pandas-dev/pandas issues and pull requests

#62344 - BUG: cast_pointwise_result with BooleanDtype and all-NA values

Issue - State: closed - Opened by jbrockmendel 2 months ago - 1 comment
Labels: Bug, Dtype Conversions, NA - MaskedArrays

#61778 - BUG?: creating Categorical from pandas Index/Series with "object" dtype infers string

Issue - State: open - Opened by jorisvandenbossche 5 months ago - 4 comments
Labels: Dtype Conversions, Categorical

#61766 - BUG: ensure to_numeric down-casts to uint64 for large unsigned integers

Pull Request - State: open - Opened by mohiuddin-khan-shiam 5 months ago
Labels: Dtype Conversions

#61742 - BUG: fillna with DataFrame input should preserve dtype when possible

Pull Request - State: open - Opened by iabhi4 5 months ago - 1 comment
Labels: Bug, Dtype Conversions

#61679 - BUG: Fix lost precision with common type of uint64/int64

Pull Request - State: open - Opened by pbrochart 5 months ago - 5 comments
Labels: Bug, Dtype Conversions, isin

#61679 - BUG: Fix lost precision with common type of uint64/int64

Pull Request - State: closed - Opened by pbrochart 5 months ago - 8 comments
Labels: Bug, Dtype Conversions, Stale, isin

#61676 - BUG: Implicit conversion to float64 with isin()

Issue - State: open - Opened by pbrochart 5 months ago - 1 comment
Labels: Bug, Dtype Conversions, Needs Triage, isin

#61659 - BUG: to_numeric fails to convert a Pyarrow Decimal series containing NA values

Pull Request - State: closed - Opened by chilin0525 6 months ago - 2 comments
Labels: Bug, Dtype Conversions, Stale, Arrow

#61659 - BUG: to_numeric fails to convert a Pyarrow Decimal series containing NA values

Pull Request - State: open - Opened by chilin0525 6 months ago
Labels: Bug, Dtype Conversions, Arrow

#61624 - BUG: Fix infer_dtype result for float with embedded pd.NA

Pull Request - State: closed - Opened by heoh 6 months ago - 1 comment
Labels: Bug, Missing-data, Dtype Conversions

#61624 - BUG: Fix infer_dtype result for float with embedded pd.NA

Pull Request - State: closed - Opened by heoh 6 months ago - 2 comments
Labels: Bug, Missing-data, Dtype Conversions

#61621 - BUG: infer_dtype result for float with embedded pd.NA

Issue - State: closed - Opened by MarkusZimmerDLR 6 months ago - 5 comments
Labels: Bug, Missing-data, Dtype Conversions

#61615 - BUG: Fix RecursionError when apply native container types as a func

Pull Request - State: closed - Opened by heoh 6 months ago
Labels: Dtype Conversions

#61615 - BUG: Fix RecursionError when apply native container types as a func

Pull Request - State: closed - Opened by heoh 6 months ago - 1 comment
Labels: Dtype Conversions

#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

#61496 - BUG: Passing string[pyarrow] to the dtype parameter of e.g. csv_read() does produce a string type Series

Issue - State: open - Opened by ClauPet 6 months ago - 3 comments
Labels: Dtype Conversions, IO CSV, Strings, Needs Discussion, Arrow

#61394 - DOC: add `api.types.is_dtype_equal` into document

Pull Request - State: closed - Opened by chilin0525 7 months ago - 1 comment
Labels: Docs, Dtype Conversions

#61394 - DOC: add `api.types.is_dtype_equal` into document

Pull Request - State: closed - Opened by chilin0525 7 months ago - 1 comment
Labels: Docs, Dtype Conversions

#61346 - BUG: assignment via loc silently fails with differing dtypes

Issue - State: closed - Opened by zbs 7 months ago - 10 comments
Labels: Bug, Dtype Conversions, Closing Candidate

#61234 - BUG: Fix DatetimeIndex timezone preservation when joining indexes with same timezone but different units

