Pandas ENH/PERF: add validate parameter to 'Categorical.from_codes' get avoid validation when not needed

  • 2025-02-10 00:06:54
  • 3229
Pandas version checks[X] I have checked that this issue has not already been reported.[X] I have confirmed this issue ex...

Pandas Groupy chunks are garbage-collected even if still referenced

  • 2025-02-10 00:06:48
  • 5679
Code Sample, a copy-pastable example if possibleIn [2]: df = pd.DataFrame(1, index=list(range(10))*10, columns=[0]).rese...

Pandas DOC: pd.DataFrame.align() join parameter values are insufficiently explained

  • 2025-02-10 00:06:44
  • 497
Pandas version checks[X] I have checked that the issue still exists on the latest versions of the docs on main hereLocat...

Pandas PERF: Selecting columns from MultiIndex no longer consolidates (pandas 2.0 regression?)

  • 2025-02-10 00:06:39
  • 14069
Comparing vanilla installs of Pandas 1.5.3 vs 2.0.1 (and also vs 2.0.0) when selecting columns from a DataFrame with col...

Pandas BUG: UDFs with apply returning nanoseconds when compared to native binops that return seconds

  • 2025-02-10 00:06:35
  • 5257
Pandas version checks[X] I have checked that this issue has not already been reported.[X] I have confirmed this bug exis...

Pandas API: dtype_backend and constructors long-term

  • 2025-02-10 00:06:31
  • 1661
On today's dev call we discussed the dtype_backend global option (decided to revert for 2.0) and the use_nullable_dtypes...

Pandas BUG: df.clip does not handle inverted lower/upper bounds consistently

  • 2025-02-10 00:06:27
  • 4174
Pandas version checks[X] I have checked that this issue has not already been reported.[X] I have confirmed this bug exis...

Pandas BUG: integer overflow in csv_reader

  • 2025-02-10 00:06:23
  • 8978
Pandas version checks[X] I have checked that this issue has not already been reported.[X] I have confirmed this bug exis...

Pandas BUG: slicing DatetimeIndex with unused and unordered levels gives incorrect results

  • 2025-02-10 00:06:18
  • 983
Pandas version checks[X] I have checked that this issue has not already been reported.[X] I have confirmed this bug exis...

Pandas BUG: TemplateNotFound: latex_table.tpl

  • 2025-02-10 00:06:12
  • 1337
Pandas version checks[X] I have checked that this issue has not already been reported.[X] I have confirmed this bug exis...

Pandas BUG: to_timedelta(pd.NA) raising ValueError

  • 2025-02-10 00:06:05
  • 616
Pandas version checks[X] I have checked that this issue has not already been reported.[X] I have confirmed this bug exis...

Pandas BUG: json_normalize cannot parse metadata fields list type

  • 2025-02-10 00:06:00
  • 3777
Code Sample, a copy-pastable exampletest_data = [ {"values": [1, 2, 3], "metadata": {"listda...

Pandas DOC: Incorrect deprecation in Styler.applymap

  • 2025-02-10 00:05:55
  • 552
Pandas version checks[X] I have checked that the issue still exists on the latest versions of the docs on main hereLocat...

Pandas BUG: first(’2s’) with index with null in middle gives 1st row instead of first 2

  • 2025-02-10 00:05:50
  • 4335
Pandas version checks[X] I have checked that this issue has not already been reported.[X] I have confirmed this bug exis...

Pandas BUG: running apply on a cell with NoneType returns error.

  • 2025-02-10 00:05:44
  • 3202
Pandas version checks[X] I have checked that this issue has not already been reported.[X] I have confirmed this bug exis...

Pandas BUG: rolling do not pass window contains nan to agg function

  • 2025-02-10 00:05:41
  • 2434
Pandas version checks[X] I have checked that this issue has not already been reported.[X] I have confirmed this bug exis...

Pandas BUG: Instantiating pandas._libs.parsers.TextReader segfaults

  • 2025-02-10 00:05:36
  • 4862
Pandas version checks[X] I have checked that this issue has not already been reported.[X] I have confirmed this bug exis...

Pandas BUG: SQLAlchemy 1.4.46 emits warning with pandas 1.5.2, SQLAlchemy 1.4.45 has no warning

  • 2025-02-10 00:05:32
  • 13809
Pandas version checks[X] I have checked that this issue has not already been reported.[X] I have confirmed this bug exis...

Pandas BUG: assert_index_equal does not consider level order

  • 2025-02-10 00:05:26
  • 1879
Ref: https://github.com/pandas-dev/pandas/pull/53049#issuecomment-1534094939The following does not raise:index1 = pd.Mul...

Pandas BUG: eval() method does not support some symbols in column name

  • 2025-02-10 00:05:22
  • 3631
Pandas version checks[X] I have checked that this issue has not already been reported.[X] I have confirmed this bug exis...
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