python - Import difficulties with read_csv -


i have csv-file following format:

0;2017-02-16 15:08:16;81,307877;;;;;;;

so, semi-colon separator, date , time , float decimal comma. , bunch of semi-colons in end.

pandas csv_read should solution this. however, after plenty of attempts feel rather stuck. not understand how handle ;;;'s in end of file , rather uncertain whether understand how csv_read works when comes more detailed control possibilities.

for using csv_read regularily, has simple question... hope. have spent quite time on already...

one example:

pd.read_csv(r'c:\users\henrik\pycharmprojects\regforce\kort_del_1.csv',  encoding="latin", sep=';', decimal=',', usecols=[0, 1, 2, 3])

in return get:

   ÿþ0  unnamed: 1  unnamed: 2  unnamed: 3 0      nan         nan         nan         nan 1      nan         nan         nan         nan

i have tried "force" types each of columns no result...???

update: found interesting post, http://pythonforengineers.com/website-visitors-part-2-dealing-with-corrupt-data/... downloaded hex-reader , found odd things in beginning of input file. seems reason behind "ÿþ0" in table above. cannot see if open in notebook sure in file.

can origin nan's in file? , how handle it? seems read_csv able identify existence of columns, cannot values...?

i use read_csv in way:

df = pd.read_csv('yourfile.csv', sep=';', header=none, decimal=',', usecols=[0,1,2])

so reading , since have semi-colons @ end you're not interested in, consider first 3 columns.

edit: pirsquared comment, add decimal=',' args.


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