Pull Request - State: closed - Opened by myenugula 8 months ago - 5 comments
Labels: Bug, Dtype Conversions, Timezones

#61177 - BUG: Inconsistency when converting week PeriodIndex into DatetimeIndex with astype("datetime64[ns]")

Issue - State: open - Opened by dbalabka 8 months ago - 4 comments
Labels: Bug, Datetime, Dtype Conversions, Period, Needs Discussion

#61144 - BUG(?): rolling sum with pyarrow types results in float64 instead of preserving integer type

Issue - State: open - Opened by MarcoGorelli 8 months ago - 4 comments
Labels: Bug, Dtype Conversions, Window, Arrow

#61131 - BUG: Fix inconsistency of converting empty categorical with dtype_backend='pyarrow'

Pull Request - State: closed - Opened by yuanx749 9 months ago - 1 comment
Labels: Dtype Conversions, Categorical

#61131 - BUG: Fix inconsistency of converting empty categorical with dtype_backend='pyarrow'

Pull Request - State: closed - Opened by yuanx749 9 months ago
Labels: Dtype Conversions, Categorical

#60952 - Bug: Fix convert_dtypes not preserving timezone details for ArrowDtype

Pull Request - State: closed - Opened by Anurag-Varma 9 months ago - 2 comments
Labels: Dtype Conversions

#60905 - DOC: Should `pandas.api.types.is_dtype_equal()` be documented?

Issue - State: closed - Opened by Dr-Irv 10 months ago - 6 comments
Labels: Docs, Dtype Conversions

#60882 - BUG: Don't ignore errors when casting dtype in Series constructor

Pull Request - State: closed - Opened by snitish 10 months ago - 3 comments
Labels: Dtype Conversions

#60882 - BUG: Don't ignore errors when casting dtype in Series constructor

Pull Request - State: closed - Opened by snitish 10 months ago
Labels: Dtype Conversions

#60850 - BUG: Avoid casting to float for datetimelike in min/max reductions

Pull Request - State: closed - Opened by snitish 10 months ago - 1 comment
Labels: Dtype Conversions

#60510 - BUG: Fix float32 precision issues in pd.to_datetime

Pull Request - State: closed - Opened by snitish 12 months ago - 1 comment
Labels: Dtype Conversions

#60510 - BUG: Fix float32 precision issues in pd.to_datetime

Pull Request - State: closed - Opened by snitish 12 months ago
Labels: Dtype Conversions

#60166 - BUG: fix #60128 BUG: Series.combine_first loss of precision

Pull Request - State: closed - Opened by cooolheater about 1 year ago - 1 comment
Labels: Bug, Dtype Conversions

#60166 - BUG: fix #60128 BUG: Series.combine_first loss of precision

Pull Request - State: closed - Opened by cooolheater about 1 year ago - 1 comment
Labels: Bug, Dtype Conversions

#60159 - BUG/API: preserve dtype in Index `append()`

Issue - State: open - Opened by jorisvandenbossche about 1 year ago
Labels: Dtype Conversions, Strings, Index

#60129 - BUG: allow complex type in convert_dtypes

Issue - State: open - Opened by yasirroni about 1 year ago - 2 comments
Labels: Bug, Dtype Conversions, Complex

#60128 - BUG: Series.combine_first loss of precision

Issue - State: open - Opened by jessestone7 about 1 year ago - 10 comments
Labels: Bug, Dtype Conversions, combine/combine_first/update

#60118 - BUG: preserve (object) dtype in factorize

Pull Request - State: closed - Opened by jorisvandenbossche about 1 year ago
Labels: Dtype Conversions, Algos

#60118 - BUG: preserve (object) dtype in factorize

Pull Request - State: closed - Opened by jorisvandenbossche about 1 year ago - 3 comments
Labels: Dtype Conversions, Algos

#60101 - BUG: unable to insert 64-bit integers into dataframe.

