When I tried to generate multiindex with np.nan or None from array, I got:import pandas as pdimport numpy as npfrom pand...

Can it be possible to improve drop_duplicates() method to handle list column datatpyes? Now if I have a column with list...

import pandas as pddata = pd.read_excel(open("2016-07-12_Zuwendungsbericht_2015_OpenData.xlsx"), sheetname=&qu...

Code Sample, a copy-pastable example if possiblefrom StringIO import StringIOimport pandas as pdimport numpy as npdata =...

Inside of a Django view: my_names = ['Date','Open','High','Low','Close','Volume','B0','B1','B2','B3','B4','B5','B6','...

Code Sample, a copy-pastable example if possibleimport pandas as pdimport html5libimport requestsfrom lxml import htmlfr...

From the categorical example docs, with python 2.7:In [1]: s = pd.Series(["a","b","c",&quo...

When I run the following script on my macbookpro, I see that 8 threads are spawn. Similar behavior (opening multiple thr...

Code Samplepd.to_datetime('22/12/2016')Problem descriptionThis fails on Python 3.6.0, but works with previous versions l...

File: sample.txtimport pandas as pd# This does not work as expectedw = pd.read_csv("sample.txt", dtype={"...

First of all, if I missed a point, please feel free to comment.Using arithmetic operations on pd.DataFrames is sometimes...

Is there any downside to adding this? This would allow one to avoid having to save/close an Excel file deliberately. Com...

Series.describe() seems to return the wrong dtype for series with categorical data. See example below:import pandas as p...

Code Sample, a copy-pastable example if possible>>> import pandas as pd>>> a = pd.Series(range(10))&gt...

I'm looking into the code to see if this change would be a major or minor undertaking. I don't know what your opinion is...

Code Sample, a copy-pastable example if possible# Your code here>>> loc1series4 = pd.Series([6,8,10,12,14,9,11,...

pd.Timestamp() raises what seems to me an unnecessary error.import pandas as pd# this throws error:>>> pd.Times...

Code Sample, a copy-pastable example if possibleimport pandas as pdimport numpy as npdf = pd.DataFrame({'year':[1990.0, ...

Code Samplea = np.array([1,2,3, np.nan])b = pd.DataFrame(a)b.fillna(4, inplace=True)print bprint aOutput 00 1.01 2...

I'm getting a CParserError on a large (25M rows) tab-delimited file. I've narrowed the problem to the lines in the examp...