandas.pydata.org/pandas-docs/dev/development/contributing_codebase.html#writing-tests) if fixing a bug or adding a new feature
- [ ] All [code checks passed](https://pandas.pydata.org/pandas-docs/dev/development/con... | [] | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | [
"I don't think we have plans to release any new 1.5 version, or provide support of any version older than 2.3. It would also be useful to reference an issue or provide a description, so we have context on your proposal.",
"Thanks for the PR, but as mentioned the community no longer plans to supporting pandas 1.5 ... |
3,129,988,361 | 61,613 | Fix type annotation issues in pandas/core/frame.py to resolve self-re… | closed | 2025-06-09T11:14:56 | 2025-06-09T11:36:15 | 2025-06-09T11:36:15 | https://github.com/pandas-dev/pandas/pull/61613 | true | https://api.github.com/repos/pandas-dev/pandas/pulls/61613 | https://github.com/pandas-dev/pandas/pull/61613 | mdawoud27 | 0 | …ferences and pipe operator syntax
- [x] closes #xxxx (Replace xxxx with the GitHub issue number)
- [x] [Tests added and passed](https://pandas.pydata.org/pandas-docs/dev/development/contributing_codebase.html#writing-tests) if fixing a bug or adding a new feature
- [x] All [code checks passed](https://pandas.pyda... | [] | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | [] |
3,128,709,220 | 61,612 | Fix explode to preserve datetime unit in Series and DataFrame; update… | closed | 2025-06-08T21:27:32 | 2025-06-12T09:09:05 | 2025-06-12T09:09:05 | https://github.com/pandas-dev/pandas/pull/61612 | true | https://api.github.com/repos/pandas-dev/pandas/pulls/61612 | https://github.com/pandas-dev/pandas/pull/61612 | Narendersingh007 | 0 |
This PR fixes an issue where the explode method in both Series and DataFrame does not preserve the datetime unit information (such as milliseconds or microseconds) of DatetimeIndex or datetime-like data. Previously, exploding a datetime-like Series or DataFrame column would convert timestamps to nanosecond resolution... | [] | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | [] |
3,128,685,347 | 61,611 | Fix/devcontainer qt deps | closed | 2025-06-08T20:43:57 | 2025-07-28T17:19:52 | 2025-07-28T17:19:51 | https://github.com/pandas-dev/pandas/pull/61611 | true | https://api.github.com/repos/pandas-dev/pandas/pulls/61611 | https://github.com/pandas-dev/pandas/pull/61611 | Drei-E3 | 1 | - [x] closes #61037
- [x] [Tests not added and not passed]Test: Manually ran pytest inside the devcontainer to confirm PyQt5 and pytest-qt are functional.
- Adding platform: linux/amd64 to the docker-compose.yml dev service to work around image compatibility issues on Apple Silicon.
- Switching from direct Dockerfi... | [
"Build"
] | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | [
"Thanks for the pull request, but it appears to have gone stale. If interested in continuing, please merge in the main branch, address any review comments and/or failing tests, and we can reopen."
] |
3,128,583,320 | 61,610 | BUG: `explode()` converts timestamps at millisecond resolution in DatetimeIndex to nanosecond resolution | closed | 2025-06-08T18:02:53 | 2025-06-11T22:40:10 | 2025-06-11T22:40:10 | https://github.com/pandas-dev/pandas/issues/61610 | true | null | null | void-rooster | 2 | ### 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 branch](https://pandas.pydata.org/docs/dev/ge... | [
"Bug",
"Needs Triage"
] | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | [
"Hello, I’m interested in contributing a fix for this issue.",
"Thanks for the report. This seems to be fixed in main."
