Owner
pandas-dev
4 indexed repositories · View on GitHub
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pandas
Flexible and powerful data analysis / manipulation library for Python, providing labeled data structures similar to R data.frame objects,...
Python · 50307 stars
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pandas-stubs
Public type stubs for pandas
Python · 331 stars
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pandas-governance
Project governance documents for the pandas Project
36 stars
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asv-runner
https://pandas-dev.github.io/asv-runner/
Python · 3 stars
Issues somebody may already be working on are listed last. List everything by date
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ENH: DataFrame.merge raises bare KeyError without saying which DataFrame is missing the key columnOpenEnhancement Needs Triage
Difficulty 3/5 Half a day Newbie friendliness 45/100
pandas-dev/pandas#71819 ·
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Master Tracker
Difficulty 4/5 Over a week Newbie friendliness 35/100
pandas-dev/pandas-stubs#2057 ·
Maintainers usually reply within 1 day
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Needs Triage Performance
Difficulty 3/5 Half a day Newbie friendliness 65/100
pandas-dev/pandas#71806 · 1 comment ·
Maintainers usually reply within 1 day
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Deprecate Needs Discussion Visualization
Difficulty 4/5 3-5 days Newbie friendliness 45/100
pandas-dev/pandas#71771 · 1 comment ·
Maintainers usually reply within 1 day
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`pd.isna()` and `pd.notna()` should accept a tupleMay be free again A pull request for this issue was closed without being merged. Openpandas_docs
Difficulty 2/5 1-3 hours Newbie friendliness 67/100
pandas-dev/pandas-stubs#2047 · 5 comments ·
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Bug Needs Triage
Difficulty 3/5 1-2 days Newbie friendliness 57/100
pandas-dev/pandas#71768 · 2 comments ·
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Difficulty 1/5 Under an hour Newbie friendliness 1/100
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Needs Triage
Difficulty 2/5 1-3 hours Newbie friendliness 76/100
pandas-dev/pandas#71755 · 3 comments ·
Maintainers usually reply within 1 day
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RLS: 3.1.x releasesOpenRelease
Difficulty 5/5 Over a week Newbie friendliness 15/100
pandas-dev/pandas#71477 ·
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Needs Discussion python_scalars
Difficulty 4/5 3-5 days Newbie friendliness 48/100
pandas-dev/pandas#71475 · 4 comments ·
Maintainers usually reply within 1 day
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Bug Categorical Complex Numeric Operations
Difficulty 4/5 3-5 days Newbie friendliness 46/100
pandas-dev/pandas-stubs#2024 ·
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CI Docs Testing
Difficulty 4/5 3-5 days Newbie friendliness 45/100
pandas-dev/pandas-stubs#2023 · 4 comments ·
Maintainers usually reply within 1 day
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Difficulty 4/5 3-5 days Newbie friendliness 48/100
pandas-dev/pandas-stubs#2014 · 1 comment ·
Maintainers usually reply within 1 day
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Difficulty 2/5 1-3 hours Newbie friendliness 45/100
pandas-dev/asv-runner#170 · 2 comments ·
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BUG: HDFStore.select with where, start/stop and chunksize returns wrong rowsMay be free again @NodeX-AR claimed this 11 days ago, and no pull request is open. OpenBug IO HDF5
Difficulty 2/5 1-3 hours Newbie friendliness 78/100
pandas-dev/pandas#71278 · 5 comments ·
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Needs Triage
Difficulty 3/5 1-2 days Newbie friendliness 76/100
pandas-dev/pandas#71274 ·
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ENH: support pd.col in pd.to_datetime and pd.to_numericMay be free again @sunildataanalytics claimed this 15 days ago, and no pull request is open. OpenEnhancement expressions Needs Discussion
Difficulty 3/5 1-2 days Newbie friendliness 68/100
pandas-dev/pandas#71259 · 1 comment ·
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BUG: Windows fatal exception: access violation in .core.algorithms.safe_sort() with Python 3.15OpenBug Python 3.15 Segfault Sorting Windows
