pandas-dev/pandas issues and pull requests

#62462 - BUG: cannot use index to set values in `.iloc` for `Int64[pyarrow]` Series

Issue - State: closed - Opened by MarcoGorelli about 2 months ago - 2 comments
Labels: Bug, Indexing, Regression, Arrow

#62404 - Avoid reindexing values assigned to a multi-index when cols_droplevel contains empty values

Pull Request - State: closed - Opened by matiaslindgren about 2 months ago
Labels: Indexing, MultiIndex

#62287 - ENH: Support `method` and `tolerance` kwargs in `Index.slice_indexer`

Issue - State: closed - Opened by TomNicholas 2 months ago - 1 comment
Labels: Enhancement, Indexing, Needs Info

#62245 - TST: add regression test for GH#54409 (tz-aware NaT indexing with loc)

Pull Request - State: closed - Opened by skalwaghe-56 3 months ago - 5 comments
Labels: Testing, Indexing

#62144 - BUG / API: setitem on pandas object fails if underlying numpy array is readonly

Issue - State: open - Opened by jorisvandenbossche 3 months ago
Labels: Indexing, API Design

#61743 - BUG: Assigning boolean series with boolean indexer

Pull Request - State: closed - Opened by yuanx749 5 months ago
Labels: Bug, Indexing, PDEP6-related

#61743 - BUG: Assigning boolean series with boolean indexer

Pull Request - State: closed - Opened by yuanx749 5 months ago - 1 comment
Labels: Bug, Indexing, PDEP6-related

#61537 - BUG: use of iloc with heterogeneous DataFrame sometimes performs undocumented conversions

Issue - State: open - Opened by illbebach 6 months ago
Labels: Bug, Indexing, Dtype Conversions, Needs Triage

#61527 - ENH: Implement DataFrame.select

Pull Request - State: closed - Opened by datapythonista 6 months ago - 22 comments
Labels: Enhancement, Indexing, API Design

#61527 - ENH: Implement DataFrame.select

Pull Request - State: closed - Opened by datapythonista 6 months ago - 22 comments
Labels: Enhancement, Indexing, API Design

#61522 - ENH: Implement select to select columns

Issue - State: open - Opened by datapythonista 6 months ago
Labels: Indexing, Needs Discussion

#61512 - BUG: Cannot sort by columns named None

Issue - State: closed - Opened by zvun 6 months ago - 1 comment
Labels: Bug, Indexing, Sorting

#61471 - DOC: Improve lookup documentation

Pull Request - State: closed - Opened by stevenae 6 months ago - 2 comments
Labels: Docs, Indexing

#61456 - PERF: Setting an item of incompatible dtype

Issue - State: open - Opened by muhannad125 6 months ago - 1 comment
Labels: Indexing, Performance, Needs Info

#61433 - BUG: Some `ExtensionArray`s can return 0-d Elements

Issue - State: open - Opened by ilan-gold 6 months ago - 4 comments
Labels: Bug, Indexing, Needs Discussion, ExtensionArray

#61381 - Fix alignment in Series subtraction with MultiIndex, Index and NaN values (#60908)

Pull Request - State: closed - Opened by rit4rosa 7 months ago - 3 comments
Labels: Bug, Indexing, Missing-data, MultiIndex, Stale

#61381 - Fix alignment in Series subtraction with MultiIndex, Index and NaN values (#60908)

Pull Request - State: open - Opened by rit4rosa 7 months ago - 1 comment
Labels: Bug, Indexing, Missing-data, MultiIndex

#61360 - ENH: magic_case()

Issue - State: closed - Opened by VamsiAkella 7 months ago - 2 comments
Labels: Enhancement, Indexing, Closing Candidate

#61319 - ENH: grep-like select columns of a DataFrame by a part of their names

Issue - State: closed - Opened by kirisakow 7 months ago - 3 comments
Labels: Enhancement, Indexing, Needs Info

#61223 - BUG: setting item to iterable with .at fails when column doesn't exist or has wrong dtype

Issue - State: open - Opened by jbogar 8 months ago - 6 comments
Labels: Bug, Indexing, Needs Discussion

#61185 - ENH: Reimplement DataFrame.lookup

Pull Request - State: closed - Opened by stevenae 8 months ago - 19 comments
Labels: Enhancement, Indexing, Stale

#61162 - ENH: Support `Series[bool]` as indexer for `iloc.getitem`

Pull Request - State: closed - Opened by arthurlw 8 months ago - 2 comments
Labels: Enhancement, Indexing

#61162 - ENH: Support `Series[bool]` as indexer for `iloc.getitem`

Pull Request - State: closed - Opened by arthurlw 8 months ago - 3 comments
Labels: Enhancement, Indexing

#61114 - BUG: Fix bug in reindexing of period columns after unstack

Pull Request - State: closed - Opened by snitish 8 months ago - 1 comment
Labels: Indexing, Period

#61026 - BUG: setting column with 2D object array raises

Issue - State: open - Opened by tonyyuyiding 9 months ago - 8 comments
Labels: Bug, Indexing

#60994 - BUG: `iloc` with `Series` as indexer fails for `getitem` but works with `setitem`

Issue - State: closed - Opened by luxedo 9 months ago - 9 comments
Labels: Bug, Indexing

#60973 - DOC: No warning in set_index() that previous index column is removed.