] |
3,128,489,154 | 61,609 | CLN: Fix code formatting to address pre-commit and build failures | closed | 2025-06-08T16:07:29 | 2025-06-09T10:14:53 | 2025-06-09T08:10:03 | https://github.com/pandas-dev/pandas/pull/61609 | true | https://api.github.com/repos/pandas-dev/pandas/pulls/61609 | https://github.com/pandas-dev/pandas/pull/61609 | Neer-Pathak | 7 | Run ruff --fix and ruff format to fix style issues flagged by pre-commit.
This resolves common RUF003 errors (e.g., ambiguous hyphens) seen across multiple PRs. | [] | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | [
"I think as per the documentation I should rename my commit to CLN: Code cleanup.",
"Not sure where you saw pre-commit flagging issues, but the CI is green for main, I think all is good (based on our validations).\r\n\r\nMaybe you run things locally with different versions of the validation tools?",
"> Not sure... |
3,128,436,139 | 61,608 | BUG: Pandas concat raises RuntimeWarning: '<' not supported between i… | closed | 2025-06-08T15:15:25 | 2025-06-08T16:01:47 | 2025-06-08T16:01:47 | https://github.com/pandas-dev/pandas/pull/61608 | true | https://api.github.com/repos/pandas-dev/pandas/pulls/61608 | https://github.com/pandas-dev/pandas/pull/61608 | Neer-Pathak | 0 | # Fix GH-61477: Stop Spurious Warning When `concat(..., sort=False)` on Mixed-Type `MultiIndex`
## Overview
When you do something like:
```python
pd.concat([df1, df2], axis=1, sort=False)
```
and your two DataFrames have MultiIndex columns that mix tuples and integers, pandas used to try to sort those label... | [] | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | [] |
3,128,119,804 | 61,607 | QST: Subject: User Experience Issue - NumPy Types in DataFrame Results Breaking Readability | open | 2025-06-08T09:05:24 | 2025-06-09T16:51:25 | null | https://github.com/pandas-dev/pandas/issues/61607 | true | null | null | COderHop | 2 | ### Research
- [x] I have searched the [[pandas] tag](https://stackoverflow.com/questions/tagged/pandas) on StackOverflow for similar questions.
- [x] I have asked my usage related question on [StackOverflow](https://stackoverflow.com).
### Link to question on StackOverflow
None
### Question about pandas
ssue De... | [
"Usage Question",
"Needs Triage"
] | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | [
"Thanks @COderHop for the report.\n\nIt appears that you have a good grasp of the issue. IIRC this has been reported/discussed before but I can't find it at this time.\n\n> Breaking Change: Existing code expectations broken without clear migration path\n\nI do not agree that from the pandas perspective this is true... |
3,128,016,694 | 61,606 | DEP: update python-calamine to 0.3.2 | closed | 2025-06-08T07:05:47 | 2025-06-19T20:50:35 | 2025-06-19T20:50:35 | https://github.com/pandas-dev/pandas/pull/61606 | true | https://api.github.com/repos/pandas-dev/pandas/pulls/61606 | https://github.com/pandas-dev/pandas/pull/61606 | chilin0525 | 5 | - [x] closes https://github.com/pandas-dev/pandas/issues/61186
- [ ] [Tests added and passed](https://pandas.pydata.org/pandas-docs/dev/development/contributing_codebase.html#writing-tests) if fixing a bug or adding a new feature
- [ ] All [code checks passed](https://pandas.pydata.org/pandas-docs/dev/development/con... | [
"Dependencies"
] | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | [
"It'd be good to either link an existing issue, or to write a description, so we can understand why we should merge this.",
"@datapythonista Thanks for the reminder! I’ve now added the issue link for clarity. Since this is my first PR involving a package version bump, I wanted to ask:\r\n1. Does the pandas commun... |
3,127,822,197 | 61,605 | DOC: Show constructor arguments for some classes in `pd.series.offsets` | closed | 2025-06-08T02:20:34 | 2025-08-20T20:30:50 | 2025-08-20T20:30:48 | https://github.com/pandas-dev/pandas/pull/61605 | true | https://api.github.com/repos/pandas-dev/pandas/pulls/61605 | https://github.com/pandas-dev/pandas/pull/61605 | Dr-Irv | 16 | This contributes to https://github.com/pandas-dev/pandas/issues/52431
In that issue, the goal is to show the arguments for the constructors for the various offsets, which are all in `pyx` files.
