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pandas-dev/pandas

Flexible and powerful data analysis / manipulation library for Python, providing labeled data structures similar to R data.frame objects, statistical functions, and much more

https://pandas.pydata.org

pandas-dev

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Express your opinions freely and help others including your future self

Issues rank

pandas.core.base.DataError: No numeric types to aggregate hot 89
Pivot / unstack on large data frame does not work int32 overflow hot 77
BUG: read_excel not accepting encoding on 1.1.0 hot 74
ModuleNotFoundError: No module named '_lzma' hot 69
Building pandas complains missng algos.c hot 60
Adding (Insert or update if key exists) option to `.to_sql` hot 59
False positive for "nested renamer is not supported" error - pandas hot 47
Cannot tell usecols to ignore missing columns hot 47
Error at groupby using apply ValueError: No axis named 1 for object type <class 'pandas.core.series.Series'> hot 46
Problem with lzma module hot 45
to_excel cannot handle large sheet hot 45
Add filters parameter to pandas.read_parquet() to enable PyArrow/Parquet partition filtering hot 44
BadZipFile error when using read_excel on .xlsx hot 44
TypeError: dtype '<class 'datetime.datetime'>' not understood hot 37
pandas.ExcelWriter has abstract methods hot 36

contributors (According to the first 100)

jreback
jbrockmendel
wesm
jorisvandenbossche
TomAugspurger
cpcloud
simonjayhawkins
gfyoung
mroeschke
sinhrks
adamklein
topper-123
jtratner
changhiskhan
WillAyd
phofl
ShaharNaveh
datapythonista
jschendel
hayd
dsaxton
attack68
rhshadrach
MarcoGorelli
fangchenli
orbitfold
mzeitlin11
alimcmaster1
toobaz
jseabold
charlesdong1991
chris-b1
h-vetinari
shoyer
lodagro
arw2019
ivanovmg
bashtage
SaturnFromTitan
mortada
Dr-Irv
lithomas1
qwhelan
takluyver
behzadnouri
twoertwein
kawochen
Komnomnomnom
reidy-p
bwignall
avinashpancham
jankatins
makbigc
dsm054
gliptak
rockg
evanpw
yarikoptic
immerrr
davidastephens
JustinZhengBC
stephenwlin
thoo
erfannariman
FHaase
danielballan
Licht-T
ganevgv
minggli
moink
realead
ryankarlos
debnathshoham
Moisan
lexual
partev
aflaxman
danbirken
AlexKirko
farhanreynaldo
kshedden
unutbu
afeld
xhochy
saurav-chakravorty
fujiaxiang
roberthdevries
onesandzeroes
parthea
snth
gwrome
ihsansecer
sglyon
github-actions[bot]
seth-p
discort
cancan101
toddrjen
vaibhavhrt
willpeppo