BUG: Read_Table and Read_Csv does not raise when delim_whitespace=True and sep=default is given (original) (raw)

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Code Sample, a copy-pastable example

import io f = io.StringIO("a b c\n1 -2 -3\n4 5 6") df = pd.read_table(f, sep="\t", delim_whitespace=True) df = pd.read_csv(f, sep=",", delim_whitespace=True)

Problem description

Both statement should raise a ValueError

Expected Output

ValueError

Must also edit docs. See #36560 for discussion.

cc @simonjayhawkins

Output of pd.show_versions()

Details

master