The problem is that `sphinx` doesn't pick up the arguments for `__init__()` in those files. It seems that if you ha... | [
"Docs",
"Frequency"
] | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | [
"/preview\r\n",
"No strong opinions about this, but if the examples need the okexcept on windows sounds like this change is breaking things on windows, no? I guess I'm missing something, if you can clarify. But it would be better to fix the underlying problem, I don't think we should add okexcept unless we docume... |
3,127,606,594 | 61,604 | WEB: Replace os.path with pathlib.Path in pandas_web.py | closed | 2025-06-07T22:27:57 | 2025-06-13T16:22:08 | 2025-06-13T16:21:39 | https://github.com/pandas-dev/pandas/pull/61604 | true | https://api.github.com/repos/pandas-dev/pandas/pulls/61604 | https://github.com/pandas-dev/pandas/pull/61604 | iabhi4 | 5 | Replaces `os.path` with `pathlib.Path` in `pandas_web.py`, as suggested by @datapythonista in [61578](https://github.com/pandas-dev/pandas/pull/61578). No functional changes, verified site generation remains correct
- [x] Ran pre-commit check | [
"Web"
] | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | [
"Thanks for the review! updated to make sure all paths are created as `Path` early and used consistently. Removed redundant casts too.",
"Addressed all the latest comments, switched to `Path.rglob`, cleaned up `base_url`, and ensured consistent `Path` usage. Let me know if anything else looks off, I also retested... |
3,127,589,818 | 61,603 | REF: Replace os.path with pathlib.Path in pandas_web.py | closed | 2025-06-07T22:00:23 | 2025-06-07T22:18:40 | 2025-06-07T22:18:40 | https://github.com/pandas-dev/pandas/pull/61603 | true | https://api.github.com/repos/pandas-dev/pandas/pulls/61603 | https://github.com/pandas-dev/pandas/pull/61603 | iabhi4 | 1 | Replaces `os.path `with `pathlib.Path` in `pandas_web.py`, as suggested by @datapythonista in [61578](https://github.com/pandas-dev/pandas/pull/61578). No functional changes, verified site generation remains correct
- [x] All [code checks passed](https://pandas.pydata.org/pandas-docs/dev/development/contributing_codeb... | [] | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | [
"I'm resolving the conflicts, it's my previous PR which just got merged"
] |
3,127,557,589 | 61,602 | BUG: Writing UUIDs fail | closed | 2025-06-07T21:30:22 | 2025-07-31T01:44:12 | 2025-07-31T01:43:59 | https://github.com/pandas-dev/pandas/issues/61602 | true | null | null | torchss | 3 | ### 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.org/docs/dev/ge... | [
"Bug",
"IO Parquet",
"Needs Triage",
"Upstream issue",
"Arrow"
] | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | [
"#After review, this seems to be an issue with PyArrow not Pandas\nSpecifically the convert_columns in from_pandas function of PyArrow as it is not able to work with the UUID library's UUID datatype.\n\n```python\nimport uuid\nimport pandas as pd\nimport pyarrow as pa\n\ndf = pd.DataFrame({'id': [uuid.uuid4(), uuid... |
3,127,419,533 | 61,601 | WEB: remove "String data type" from "Roadmap points pending a PDEP" section. | closed | 2025-06-07T19:35:18 | 2025-06-08T16:54:58 | 2025-06-08T16:00:49 | https://github.com/pandas-dev/pandas/pull/61601 | true | https://api.github.com/repos/pandas-dev/pandas/pulls/61601 | https://github.com/pandas-dev/pandas/pull/61601 | simonjayhawkins | 1 | > pandas is in the process of moving roadmap points to PDEPs (implemented in August 2022). During the transition, some roadmap points will exist as PDEPs, while others will exist as sections below.