Issue - State: closed - Opened by ncotie 9 months ago - 3 comments
Labels: Docs, Indexing, Needs Discussion

#60908 - BUG: `ValueError: Length of values (5) does not match length of index (4)` when subtracting two series with MultIndex and Index and nan values

Issue - State: open - Opened by ssche 9 months ago
Labels: Bug, Indexing, Missing-data, MultiIndex, Needs Triage

#60903 - BUG: Adding DataFrames with misaligned MultiIndex produces NaN despite fill_value=0

Issue - State: closed - Opened by michaelpradel 9 months ago - 3 comments
Labels: Bug, Indexing, Numeric Operations, MultiIndex

#60649 - Backport PR #60454 on branch 2.3.x (String dtype: coerce missing values in indexers for string dtype Index)

Pull Request - State: closed - Opened by meeseeksmachine 11 months ago - 1 comment
Labels: Indexing, Missing-data, Strings

#60649 - Backport PR #60454 on branch 2.3.x (String dtype: coerce missing values in indexers for string dtype Index)

Pull Request - State: closed - Opened by meeseeksmachine 11 months ago - 1 comment
Labels: Indexing, Missing-data, Strings

#60463 - BUG: Fix keyerror bug when indexing multiindex columns with NaT values

Pull Request - State: closed - Opened by snitish 12 months ago
Labels: Indexing, Missing-data

#60463 - BUG: Fix keyerror bug when indexing multiindex columns with NaT values

Pull Request - State: closed - Opened by snitish 12 months ago - 1 comment
Labels: Indexing, Missing-data

#60454 - String dtype: coerce missing values in indexers for string dtype Index

Pull Request - State: open - Opened by jorisvandenbossche 12 months ago
Labels: Indexing, Missing-data, Strings

#60454 - String dtype: coerce missing values in indexers for string dtype Index

Pull Request - State: closed - Opened by jorisvandenbossche 12 months ago - 2 comments
Labels: Indexing, Missing-data, Strings

#60453 - [backport 2.3.x] String dtype: use ObjectEngine for indexing for now correctness over performance (#60329)

Pull Request - State: closed - Opened by jorisvandenbossche 12 months ago
Labels: Indexing, Strings

#60388 - BUG: cannot locate multiIndex column when NaT is in column

Issue - State: closed - Opened by CraigMeng 12 months ago - 3 comments
Labels: Bug, Indexing, Missing-data, MultiIndex, PDEP missing values

#60355 - BUG: index.has_duplicates on a subset of a dataframe sometimes returns an incorrect outcome

Issue - State: closed - Opened by HungryZebra563 about 1 year ago - 2 comments
Labels: Bug, Indexing, Needs Info

#60329 - String dtype: use ObjectEngine for indexing for now correctness over performance

Pull Request - State: closed - Opened by jorisvandenbossche about 1 year ago - 5 comments
Labels: Indexing, Strings

#60329 - String dtype: use ObjectEngine for indexing for now correctness over performance

Pull Request - State: closed - Opened by jorisvandenbossche about 1 year ago - 2 comments
Labels: Indexing, Strings

#60218 - ERR: consistent error messages for unsupported setitem values

Issue - State: open - Opened by jorisvandenbossche about 1 year ago
Labels: Indexing, Error Reporting, API - Consistency

#60203 - PERF: selection inside a row using a list of labels 30 slower than selection by the same individual labels

Issue - State: closed - Opened by xstreck1 about 1 year ago - 3 comments
Labels: Indexing, Performance, Closing Candidate

#60052 - BUG: Fix incosistent behavior of 2d-indexed loc-set to Series #59933

Pull Request - State: closed - Opened by anzber about 1 year ago - 10 comments
Labels: Bug, Indexing

#59537 - Patch - updates maybe_indices_to_slice to use intp_t

Pull Request - State: closed - Opened by benjamindonnachie over 1 year ago - 12 comments
Labels: Indexing, Internals, Stale

#59537 - Patch - updates maybe_indices_to_slice to use intp_t

Pull Request - State: closed - Opened by benjamindonnachie over 1 year ago - 8 comments
Labels: Indexing, Internals, Stale

#59493 - Issue #59098: fix bug for default level behavior in xs function

Pull Request - State: closed - Opened by ssf0409 over 1 year ago - 1 comment
Labels: Bug, Indexing

