pd.read_fwf ignoring a space when reading space delimited file #23455
Description
Code Sample
temperature_lst=
41485 177.40357149 -39.01654000 13.000 13.92 .0100 .2000 -1.02 .0100 .2000
41489 171.56518149 -42.94461000 743.000 7.29 .0100 .3333 .51 .0100 .3333
df = pd.read_fwf('./temperature_lst',names=['agn','longt','lat','v1','v2','v3', 'v4','v5','v6', 'v7'])
df.tail()
agn longt lat v1 v2 v3 v4 v5 v6 v7
41485 177.403571 -39.01654 13.0 13.92 0.01 0.2000 1.02 0.01 0.2000
41489 171.565181 -42.94461 743.0 7.29 0.01 0.3333 0.51 0.01 0.3333Problem description
temperature_lst is a space delimited file, when using read_fwf to read this in to a dataframe some space is truncated in column 'v5'. This results in '-1.02' becoming just '1.02'.
Is this is a bug?
However, this works when 'widths' is defined. In my case, there are multiple files that are read in this way, so using 'widths' can be tedious.
df = pd.read_fwf('./11068_temperature_anom.lst',names=['agn','longt','lat','v1','v2','v3', 'v4','v5',
...: 'v6', 'v7'], widths=[8,16,16,9,9,7,7,9,7,7])