This one is now covered by PDEP-14 which has been accepted and therefore no longer pending a PDEP. | [
"Web"
] | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | [
"I think that point was obsolete for a long time before PDEP-14. Thanks for taking care of this @simonjayhawkins "
] |
3,127,271,808 | 61,600 | DOC/ENH: Holiday exclusion argument | closed | 2025-06-07T17:07:21 | 2025-06-14T11:55:33 | 2025-06-13T16:11:42 | https://github.com/pandas-dev/pandas/pull/61600 | true | https://api.github.com/repos/pandas-dev/pandas/pulls/61600 | https://github.com/pandas-dev/pandas/pull/61600 | sharkipelago | 4 | - [x] closes #54382 (Replace xxxx with the GitHub issue number)
- [x] [Tests added and passed](https://pandas.pydata.org/pandas-docs/dev/development/contributing_codebase.html#writing-tests) if fixing a bug or adding a new feature
- [x] All [code checks passed](https://pandas.pydata.org/pandas-docs/dev/development/co... | [
"Frequency"
] | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | [
"I'm trying to figure out what the Pyodide test failing means, but struggling a bit. @mroeschke any insight in where I should look to resolve the failed check? \r\n\r\nAlso trying to just rerun the checks, but couldn't figure out how to do that without making an empty commit ",
"> I'm trying to figure out what th... |
3,127,184,241 | 61,599 | PDEP-18: Nullable Object Dtype | open | 2025-06-07T15:39:36 | 2025-07-28T00:09:55 | null | https://github.com/pandas-dev/pandas/pull/61599 | true | https://api.github.com/repos/pandas-dev/pandas/pulls/61599 | https://github.com/pandas-dev/pandas/pull/61599 | simonjayhawkins | 61 | as per PDEP-1
> The initial status of a PDEP will be Status: Draft. This will be changed to Status: Under discussion by the author(s), when they are ready to proceed with the decision making process.
but comments are surely welcome in the meantime. | [
"Stale",
"PDEP"
] | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | [
"“Object” analogous to “Float64”?",
"At least to me the PDEP will be easier to read (and comment on) if you limit the line width, to 80 or similar.\r\n\r\nThe idea sounds good, it'd be good if you can provide information on how using a boolean mask compares to having `pandas.NA` inside the main array.",
"> At l... |
3,127,031,047 | 61,598 | BUG: Dangerous inconsistency: `~` operator changes behavior based on context outside a target. | closed | 2025-06-07T13:43:53 | 2025-06-16T01:24:50 | 2025-06-13T08:35:04 | https://github.com/pandas-dev/pandas/issues/61598 | true | null | null | monagai | 4 | ### 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.org/docs/dev/ge... | [
"Usage Question"
] | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | [
"I believe the way to do what you want is simply\n\n```python3\n~((df['B'] > 3) & (df['C'] < 8)\n```\n\nThis keeps all the math within pandas and returns a boolean Series.\n\nWhen you call\n\n```python3\ndf.apply(lambda x: ~((x['B'] > 3) & (x['C'] < 8)), axis=1)\n```\n\nyou are expressly telling the system that you... |
3,126,754,876 | 61,597 | ENH: improve optional import error message | closed | 2025-06-07T09:16:15 | 2025-06-30T18:16:22 | 2025-06-30T18:16:14 | https://github.com/pandas-dev/pandas/pull/61597 | true | https://api.github.com/repos/pandas-dev/pandas/pulls/61597 | https://github.com/pandas-dev/pandas/pull/61597 | KevsterAmp | 5 | - [x] closes #61521 (Replace xxxx with the GitHub issue number)
- [x] [Tests added and passed](https://pandas.pydata.org/pandas-docs/dev/development/contributing_codebase.html#writing-tests) if fixing a bug or adding a new feature
- [x] All [code checks passed](https://pandas.pydata.org/pandas-docs/dev/development/co... | [
"Error Reporting"
] | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | [
"I'm not sure how to fix the CI errors: \r\n```\r\nError: Failed to CreateArtifact: Received non-retryable error: Failed request: (409) Conflict: an artifact with this name already exists on the workflow run\r\n```",
"One change is missing: https://github.com/pandas-dev/pandas/blob/675c81c9dc82ff9be797c94f3fc8ddd... |
3,126,739,587 | 61,596 | VOTE: Voting issue for PDEP-15: Reject adding PyArrow as a required dependency | closed | 2025-06-07T09:02:40 | 2025-07-17T10:40:25 | 2025-07-17T10:40:25 | https://github.com/pandas-dev/pandas/issues/61596 | true | null | null | datapythonista | 21 | ### Locked issue
- [x] I locked this voting issue so that only voting members are able to cast their votes or comment on this issue.
