some csv files are not detected correctly in file open and clipborad

[krajcsi]

pd.read_csv(data, sep=None, engine='python') does not detect for example, https://github.com/CrumpLab/7709Rbook/blob/master/data/WHR2018.csv

other engines do not work correctly either

tested with pandas 1.5.3 and 2.1.3

consider using https://github.com/alan-turing-institute/CleverCSV instead (although at the moment, clevercsv cannot handle io.StringIO() )

but seemingly, clevercsv cannot handle single column files: #152