10 Pull requests merged by 10 people

• Restrict clipping of DataFrame.corr only when cov=False

  #61214 merged Apr 3, 2025

• Fix false friends in implicit string concatenation in tests

  #61228 merged Apr 3, 2025

• Fix binary operations on attrs for Series and DataFrame

  #59636 merged Apr 3, 2025

• DOC Removed excessive Plotly links in ecosystem.md

  #61227 merged Apr 3, 2025

• MNT: Bump dev pin on NumPy

  #60987 merged Apr 3, 2025

• DOC: Add details of dropna in DataFrame.pivot_table

  #61184 merged Apr 2, 2025

• DOC: Fix ES01 for pandas.api.extensions.ExtensionDtype

  #61215 merged Apr 2, 2025

• Fix #60494: query doesn't work on DataFrame integer column names

  #61207 merged Apr 1, 2025

• Bump pypa/cibuildwheel from 2.23.1 to 2.23.2

  #61205 merged Mar 31, 2025

• BUG: Fix AttributeError in pd.eval for method calls on binary operations

  #61198 merged Mar 31, 2025

10 Pull requests opened by 9 people

• BUG: fix to_json on period

  #61203 opened Mar 30, 2025

• BUG: OverflowError when fillna on DataFrame with a pd.Timestamp (#61208)

  #61216 opened Apr 2, 2025

• Fix #58421: Index[timestamp[pyarrow]].union with itself return object type

  #61219 opened Apr 2, 2025

• ENH: Create infrastructure for translations

  #61220 opened Apr 2, 2025

• BUG: Fix #57608: queries on categorical string columns in HDFStore.select() return unexpected results.

  #61225 opened Apr 3, 2025

• BUG: Fix #61221: Exception with unstack(sort=False) and NA in index.

  #61226 opened Apr 3, 2025

• BUG: Fix #61222: Keep index name when resampling with pyarrow dtype

  #61229 opened Apr 3, 2025

• BUG: Fix scatter plot colors in groupby context to match line plot behavior (#59846)

  #61233 opened Apr 5, 2025

• BUG: Fix DatetimeIndex timezone preservation when joining indexes with same timezone but different units

  #61234 opened Apr 5, 2025

• ENH: Add dropna parameter to Series.unique() (fixes #61209)

  #61235 opened Apr 5, 2025

13 Issues closed by 7 people

• ENH: Remove ArrowStringArray and StringDtype("pyarrow")

  #48469 closed Apr 4, 2025

• BUG: Negation of `.str.isnumeric()` changes `dtype` when `pd.NA` is present

  #61182 closed Apr 4, 2025

• BUG: binary operations don't propogate attrs depending on order with Series and/or DataFrame/Series

  #51607 closed Apr 3, 2025

• ENH: Implement loading and dumping to and from YAML

  #61224 closed Apr 3, 2025

• BUG: unstack incorrectly reshuffles data when sort=False

  #61217 closed Apr 3, 2025

• BUG: timedeltas.pyx.c varies between builds

  #60078 closed Apr 2, 2025

• BUG: `pivot_table` drops rows and columns despite values being non-`NaN`

  #61113 closed Apr 2, 2025

• BUG: DataFrame.corr clips values when cov=True

  #61213 closed Apr 2, 2025

• BUG: df.query("`1` == 0.1") failed with UndefinedVariableError: name 'BACKTICK_QUOTED_STRING_1' is not defined

  #60494 closed Apr 1, 2025

• BUG: pd.HDFStore(file, mode='a') increases file size unnecessarily when file exists and dataframe contains string-based columns

  #60823 closed Mar 31, 2025

• BUG: AttributeError on method call after binary operation in eval expression

  #61175 closed Mar 31, 2025

• BUG: DataFrame.min raises TypeError when column contains mixed types (e.g., np.nan and datetime)

  #61187 closed Mar 31, 2025

• Series dtype changes when a new row is added

  #21501 closed Mar 30, 2025

12 Issues opened by 11 people

• ENH: The method of obtaining a certain cell or slice of the dataframe is confusing and unclear

  #61232 opened Apr 4, 2025

• BUG: PyArrow timestamp type does not work with map() function

  #61231 opened Apr 4, 2025

• ENH: The row and column indexing mechanism of your dataframe is inefficient, leading to errors and unnecessary time consumption

  #61230 opened Apr 4, 2025

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

  #61223 opened Apr 3, 2025

• BUG: Index name lost when using "resample" with pyarrow dtypes

  #61222 opened Apr 3, 2025

• BUG: Exception with `unstack(sort=False)` and NA in index

  #61221 opened Apr 3, 2025

• QST: Should the absence of tzdata package affect the performance in any way ?