### PDEP number and title
PDEP-15: Reject PDEP-10
### Pull request with discussion
https://github.com/pandas-dev/pandas/pull/58623
### Rendered PDEP for easy reading
https://githu... | [
"Vote"
] | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | [
"-1\n\nWhile there are surely some challenges and costs of requiring PyArrow, I think the benefits of already requiring PyArrow in pandas 3.0 are enough to justify the requirement. If pandas becomes simpler, faster and better for most users, and for the development of the project, and the cost is few edge cases hav... |
3,126,190,691 | 61,595 | Add table of contents support to ecosystem page | closed | 2025-06-07T00:46:04 | 2025-06-13T17:11:49 | 2025-06-13T17:11:48 | https://github.com/pandas-dev/pandas/pull/61595 | true | https://api.github.com/repos/pandas-dev/pandas/pulls/61595 | https://github.com/pandas-dev/pandas/pull/61595 | akafle01 | 5 | This PR adds a table of contents to the Ecosystem page using the Markdown `TocExtension`.
- Inserted `[TOC]` placeholder in `ecosystem.md`
- Enabled `toc` extension in `web.py`
- Configured `toc_depth` for h2 and h3 headers
- Closes #61587
| [
"Web"
] | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | [
"@akafle01 do you have time to continue the work on this?",
"> @akafle01 do you have time to continue the work on this?\r\n\r\nYes I will work on it today",
"/preview",
"Website preview of this PR available at: https://pandas.pydata.org/preview/pandas-dev/pandas/61595/",
"Thanks @akafle01 for the contributi... |
3,125,854,805 | 61,594 | CI: Fix slow mamba solver issue by limiting boto3 versions | closed | 2025-06-06T21:01:41 | 2025-06-13T15:34:03 | 2025-06-13T14:34:12 | https://github.com/pandas-dev/pandas/pull/61594 | true | https://api.github.com/repos/pandas-dev/pandas/pulls/61594 | https://github.com/pandas-dev/pandas/pull/61594 | datapythonista | 12 | Closes #61531
Probably better to rerun the CI 3 or 4 times to be sure this is the problem and the solution. But based on local tests, seems like boto3 has a huge number of versions (they release almost every day), and that's the problem with the mamba solver. Limiting the number of versions provided to the solver sh... | [
"CI",
"Dependencies"
] | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | [
"This doesn't seem to work. Removing `boto3` from the environment seems to fix the problem locally, I thought limiting the options would also fix it. But seems like even pinning to a specific version doesn't work. I guess the problem may be with a `boto3` dependency, but not too sure.",
"The dependencies for `bot... |
3,125,680,830 | 61,593 | WEB: Restore website width and improve table of contents style | closed | 2025-06-06T19:28:04 | 2025-06-08T12:47:57 | 2025-06-08T12:47:50 | https://github.com/pandas-dev/pandas/pull/61593 | true | https://api.github.com/repos/pandas-dev/pandas/pulls/61593 | https://github.com/pandas-dev/pandas/pull/61593 | datapythonista | 1 | Follow up of #58791
This restore the website width (happy to make the content of PDEPs narrower, but it's a bit trickier so I'll leave it to another PR).
