pandas-dev/pandas

Issues

• PERF: why nlargest is so slower?

  #61076 opened 20 days ago by ZGarry
  5

• BUG: pd.read_csv() on empty files should give an empty dataframe pd.DataFrame()

  #61172 opened 3 days ago by xuancong84
  4

• ENH: Automate reading of data in chunks

  #61110 opened 15 days ago by acampove
  1

• DOC: Write user guide page on apply/map/transform methods

  #61126 opened 12 days ago by datapythonista
  2

• BUG: Impossible creation of array with dtype=string

  #61155 opened 7 days ago by Maxence1402
  3

• ENH: add destructor to HDFStore

  #61169 opened 2 days ago by overjoy
  2

• BUG: import pandas 2.2.3 on WSL 2.4.12.0 raises broken support for `numpy.longdouble` dtype warning

  #61153 opened 7 days ago by pierre-eliep-met
  2

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

  #61170 opened 3 days ago by Aliebc
  2

• BUG: Collision between equivalent frequencies 'QS-FEB' and 'QS-NOV'

  #61086 opened 18 days ago by rwijtvliet
  7

• ENH: Support dict to `pd.set_option` for cleaner code

  #61093 opened 17 days ago by yasirroni
  14

• BUG: fails to plot 2 plots with secondary y axis when index type is PeriodIndex and plot kinds are different

  #61161 opened 5 days ago by Ev2geny
  3

• ENH: Enable nsmallest/nlargest on object dtype

  #61166 opened 5 days ago by Gri72
  4

• ENH: Accept no fields for groupby by

  #61160 opened 5 days ago by simonaubertbd
  6

• BUG: Inconsistent index type when using read_csv with string[pyarrow] dtype

  #61145 opened 8 days ago by ptth222
  4

• DOC: Add link to the "try pandas online" in the regular documentation

  #61060 opened 22 days ago by Dr-Irv
  3

• BUG: Faulty DatetimeIndex union

  #61159 opened 5 days ago by SamRWest
  3

• ENH: merge_asof threshold minimum

  #61164 opened 5 days ago by Lituchy
  6

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

  #61113 opened 14 days ago by it176131
  5

• BUG: `datetime64[s]` fails round trip using `.to_parquet` and `read_parquet`

  #61165 opened 5 days ago by noahblakesmith
  1

• BUG: ``Series.interpolate`` regression in latest Pandas 3.0.0 nightly (method 'linear' behaves like 'index')

  #61122 opened 12 days ago by theOehrly
  7

• BUG: str.fullmatch behavior is not the same for object dtype and string[pyarrow] dtype

  #61072 opened 20 days ago by ptth222
  2

• BUILD: Cython.Compiler.Errors: 'free_threading_config.pxi' not found

  #61156 opened 6 days ago by yohplala
  0

• ENH: Supporting third-party engines for all `map` and `apply` methods

  #61125 opened 12 days ago by datapythonista
  13

• BUG: .corr() values significantly higher than 1

  #61120 opened 13 days ago by krassowski
  3

• DOC: `read_excel` `nrows` parameter reads extra rows when tables are adjacent (no blank row)

  #61123 opened 7 days ago by robertutterback
  1

• ENH: fillna enhancement with method='nearest'

  #61124 opened 12 days ago by mennowitteveen
  1

• BUG: astype transforms NA to "NA"

  #61141 opened 8 days ago by latot
  6

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

  #61144 opened 9 days ago by MarcoGorelli
  3

• DOC: Clarification on Python 3.13 support

  #61139 opened 8 days ago by hoodmane
  2

• ENH: `DatetimeIndex.set_freq()`

  #61094 opened 17 days ago by rwijtvliet
  1

• BUG: `DataFrame.from_records()` ignores `columns` with iterator and `nrows=0`

  #61140 opened 9 days ago by jlumpe
  1

• ENH: Adding some common functionalities

  #61133 opened 9 days ago by maddytae
  2

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

  #61099 opened 16 days ago by wahsmail
  2

• Issue Title Here

  #61136 opened 10 days ago by saurav-chakravorty
  0

• Issue Title Here

  #61135 opened 10 days ago by saurav-chakravorty
  0

• Improve the apply/map APIs

  #61128 opened 12 days ago by datapythonista
  0

• BUG: Sorting fails in specific cases with pandas==2.1.1

  #61068 opened 21 days ago by nancy-pm
  4

• DEPR: Make `dtype="category"` always imply ordered=False

  #61074 opened 20 days ago by mroeschke
  2

• BUG: pd.api.types.infer_dtype on scalar input

  #61081 opened 14 days ago by gnotisauton
  9

• BUG: DataFrame.explode doesn't explode when using pyarrow large list type

  #61091 opened 15 days ago by MarcoGorelli
  1

• BUILD: installation using wheels fails when using nix + uv2nix

  #61079 opened 19 days ago by cpcloud
  2

• BUG: sometimes when using ~ and & operators for indexing it evaluated incorrectly

  #61052 opened 19 days ago by adamszelestey-se
  6

• BUG: Potentially incorrect result of `df.rolling(window=...).mean()`

  #61071 opened 20 days ago by lazyniv
  2

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

  #61075 opened 20 days ago by jxrossel
  0

• DOC: Outdated example of DataFrame.mean

  #61070 opened 20 days ago by rafael-patronilo
  1

• BUG: Inconsistent behaviour of apply with result_type='expand' for functions that can return NaN type values

  #61057 opened 22 days ago by finnhacks42
  2

• DOC: Pivot() example call incorrectly used and would give "error: duplicate index"

  #61058 opened 22 days ago by mheskett
  3

• BUG: invalid result of reindex on columns after unstack with Period data #60980

  #61055 opened 22 days ago by Pranav970
  3

• BUG: Ghost Column Generation Bug in .loc[] with Series Column Selector (Pandas 2.2.2)

  #61049 opened 22 days ago by Jeevacse07
  2

• Correction: Standardize spelling of "normalize" in codebase

  #61047 opened 22 days ago by arthurlw
  0