I'm converting a .ods spreadsheet to a Pandas DataFrame. I have whole columns and rows I'd like to drop because they contain only "None". As "None" is a string, I have:
pandas.DataFrame.replace("None", numpy.nan)
...on which I call: .dropna(how='all')
Is there a pandas equivalent to numpy.nan?
Is there a way to use .dropna() with the *string "None" rather than NaN?