Difficulty 4/5 3-5 days Newbie friendliness 25/100
pandas-dev/pandas#71254 · 3 comments ·
Maintainers usually reply within 1 day
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BUG: `DataFrame.fillna(axis=1)` rejects compatible `dict`/`Series` replacementsMay be free again @NodeX-AR claimed this 17 days ago, and no pull request is open. OpenBug Needs Triage
Difficulty 3/5 1-2 days Newbie friendliness 62/100
pandas-dev/pandas#71197 · 3 comments ·
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BUG: AttributeError: 'ArrowStringArray' object has no attribute 'squeeze'May be free again A pull request for this issue was closed without being merged. OpenBug Compat Needs Discussion
Difficulty 3/5 1-2 days Newbie friendliness 25/100
pandas-dev/pandas#71172 · 1 comment ·
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DOC: document `pd.Index.to_flat_index`May be free again @MannXo claimed this 17 days ago, and no pull request is open. OpenDocs Needs Discussion
Difficulty 2/5 1-3 hours Newbie friendliness 62/100
pandas-dev/pandas#71163 · 4 comments ·
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Difficulty 5/5 Over a week Newbie friendliness 12/100
pandas-dev/pandas-stubs#1987 ·
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pandas-stubs should use `typing_extensions.deprecated` instead of removing deprecated functionsOpen
Difficulty 3/5 1-2 days Newbie friendliness 35/100
pandas-dev/pandas-stubs#1985 · 11 comments ·
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API Design Enhancement Needs Discussion
Difficulty 5/5 Over a week Newbie friendliness 35/100
pandas-dev/pandas#71060 ·
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CI Master Tracker
Difficulty 5/5 Over a week Newbie friendliness 30/100
pandas-dev/pandas-stubs#1964 ·
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API Design Deprecate Needs Discussion
Difficulty 5/5 Over a week Newbie friendliness 35/100
pandas-dev/pandas#70135 ·
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Datetime Needs Discussion Non-Nano Timedelta
Difficulty 5/5 Over a week Newbie friendliness 35/100
pandas-dev/pandas#69920 ·
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API Design Apply Needs Discussion
Difficulty 5/5 Over a week Newbie friendliness 35/100
pandas-dev/pandas#69578 · 2 comments ·
Maintainers usually reply within 1 day
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Difficulty 3/5 1-2 days Newbie friendliness 45/100
pandas-dev/asv-runner#169 · 1 comment ·
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Difficulty 4/5 3-5 days Newbie friendliness 35/100
pandas-dev/asv-runner#168 · 2 comments ·
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Difficulty 4/5 3-5 days Newbie friendliness 35/100
pandas-dev/asv-runner#167 · 5 comments ·
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API Design Deprecate IO CSV Needs Discussion
Difficulty 5/5 Over a week Newbie friendliness 35/100
pandas-dev/pandas#68706 · 3 comments ·
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API: select_dtypesOpenAPI Design Needs Discussion
Difficulty 5/5 Over a week Newbie friendliness 42/100
pandas-dev/pandas#68703 · 8 comments ·
Maintainers usually reply within 1 day
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Dependencies Enhancement Needs Discussion
Difficulty 4/5 3-5 days Newbie friendliness 55/100
pandas-dev/pandas#68433 · 2 comments ·
Maintainers usually reply within 1 day
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BUG: mixed int64/float64 Index operations falsely match distinct labels above 2**53May be free again @Chetansahney claimed this 25 days ago, and no pull request is open. OpenAPI Design Closing Candidate Cross-Dtype Numerical Stability Dtype Conversions Index
Difficulty 4/5 3-5 days Newbie friendliness 48/100
pandas-dev/pandas#68372 · 8 comments ·
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API Design ExtensionArray Needs Discussion
Difficulty 5/5 Over a week Newbie friendliness 25/100
pandas-dev/pandas#67014 ·
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DOC, API: `read_*` methods alignment (and `to_*`)May be free again @utsab345 claimed this 57 days ago, and no pull request is open. OpenAPI - Consistency Docs Needs Discussion
Difficulty 5/5 Over a week Newbie friendliness 38/100
