Pandas BUG: ISO8601 fastpath fails to parse 2022-01-01 00:00:00Z

Pandas version checks[X] I have checked that this issue has not already been reported.[X] I have confirmed this bug exis...

Pandas PERF: Series.value_counts() in aggregation function is slower than collections.Counter()

Pandas version checks[X] I have checked that this issue has not already been reported.[X] I have confirmed this issue ex...

Pandas API: Series(mixed_datetime_and_ints, dtype="M8[ns]") vs DatetimeIndex(same) mismatch

values = [pd.Timestamp.now(), 1]pd.Series(values, dtype="M8[ns]") # <- castspd.DatetimeIndex(values, dtype...

Pandas ENH: CI check for new extras_require

Feature Type[ ] Adding new (test) functionality to pandasProblem DescriptionCI tests should validate that the setup.cfg ...

Pandas BUG: DataFrame.explode incomplete support on multiple columns with NaN or empty lists

Pandas version checks[X] I have checked that this issue has not already been reported.[X] I have confirmed this bug exis...

Pandas BUG: assignment with .at or .loc modifies dataframe when it fails

Code Sample, a copy-pastable example if possibled = pd.DataFrame()try: d.set_value(0, "c", [1,2,4]) except E...

Pandas DOC: cross missing in how set of params

Pandas version checks[X] I have checked that the issue still exists on the latest versions of the docs on main hereLocat...

Pandas REF: avoid passing self as arg from ExtensionArray methods

The following functions are called from ExtensionArray methods with self as the first argument:[ ] nargminmax[ ] format_...

Pandas ENH: clearer error messages for xlrd and openpyxl issues

Is your feature request related to a problem?While using the scipy-notebook image from Jupyter, which installs pandas an...

Pandas bug (cannot check current version): dataframe slice [:N] contains N+1 element

Apologies, I cannot use the BUG template as pip install -U pandas does not go beyond version 1.1.5 on my system, presuma...

Pandas BUG: DatetimeIndex.copy() not making deep copy

Pandas version checks[X] I have checked that this issue has not already been reported.[X] I have confirmed this bug exis...

Pandas BUG: read_csv raises ParserError in inconsistent ways when column names exceed number of parsed columns

Pandas version checks[X] I have checked that this issue has not already been reported.[X] I have confirmed this bug exis...

Pandas BUG: read_excel

Pandas version checks[X] I have checked that this issue has not already been reported.[X] I have confirmed this bug exis...

Pandas DOC: No such file or directory: '/versions.json'

[x] I have checked that the issue exists on the latest versions of the docs on main.[x] I have checked that there is no ...

Pandas BUG: DataFrame.fillna does not always work with inplace

Pandas version checks[X] I have checked that this issue has not already been reported.[X] I have confirmed this bug exis...

Pandas BUG: drop_duplicates raises FutureWarning after resetting index

Pandas version checks[X] I have checked that this issue has not already been reported.[X] I have confirmed this bug exis...

Pandas QST: Cannot import Pandas into Jupyter Lab, 'AttributeError: module 'numpy' has no attribute 'ndarray'

Research[X] I have searched the [pandas] tag on StackOverflow for similar questions.[X] I have asked my usage related qu...

Pandas DataFrame.update crashes with overwrite=False when NaT present

Code Sampledf1 = DataFrame({'A': [1,None], 'B':[to_datetime('abc', errors='coerce'),to_datetime('2016-01-01')]})df2 = Da...

Pandas API: Consolidate groupby as_index and group_keys

Everything in this issue also applies to Series.groupby and SeriesGroupBy; I will just be writing it for DataFrame.Curre...

Pandas BUG: df.rename() does not work when used in a loop

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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