#59493 - Issue #59098: fix bug for default level behavior in xs function

Pull Request - State: closed - Opened by ssf0409 over 1 year ago - 1 comment
Labels: Bug, Indexing

#59335 - BUG: Fix 57735

Pull Request - State: closed - Opened by matiaslindgren over 1 year ago
Labels: Indexing

#59294 - Surprising behavior: set_index cannot set a MultiIndex from a tuple, only a list

Issue - State: closed - Opened by tadamcz over 1 year ago - 4 comments
Labels: Indexing, Closing Candidate

#59286 - BUG: Hash and compare tuple subclasses as builtin tuples

Pull Request - State: closed - Opened by matiaslindgren over 1 year ago - 1 comment
Labels: Indexing, Nested Data

#59286 - BUG: Hash and compare tuple subclasses as builtin tuples

Pull Request - State: closed - Opened by matiaslindgren over 1 year ago
Labels: Indexing, Nested Data

#58646 - CLN: int slice on Index[float] as positional

Pull Request - State: closed - Opened by mroeschke over 1 year ago - 1 comment
Labels: Indexing, Clean

#58646 - CLN: int slice on Index[float] as positional

Pull Request - State: closed - Opened by mroeschke over 1 year ago - 1 comment
Labels: Indexing, Clean

#58626 - CLN: callable to Series.iloc returning a tuple

Pull Request - State: open - Opened by mroeschke over 1 year ago
Labels: Indexing, Clean

#58626 - CLN: callable to Series.iloc returning a tuple

Pull Request - State: closed - Opened by mroeschke over 1 year ago
Labels: Indexing, Clean

#58616 - BUG: Fix arrow extension array assignment by repeated key

Pull Request - State: closed - Opened by hombit over 1 year ago - 2 comments
Labels: Indexing, Arrow

#58449 - CLN: Changed the behavior of `Series.[gs]etitem ` with an integer slice on objects with a floating-dtype index to a positional instead of label-based slicing

Pull Request - State: closed - Opened by natmokval over 1 year ago - 1 comment
Labels: Indexing, Clean

#58449 - CLN: Changed the behavior of `Series.[gs]etitem ` with an integer slice on objects with a floating-dtype index to a positional instead of label-based slicing

Pull Request - State: closed - Opened by natmokval over 1 year ago - 1 comment
Labels: Indexing, Clean

#58347 - 1d array

Pull Request - State: closed - Opened by gb0808 over 1 year ago - 1 comment
Labels: Indexing

#58347 - 1d array

Pull Request - State: closed - Opened by gb0808 over 1 year ago - 1 comment
Labels: Indexing

#58301 - BUG: Setting values on DataFrame with multi-index .loc(axis=0) access adds columns

Pull Request - State: closed - Opened by eshaready over 1 year ago
Labels: Indexing

#58301 - BUG: Setting values on DataFrame with multi-index .loc(axis=0) access adds columns

Pull Request - State: closed - Opened by eshaready over 1 year ago - 2 comments
Labels: Indexing

#58282 - BUG: DataFrameGroupBy.getitem fails with tuples on multi-level column objects

Issue - State: open - Opened by tehunter over 1 year ago - 2 comments
Labels: Bug, Groupby, Indexing, API - Consistency

#58043 - BUG: DataFrame slice selection treated as hashable in Python 3.12 #57500

Pull Request - State: closed - Opened by tehunter over 1 year ago - 2 comments
Labels: Indexing, MultiIndex

#58043 - BUG: DataFrame slice selection treated as hashable in Python 3.12 #57500

Pull Request - State: closed - Opened by tehunter over 1 year ago - 1 comment
Labels: Indexing, MultiIndex

#57994 - DOC: DataFrame.reset_index names param can't be a tuple as docs state

Issue - State: closed - Opened by alexandermorgan over 1 year ago - 6 comments
Labels: Docs, Indexing

#57922 - BUG: NamedTuples do no match tuples in pandas.Index

Issue - State: closed - Opened by Apteryx0 over 1 year ago - 6 comments
Labels: Bug, Indexing

#57770 - PERF: RangeIndex.getitem with integers return RangeIndex

Pull Request - State: closed - Opened by mroeschke over 1 year ago - 2 comments
Labels: Indexing, Performance, Index

#57770 - PERF: RangeIndex.getitem with integers return RangeIndex

Pull Request - State: closed - Opened by mroeschke over 1 year ago - 2 comments
Labels: Indexing, Performance, Index

#57765 - BUG: Setting a numpy array as a column in Pandas uses only the first column of the array.