I also styled the table of contents more similar to the code blocks, which personally I think it looks a bit nicer.
Before:
![Screenshot at 2025-06-06 23-23... | [
"Web"
] | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | [
"Thanks @datapythonista "
] |
3,125,627,528 | 61,592 | CI: Update Python version to 3.11 in environment.yml | closed | 2025-06-06T19:01:57 | 2025-06-06T20:57:23 | 2025-06-06T20:57:16 | https://github.com/pandas-dev/pandas/pull/61592 | true | https://api.github.com/repos/pandas-dev/pandas/pulls/61592 | https://github.com/pandas-dev/pandas/pull/61592 | datapythonista | 1 | xref #61585
Let's pin to 3.11 for now (let's see if this doesn't break the CI), and we can continue the discussion on unpinning if needed.
| [
"CI",
"Dependencies"
] | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | [
"Thanks @datapythonista "
] |
3,125,543,454 | 61,591 | WEB: Moving maintainers to inactive status | closed | 2025-06-06T18:27:15 | 2025-06-06T22:09:23 | 2025-06-06T22:09:23 | https://github.com/pandas-dev/pandas/pull/61591 | true | https://api.github.com/repos/pandas-dev/pandas/pulls/61591 | https://github.com/pandas-dev/pandas/pull/61591 | datapythonista | 2 | A sad PR, but after checking with some maintainers, they confirmed that they became inactive and wish to be changed status. I think 3 more people will also be moved unfortunately, but still waiting for confirmation from them.
| [
"Admin",
"Web"
] | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | [
"/preview",
"Website preview of this PR available at: https://pandas.pydata.org/preview/pandas-dev/pandas/61591/"
] |
3,125,346,433 | 61,590 | RLS: 2.3.1 | closed | 2025-06-06T17:01:06 | 2025-07-28T16:12:17 | 2025-07-28T16:12:16 | https://github.com/pandas-dev/pandas/issues/61590 | true | null | null | mroeschke | 13 | Placeholder issue _if_ we decide to release 2.3.1. At the time of writing this issue, it's expected that pandas 3.0 would be the next version https://github.com/pandas-dev/pandas/issues/57064
Notable tasks for 2.3.1:
- [x] Re-enable Python 3.9 support (https://github.com/pandas-dev/pandas/issues/61563, https://github... | [
"Release"
] | 3 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | [
"Thanks @mroeschke for opening this issue.\n\n> Placeholder issue _if_ we decide to release 2.3.1.\n\nRLS 2.3 was driven by the need to release to the community for evaluation/experimentation the new np.nan variant of the nullable string dtype (both object fallback and pyarrow backed).\n\nSo it would be, to me, a r... |
3,125,298,226 | 61,589 | Avoid re-enabling the GIL at runtime | closed | 2025-06-06T16:43:49 | 2025-06-06T18:36:16 | 2025-06-06T18:36:09 | https://github.com/pandas-dev/pandas/pull/61589 | true | https://api.github.com/repos/pandas-dev/pandas/pulls/61589 | https://github.com/pandas-dev/pandas/pull/61589 | lysnikolaou | 1 | The GIL gets dynamically reenabled because the shared utility Cython build does not include the `freethreading_compatible` directive.
- [X] All [code checks passed](https://pandas.pydata.org/pandas-docs/dev/development/contributing_codebase.html#pre-commit).
