If you try and change the column names of a DataFrame with non-unique column names, it seems to throw and error (11.0 and dev).

Description When building a DataFrame with specified column names and dtypes, one might expect one of two possible behaviours: The column names and dtypes specs are perfectly cromulent, and Pandas ...

Often to check the content of a tab delemited file we want to know how many unique things there are in a particular column. Below I give you instructions for checking this using command line and the ...