Issue - State: open - Opened by kgourgou over 1 year ago - 5 comments
Labels: Bug, Indexing, Needs Discussion

#57750 - BUG: .loc operation cannot locate existing index when having single string as index for dataframe ('string',)

Issue - State: open - Opened by carlonlv over 1 year ago - 4 comments
Labels: Bug, Indexing, Needs Discussion

#57735 - BUG: ValueError with loc[] = (Regression 2.1.0)

Issue - State: closed - Opened by rxxg over 1 year ago - 4 comments
Labels: Bug, Indexing

#57621 - Potential regression induced by PR #57402

Issue - State: closed - Opened by rhshadrach over 1 year ago - 1 comment
Labels: Indexing, Performance, Regression

#57614 - DOC: Add `DataFrame.isetitem` method

Pull Request - State: closed - Opened by luke396 over 1 year ago - 2 comments
Labels: Docs, Indexing

#57614 - DOC: Add `DataFrame.isetitem` method

Pull Request - State: closed - Opened by luke396 over 1 year ago - 1 comment
Labels: Docs, Indexing

#57409 - ENH: df.columns returns list of series

Issue - State: closed - Opened by R3dan almost 2 years ago - 6 comments
Labels: Enhancement, Indexing, Needs Info, Closing Candidate

#57343 - Remove support for slices in take

Pull Request - State: closed - Opened by phofl almost 2 years ago
Labels: Indexing

#57343 - Remove support for slices in take

Pull Request - State: closed - Opened by phofl almost 2 years ago - 1 comment
Labels: Indexing

#57287 - Fixed BUG: Using NamedTuples with .iloc fails #48188

Pull Request - State: closed - Opened by MkMayo almost 2 years ago - 3 comments
Labels: Bug, Indexing

#57287 - Fixed BUG: Using NamedTuples with .iloc fails #48188

Pull Request - State: closed - Opened by MkMayo almost 2 years ago - 3 comments
Labels: Bug, Indexing

#57277 - DOC: Wrong generalization about slice indexing

Issue - State: closed - Opened by memeplex almost 2 years ago - 2 comments
Labels: Docs, Indexing

#57142 - Backport PR #57061 on branch 2.2.x (REGR: non-unique, masked dtype index raising IndexError)

Pull Request - State: closed - Opened by meeseeksmachine almost 2 years ago
Labels: Indexing, Regression

#57142 - Backport PR #57061 on branch 2.2.x (REGR: non-unique, masked dtype index raising IndexError)

Pull Request - State: closed - Opened by meeseeksmachine almost 2 years ago
Labels: Indexing, Regression

#57061 - REGR: non-unique, masked dtype index raising IndexError

Pull Request - State: closed - Opened by lukemanley almost 2 years ago - 1 comment
Labels: Indexing, Regression

#57061 - REGR: non-unique, masked dtype index raising IndexError

Pull Request - State: closed - Opened by lukemanley almost 2 years ago
Labels: Indexing, Regression

#57027 - BUG: Getting "Out of bounds on buffer access" error when .loc indexing a non-unique index with Int64 dtype

Issue - State: closed - Opened by dalejung almost 2 years ago
Labels: Bug, Indexing, Regression

#57004 - BUG: df.iloc not working with NamedTuple

Pull Request - State: closed - Opened by yuanx749 almost 2 years ago - 4 comments
Labels: Bug, Indexing, Stale

#57004 - BUG: df.iloc not working with NamedTuple

Pull Request - State: closed - Opened by yuanx749 almost 2 years ago - 4 comments
Labels: Bug, Indexing, Stale

#56973 - PERF: Memory Issue with DataFrame Conditional Filtering: Impact on Index Type with df['x'] > x

Issue - State: closed - Opened by HarryCollins2 almost 2 years ago - 2 comments
Labels: Indexing, Performance, Closing Candidate

#56872 - wip: depr partial row-wise multi-column-wise enlargement

Pull Request - State: closed - Opened by MarcoGorelli almost 2 years ago - 1 comment
Labels: Indexing, Deprecate

#56872 - wip: depr partial row-wise multi-column-wise enlargement

Pull Request - State: closed - Opened by MarcoGorelli almost 2 years ago - 1 comment
Labels: Indexing, Deprecate

#56856 - BUG: direct assignment using loc doesn't work without values

Issue - State: closed - Opened by yunkypunky almost 2 years ago - 2 comments
Labels: Bug, Indexing, Closing Candidate

#56853 - BUG: Insert then delete column into MultiIndex with timestamps leads to RecursionError

Issue - State: closed - Opened by traubms almost 2 years ago - 7 comments
Labels: Bug, Indexing, MultiIndex, good first issue, Needs Tests

#56773 - BUG: NDFrame.setattr provides undesired behavior when extending: can we remove or change the "get before set" block?

Issue - State: closed - Opened by dhodcz2 almost 2 years ago - 3 comments
Labels: Enhancement, Indexing, Closing Candidate

GitHub / pandas-dev/pandas issues and pull requests