- [X] Added [type annotations](https://pandas.pydata.org/... | [
"Build",
"Internals"
] | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | [
"Thanks @lysnikolaou "
] |
3,124,922,046 | 61,588 | CI: Test pandas with numpy 1.26 | closed | 2025-06-06T14:17:38 | 2025-07-08T15:44:44 | 2025-07-08T15:44:44 | https://github.com/pandas-dev/pandas/issues/61588 | true | null | null | datapythonista | 5 | See #60154
We should add the build and fix the existing errors | [
"Testing",
"CI",
"Dependencies",
"good first issue"
] | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | [
"take",
"I did some deep testing across numpy versions and here’s what I’m seeing: The existing `xfail` condition for `np.float32(1.1)` was correct in spirit, this behavior starts changing already in numpy `1.25`, not just `1.26`.\n\nIf we only add `np_version_gte1p26` to `xfail`, tests still fail under numpy `1.... |
3,124,863,602 | 61,587 | WEB: Add table of content for the Ecosystem page | closed | 2025-06-06T13:56:03 | 2025-06-16T09:09:07 | 2025-06-16T09:09:07 | https://github.com/pandas-dev/pandas/issues/61587 | true | null | null | datapythonista | 4 | We did it for the PDEP pages here: #58791
I don't think it should be difficult to also add a table of contents for the ecosystem page, which is quite large and not so easy to find things | [
"good first issue",
"Web"
] | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | [
"Hi, I would like to work on this.",
"Hi, priya here\nI would like to work on this issue",
"take\n",
"This is done now"
] |
3,124,712,062 | 61,586 | Update whatsnew for issue #53115 | closed | 2025-06-06T12:56:51 | 2025-06-09T17:14:13 | 2025-06-09T17:14:06 | https://github.com/pandas-dev/pandas/pull/61586 | true | https://api.github.com/repos/pandas-dev/pandas/pulls/61586 | https://github.com/pandas-dev/pandas/pull/61586 | fbourgey | 1 | https://github.com/pandas-dev/pandas/pull/60898 | [
"Docs"
] | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | [
"Thanks @fbourgey "
] |
3,124,580,897 | 61,585 | Unpin Python version in the development environment | open | 2025-06-06T12:03:21 | 2025-06-06T18:57:42 | null | https://github.com/pandas-dev/pandas/issues/61585 | true | null | null | datapythonista | 5 | xref #61555
Our base conda environment `environment.yml` is used locally by pandas developers (contributors and maintainers), and for some CI jobs, like building the documentation. For stability, we pinned the version of Python to a specific version (currently `python=3.10`). As new versions of Python are released, th... | [
"CI",
"Needs Discussion",
"Dependencies"
] | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | [
"If we don't pin to the minimum supported version, I fear contributors will submit code that is only supported on higher versions and then have to debug-via-CI. That is not a good experience. \n\nI think we should continue to push contributors to use the minimum Python version by pinning it rather than removing the... |
3,124,513,901 | 61,584 | Proposal to allow third-party engines for readers and writers | open | 2025-06-06T11:33:20 | 2025-06-06T11:33:43 | null | https://github.com/pandas-dev/pandas/issues/61584 | true | null | null | datapythonista | 0 | In [PDEP-9](https://pandas.pydata.org/pdeps/0009-io-extensions.html) it was discussed the possibility of allowing third-party packages to automatically add `pandas.read_<format>` functions and `DataFrame.to_<format>` methods. There was a main challenges that made the proposal not move forward: the complexity of managin... | [
"Enhancement",
"IO Data",
"API Design"
] | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | [] |
3,124,326,875 | 61,583 | BUG: StataWriter returns ascii error when length of string is < 2045, but encoded length is > 2045 | closed | 2025-06-06T10:14:19 | 2025-06-30T18:14:30 | 2025-06-30T18:14:30 | https://github.com/pandas-dev/pandas/issues/61583 | true | null | null | Danferno | 1 | ### 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.org/docs/dev/ge... | [
"Bug",
"IO Stata",
"Needs Triage"
] | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | [
"take\n"
] |
3,124,305,189 | 61,582 | BUG: Require sample weights to sum to less than 1 when replace = True | closed | 2025-06-06T10:05:48 | 2025-07-11T02:27:23 | 2025-07-11T02:27:15 | https://github.com/pandas-dev/pandas/pull/61582 | true | https://api.github.com/repos/pandas-dev/pandas/pulls/61582 | https://github.com/pandas-dev/pandas/pull/61582 | microslaw | 2 | - [x] closes #61516
- [x] [Tests added and passed](https://pandas.pydata.org/pandas-docs/dev/development/contributing_codebase.html#writing-tests) if fixing a bug or adding a new feature
- [x] All [code checks passed](https://pandas.pydata.org/pandas-docs/dev/development/contributing_codebase.html#pre-commit).