  #61218 opened Apr 2, 2025

• ENH: Add ignore_empty and ignore_all_na arguments to pd.concat

  #61210 opened Apr 1, 2025

• ENH: Consistent NA handling in `unique()`, and `nunique()`

  #61209 opened Mar 31, 2025

• BUG: OverflowError when fillna on DataFrame with a pd.Timestamp

  #61208 opened Mar 31, 2025

• BUG: round on object columns no longer raises a TypeError

  #61206 opened Mar 31, 2025

• BUG: DataFrame.min with skipna=True raises TypeError when column contains np.nan and datetime.date

  #61204 opened Mar 31, 2025

33 Unresolved conversations

Sometimes conversations happen on old items that aren’t yet closed. Here is a list of all the Issues and Pull Requests with unresolved conversations.

• ENH: Reimplement DataFrame.lookup

  #61185 commented on Apr 3, 2025 • 9 new comments

• BUG: Preserve column names in DataFrame.from_records when nrows=0

  #61143 commented on Apr 1, 2025 • 5 new comments

• BUG: Fix pyarrow categoricals not working for pivot and multiindex

  #61193 commented on Apr 4, 2025 • 3 new comments

• DataFrame.dtypes.to_json OverflowError: Maximum recursion level reached

  #61171 commented on Mar 31, 2025 • 2 new comments

• BUG: Improve ImportError message to suggest importing dependencies directly for full error details

  #61084 commented on Apr 5, 2025 • 2 new comments

• BUG(string dtype): groupby/resampler.min/max returns float on all NA strings

  #60985 commented on Mar 31, 2025 • 2 new comments

• BUG: Added deprecation warning to Timestamp constructor

  #61149 commented on Apr 5, 2025 • 1 new comment

• BUG: Timedelta created by to_timedelta does not add correctly to datetime in Pandas 2

  #53643 commented on Mar 31, 2025 • 0 new comments

• BUG: `groupby` then `resample` on column gives incorrect results if the index is out of order

  #59408 commented on Mar 31, 2025 • 0 new comments

• TST (string dtype): resolve xfails for frame methods

  #60336 commented on Apr 3, 2025 • 0 new comments

• My feature branch to issue #19129 (read_json and orient='table' With Numeric Column)

  #60945 commented on Mar 31, 2025 • 0 new comments

• perf: improve membership check performance in column filtering

  #61046 commented on Apr 4, 2025 • 0 new comments

• BUG: Fix return type of loc/iloc

  #61054 commented on Apr 2, 2025 • 0 new comments

• Preserve Complex Data Types for to_csv

  #61157 commented on Mar 31, 2025 • 0 new comments

• ENH: Support boolean masks for `iloc.__getitem__`

  #61162 commented on Apr 5, 2025 • 0 new comments

• update offsets.pyx to fix #60647

  #61181 commented on Mar 31, 2025 • 0 new comments

• DOC: User Guide Page on user-defined functions

  #61195 commented on Apr 1, 2025 • 0 new comments

• BUG: `iloc` with `Series` as indexer fails for `__getitem__` but works with `__setitem__`

  #60994 commented on Mar 31, 2025 • 0 new comments

• BUG: Can only compare identically-labeled Series objects (string vs. object)

  #61099 commented on Apr 1, 2025 • 0 new comments

• Improve the apply/map APIs

  #61128 commented on Apr 1, 2025 • 0 new comments

• BUG: engine calamine lost 0 when read_excel from vlookup cell

  #61186 commented on Apr 2, 2025 • 0 new comments

• ENH: use the option framework to opt-out of auto-alignment

  #61075 commented on Apr 2, 2025 • 0 new comments

• BUG: Boolean selection edge case.

  #61191 commented on Apr 2, 2025 • 0 new comments

• ENH: Enable nsmallest/nlargest on object dtype

  #61166 commented on Apr 3, 2025 • 0 new comments

• ENH: Export (a subset of?) pandas._typing for type checking

  #55231 commented on Apr 3, 2025 • 0 new comments

• BUG: `DataFrame.to_parquet` doesn't round-trip pyarrow StringDtype

  #42664 commented on Apr 4, 2025 • 0 new comments

• BUG: Empty object column writes to parquet as INT32 instead of BINARY L:STRING

  #37083 commented on Apr 4, 2025 • 0 new comments

• ENH: Add an iterdicts() function

  #60901 commented on Apr 4, 2025 • 0 new comments

• Pandas Series Construction Extremely Slow for Array of Large Series

  #25364 commented on Apr 4, 2025 • 0 new comments

• BUG: Parquet roundtrip fails with numerical categorical dtype

  #60491 commented on Apr 5, 2025 • 0 new comments

• BUG: Automatic change of color when the plot type is "line" but not when it is "scatter"

  #59846 commented on Apr 5, 2025 • 0 new comments

• BUG: Timezone upon DatetimeIndex union is changed to UTC

  #60080 commented on Apr 5, 2025 • 0 new comments

• TRACKER: Getting Started with Meson/Bug Reports

  #49683 commented on Apr 6, 2025 • 0 new comments