Issue - State: closed - Opened by dominiquegarmier about 1 year ago - 1 comment
Labels: Bug, Dtype Conversions, Closing Candidate

#59974 - BUG: fix to_numeric raises TypeError for Timedelta and Timestamp scalar

Pull Request - State: closed - Opened by yuanx749 about 1 year ago
Labels: Bug, Dtype Conversions, Timedelta, Timestamp

#59974 - BUG: fix to_numeric raises TypeError for Timedelta and Timestamp scalar

Pull Request - State: closed - Opened by yuanx749 about 1 year ago - 1 comment
Labels: Bug, Dtype Conversions, Timedelta, Timestamp

#59944 - BUG: pd.to_numeric(timedelta_scalar) raises TypeError

Issue - State: closed - Opened by sfc-gh-mvashishtha about 1 year ago - 2 comments
Labels: Bug, Dtype Conversions, Timedelta, Timestamp

#59831 - ENH: Restore the functionality of `.fillna`

Issue - State: closed - Opened by tomprimozic about 1 year ago - 5 comments
Labels: Enhancement, Missing-data, Dtype Conversions, Needs Discussion, Needs Info, Closing Candidate

#59502 - DEPR: future.no_silent_downcasting option

Issue - State: open - Opened by jbrockmendel over 1 year ago - 1 comment
Labels: Dtype Conversions, Deprecate

#59316 - BUG: Avoid RangeIndex conversion in read_csv if dtype is specified

Pull Request - State: closed - Opened by mroeschke over 1 year ago - 1 comment
Labels: Dtype Conversions, IO CSV

#59316 - BUG: Avoid RangeIndex conversion in read_csv if dtype is specified

Pull Request - State: open - Opened by mroeschke over 1 year ago
Labels: Dtype Conversions, IO CSV

#59284 - BUG: Fix precision loss in read_json

Pull Request - State: closed - Opened by fawazahmed0 over 1 year ago - 6 comments
Labels: Bug, Dtype Conversions, IO JSON

#59284 - BUG: Fix precision loss in read_json

Pull Request - State: closed - Opened by fawazahmed0 over 1 year ago - 7 comments
Labels: Bug, Dtype Conversions, IO JSON

#59161 - DEPR: Dtype casting in `read_json`

Issue - State: open - Opened by mroeschke over 1 year ago
Labels: Dtype Conversions, IO JSON, Deprecate

#58938 - BUG: default value for dtype_backend is not applied by default

Issue - State: closed - Opened by pumpkinlink over 1 year ago - 5 comments
Labels: Docs, Missing-data, Dtype Conversions

#58869 - BUG: Unexpected cast to float for `DataFrame.groupby().agg(engine="numba")`

Issue - State: open - Opened by willsthompson over 1 year ago - 1 comment
Labels: Bug, Groupby, Dtype Conversions, Needs Triage, numba

#58811 - BUG: Groupby transformation (cumsum) output dtype depends on whether NA is among group labels

Issue - State: closed - Opened by avm19 over 1 year ago - 8 comments
Labels: Bug, Groupby, Dtype Conversions, Transformations

#58758 - CLN: Stopped object inference in constructors for pandas objects

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

#58758 - CLN: Stopped object inference in constructors for pandas objects

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

#58669 - BUG: Empty DataFrame constructor dtype

Pull Request - State: closed - Opened by rhshadrach over 1 year ago - 3 comments
Labels: Bug, Dtype Conversions, Stale

#58669 - BUG: Empty DataFrame constructor dtype

Pull Request - State: closed - Opened by rhshadrach over 1 year ago - 3 comments
Labels: Bug, Dtype Conversions, Stale

#58655 - CLN: Stopped dtype inference in sanitize_array with Index[object]

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

#58655 - CLN: Stopped dtype inference in sanitize_array with Index[object]

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

#58485 - BUG: DataFrame.convert_dtype(convert_integer=True) with int64_t limits throws Warning

Issue - State: open - Opened by Tishj over 1 year ago - 3 comments
Labels: Bug, Dtype Conversions, Warnings