- [x]... | [
"Bug",
"Algos"
] | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | [
" 1. I've added this as an exception, but I've also considered doing this as a warning, since the issue is\r\n\r\n - easy to encounter - one case occured in user_guide\r\n - hard to explain within a short error message - requires specific equation and some level of understanding of probability\r\n - has mi... |
3,123,767,543 | 61,581 | BUG: pd.DataFrame.mul has not support fill_value? | open | 2025-06-06T06:15:20 | 2025-08-19T21:47:23 | null | https://github.com/pandas-dev/pandas/issues/61581 | true | null | null | TungPhaSanh | 12 | ### 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.org/docs/dev/ge... | [
"Bug"
] | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | [
"Hi @TungPhaSanh ,\n\nIt seems the example code doesn't work because `s` only has 3 elements - I think it needs 4.\n\nI have tried this on the main branch, but `mul` seems to work fine when `fill_value=0`.\n\n```python\n>>> import pandas as pd\n>>> import numpy as np\n\n>>> df = pd.DataFrame(np.arange(12).reshape(3... |
3,123,743,755 | 61,580 | DOC: Fix typos | closed | 2025-06-06T06:01:54 | 2025-06-06T13:08:36 | 2025-06-06T13:08:35 | https://github.com/pandas-dev/pandas/pull/61580 | true | https://api.github.com/repos/pandas-dev/pandas/pulls/61580 | https://github.com/pandas-dev/pandas/pull/61580 | omahs | 1 | - [ ] closes #xxxx (Replace xxxx with the GitHub issue number)
- [ ] [Tests added and passed](https://pandas.pydata.org/pandas-docs/dev/development/contributing_codebase.html#writing-tests) if fixing a bug or adding a new feature
- [ ] All [code checks passed](https://pandas.pydata.org/pandas-docs/dev/development/con... | [
"Docs"
] | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | [
"pre-commit.ci autofix"
] |
3,123,461,220 | 61,579 | `pandas.__version__` is `2.3.0+4.g1dfc98e16a` in pandas 2.3.0 and python 3.9, not `2.3.0` | closed | 2025-06-06T02:49:46 | 2025-07-07T19:28:56 | 2025-07-07T19:28:56 | https://github.com/pandas-dev/pandas/issues/61579 | true | null | null | harupy | 9 | ## How to reproduce:
```
docker run --rm python:3.9 bash -c "pip install pandas && python -c 'import pandas; print(pandas.__version__)'"
```
## Output:
```sh
% docker run --rm python:3.9 bash -c "pip install pandas && python -c 'import pandas; print(pandas.__version__)'"
... # pip install logs
2.3.0+4.g1dfc98e16a
... | [
"Bug"
] | 0 | 0 | 0 | 0 | 3 | 0 | 0 | 0 | [
"@mroeschke Is this expected?",
"I can confirm this. \nThis breaks our pandas version check function in our sdk\nhttps://github.com/shinnytech/tqsdk-ci/actions/runs/15481907073/job/43589180749\n\n",
"@shinny-taojiachun `imp... |
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