pandas-dev/pandas#67012 · 4 comments ·
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ENH: `ListAccessor.contains`Possibly taken @pourushsiddharth claimed this 2 days ago. OpenEnhancement Needs Triage
Difficulty 4/5 3-5 days Newbie friendliness 56/100
pandas-dev/pandas#71775 · 2 comments ·
Maintainers usually reply within 1 day
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BUG: read_csv fails with TypeError: open() argument 'mode' must be str, not int (with LocalPath)Possibly taken @thergupta2001 claimed this 2 days ago. OpenIO CSV Regression
Difficulty 3/5 1-2 days Newbie friendliness 67/100
pandas-dev/pandas#71769 · 3 comments · 1 assignee ·
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Narrower return types for `ExtensionDtype.empty` in subclassesPossibly taken @Prem-gosavi45 claimed this 1 day ago. Open
Difficulty 4/5 3-5 days Newbie friendliness 35/100
pandas-dev/pandas-stubs#2046 · 2 comments ·
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DOC: ExtensionDtype.empty is not in the API referencePossibly taken @MonikaDvorackova claimed this 2 days ago. OpenDocs Needs Triage
Difficulty 2/5 1-3 hours Newbie friendliness 77/100
pandas-dev/pandas#71766 · 4 comments ·
Maintainers usually reply within 1 day
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GroupBy rank/diff/rolling/expanding/ewm stubs still accept `axis` (and `selection`), which pandas 3 no longer acceptsPossibly taken A pull request linked to this issue is open or already merged. Open
Difficulty 2/5 1-3 hours Newbie friendliness 76/100
pandas-dev/pandas-stubs#2042 ·
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Create an overload for `MultiIndex.to_list()`Possibly taken @A-G0D claimed this 4 days ago. Open
Difficulty 2/5 1-3 hours Newbie friendliness 35/100
pandas-dev/pandas-stubs#2035 ·
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DOC: Add `MultiIndex.to_list()` to docs and indicate that it returns a list of tuplesPossibly taken @Prem-gosavi45 claimed this 3 days ago. OpenDocs
Difficulty 2/5 1-3 hours Newbie friendliness 76/100
pandas-dev/pandas#71742 · 7 comments · 1 assignee ·
Maintainers usually reply within 1 day
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BUG: DataFrame.to_string(max_cols=0) exceeds terminal width with uneven columnsPossibly taken @mncrftfrcnm claimed this 7 days ago. OpenBug Needs Triage
Difficulty 3/5 1-2 days Newbie friendliness 48/100
pandas-dev/pandas#71603 · 3 comments ·
Maintainers usually reply within 1 day
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BUG: pd.Series.map on dtype: datetime64[us] makes underlying data values array read-only - .transform does notPossibly taken @PerryLink claimed this 3 days ago. OpenApply Copy / view semantics Regression
Difficulty 4/5 3-5 days Newbie friendliness 55/100
pandas-dev/pandas#71567 · 2 comments · 1 assignee ·
Maintainers usually reply within 1 day
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BUG: pandas 3.1.0 fails to build on s390x — 'load_unaligned' is not a member of 'xsimd' in the scalar fallback TUPossibly taken @Alvaro-Kothe claimed this 7 days ago. OpenBug Build
pandas-dev/pandas#71548 · 2 comments · 1 assignee ·
Maintainers usually reply within 1 day
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BUG: ffill/bfill on a pyarrow-backed column without missing values returns a view, so modifying the result changes the originalPossibly taken @ryan1234814 claimed this 5 days ago. OpenBug Copy / view semantics
Difficulty 3/5 1-2 days Newbie friendliness 68/100
pandas-dev/pandas#71515 · 5 comments · 1 assignee ·
Maintainers usually reply within 1 day
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BUG: assert_frame_equal failure message hides float differences below display.precisionPossibly taken @naseweisssss claimed this 7 days ago. OpenBug Output-Formatting Testing
Difficulty 3/5 1-2 days Newbie friendliness 68/100
pandas-dev/pandas#71509 · 2 comments · 1 assignee ·
Maintainers usually reply within 1 day
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BUG: DataFrame.shift() with multiple periods returns incorrect columns for empty DataFramesPossibly taken @badrisatyam1-ctrl claimed this 8 days ago. OpenBug Needs Triage
Difficulty 2/5 1-3 hours Newbie friendliness 35/100
pandas-dev/pandas#71507 · 2 comments ·
Maintainers usually reply within 1 day
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