#58479 - BUG: astype not casting values for dictionary dtype correctly

Pull Request - State: closed - Opened by phofl over 1 year ago
Labels: Dtype Conversions, Arrow

#58479 - BUG: astype not casting values for dictionary dtype correctly

Pull Request - State: closed - Opened by phofl over 1 year ago - 1 comment
Labels: Dtype Conversions, Arrow

#58258 - BUG 58031 -- groupby aggregate dtype consistency

Pull Request - State: closed - Opened by longovin over 1 year ago - 2 comments
Labels: Groupby, Dtype Conversions, Apply, Stale

#58156 - BUG: Fix read_parquet not working with data type pyarrow list (#57411)

Pull Request - State: closed - Opened by diogojarodrigues over 1 year ago - 3 comments
Labels: Dtype Conversions, Arrow

#58139 - BUG: fixed to_numeric loss in precision when converting decimal type to integer #57213

Pull Request - State: closed - Opened by Leventide over 1 year ago - 1 comment
Labels: Dtype Conversions

#58139 - BUG: fixed to_numeric loss in precision when converting decimal type to integer #57213

Pull Request - State: closed - Opened by Leventide over 1 year ago - 1 comment
Labels: Dtype Conversions

#57937 - BUG: Fix bad datetime64[ns] array to str dtype conversion in Series ctor which causes odd read_csv behaviour

Pull Request - State: closed - Opened by ruimamaral over 1 year ago - 1 comment
Labels: Dtype Conversions

#57937 - BUG: Fix bad datetime64[ns] array to str dtype conversion in Series ctor which causes odd read_csv behaviour

Pull Request - State: closed - Opened by ruimamaral over 1 year ago - 1 comment
Labels: Dtype Conversions

#57637 - BUG: Fix dataframe.update not updating dtype #55509 v2

Pull Request - State: closed - Opened by aureliobarbosa over 1 year ago - 13 comments
Labels: Bug, Dtype Conversions

#57637 - BUG: Fix dataframe.update not updating dtype #55509 v2

Pull Request - State: closed - Opened by aureliobarbosa over 1 year ago - 12 comments
Labels: Bug, Dtype Conversions

#57565 - DOC: Series.diff with boolean dtype does not return a series of dtype float

Issue - State: open - Opened by from-nowhere almost 2 years ago - 4 comments
Labels: Docs, Dtype Conversions, Needs Discussion, Transformations, Nullable by default

#57533 - Backport PR #57489 on branch 2.2.x (REGR: astype introducing decimals when casting from int with na to string)

Pull Request - State: closed - Opened by meeseeksmachine almost 2 years ago
Labels: Dtype Conversions

#57533 - Backport PR #57489 on branch 2.2.x (REGR: astype introducing decimals when casting from int with na to string)

Pull Request - State: open - Opened by meeseeksmachine almost 2 years ago
Labels: Dtype Conversions

#57489 - REGR: astype introducing decimals when casting from int with na to string

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

#57489 - REGR: astype introducing decimals when casting from int with na to string

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

#57485 - REGR: DataFrame.update emits spurious warning about downcasting

Pull Request - State: closed - Opened by rhshadrach almost 2 years ago - 1 comment
Labels: Bug, Dtype Conversions, Regression, DataFrame, Warnings, Conditionals

#57485 - REGR: DataFrame.update emits spurious warning about downcasting

Pull Request - State: closed - Opened by rhshadrach almost 2 years ago
Labels: Bug, Dtype Conversions, Regression, DataFrame, Warnings, Conditionals

#57418 - BUG: conversion from Int64 to string introduces decimals in Pandas 2.2.0

Issue - State: closed - Opened by mplatzer almost 2 years ago - 7 comments
Labels: Bug, Dtype Conversions, Regression, Arrow

#57399 - Fix for issue #57268 - ENH: Preserve input start/end type in interval…

Pull Request - State: closed - Opened by VISWESWARAN1998 almost 2 years ago - 5 comments
Labels: Dtype Conversions, Interval

#57331 - Backport PR #57322 on branch 2.2.x (REGR: Fix astype conversion of ea int to td/dt with missing values)

Pull Request - State: closed - Opened by meeseeksmachine almost 2 years ago
Labels: Dtype Conversions, NA - MaskedArrays

#57331 - Backport PR #57322 on branch 2.2.x (REGR: Fix astype conversion of ea int to td/dt with missing values)

Pull Request - State: closed - Opened by meeseeksmachine almost 2 years ago
Labels: Dtype Conversions, NA - MaskedArrays

#57322 - REGR: Fix astype conversion of ea int to td/dt with missing values

Pull Request - State: closed - Opened by phofl almost 2 years ago - 1 comment
Labels: Dtype Conversions, NA - MaskedArrays

#57322 - REGR: Fix astype conversion of ea int to td/dt with missing values

Pull Request - State: closed - Opened by phofl almost 2 years ago - 2 comments
Labels: Dtype Conversions, NA - MaskedArrays

#57272 - PERF: reindex default fill_value dtype

Pull Request - State: closed - Opened by mroeschke almost 2 years ago - 1 comment
Labels: Missing-data, Dtype Conversions

#57272 - PERF: reindex default fill_value dtype

Pull Request - State: closed - Opened by mroeschke almost 2 years ago
Labels: Missing-data, Dtype Conversions

#57268 - ENH: Preserve input `start`/`end` type in `interval_range`

Issue - State: closed - Opened by mroeschke almost 2 years ago - 1 comment
Labels: Enhancement, Dtype Conversions, Interval

#57213 - BUG: to_numeric loses precision when converting decimal type to integer

Issue - State: open - Opened by sfc-gh-aalam almost 2 years ago - 3 comments
Labels: Bug, Dtype Conversions

#57183 - BUG: df.reset_index(names=[None]) names index column NaN instead of None

Issue - State: closed - Opened by mvashishtha almost 2 years ago - 1 comment
Labels: Dtype Conversions, Closing Candidate

#57170 - REGR: Series.astype raising TypeError when converting a pyarrow integer type with nulls to numpy float

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

#57170 - REGR: Series.astype raising TypeError when converting a pyarrow integer type with nulls to numpy float

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

#57150 - BUG: Localizing Timestamp.min changes dtype to object

Issue - State: closed - Opened by robert-schmidtke almost 2 years ago - 6 comments
Labels: Bug, Dtype Conversions, Regression, Timestamp

#57080 - BUG: Inconsistent resolution from constructing with and assigning datetime values

Issue - State: closed - Opened by zhu0210 almost 2 years ago - 4 comments
Labels: Bug, Dtype Conversions, Regression, Non-Nano

#57030 - BUG: Inconsistent behavior while constructing a Series with large integers in a int64 masked array

Pull Request - State: closed - Opened by parthi-siva almost 2 years ago - 2 comments
Labels: Bug, Dtype Conversions, Constructors, NA - MaskedArrays, Stale

#56984 - BUG: Unsafe decimal parse for arrow types silently truncates value instead of raising an error

Issue - State: closed - Opened by rohanjain101 almost 2 years ago - 3 comments
Labels: Bug, Dtype Conversions, Regression, Needs Triage, Arrow

#56679 - BUG: Empty list passed to `Series` returns `object` dtype, but via `DataFrame` returns `float64`

Issue - State: open - Opened by galipremsagar almost 2 years ago - 9 comments
Labels: Bug, Dtype Conversions, DataFrame, Constructors

#56678 - BUG: precision losing in frame creation when data contains large integers and missing values

Issue - State: closed - Opened by paralyzah almost 2 years ago - 7 comments
Labels: Dtype Conversions, Usage Question, Closing Candidate

#56676 - BUG: Floordiv with integral pyarrow types should avoid storing results in floating type for intermediate calculation

Issue - State: closed - Opened by rohanjain101 almost 2 years ago
Labels: Bug, Dtype Conversions, Needs Triage, Arrow

GitHub / pandas-dev/pandas issues and pull requests