unnecessary "['', '']" when parse CSV files using python csv module -


everyone.

i want parse csv "20568078","240431","jpg","st, carolina 1920",,into ["20568078","240431","jpg","st, carolina 1920","",""]

by using this:

string=r'"20568078","240431","jpg","st, carolina 1920",,' reader = csv.reader(string) r in reader:     print (r)

i got output:

['20568078'] ['', ''] ['240431'] ['', ''] ['jpg'] ['', ''] ['st, carolina 1920'] ['', ''] ['', '']

i want konw how delete unnecessary ['', ''], , change last 2 ,, "" , ""

thank you.

use stringio treat stings file-like object

>>> import csv >>> stringio import stringio >>> string=r'"20568078","240431","jpg","st, carolina 1920",,' >>> r in csv.reader(stringio(string)):         print (r)   ['20568078', '240431', 'jpg', 'st, carolina 1920', '', '']

http://docs.python.org/2/library/csv.html#csv.reader

csv.reader(csvfile, dialect='excel', **fmtparams)

return reader object iterate on lines in given csvfile. csvfile can object supports iterator protocol , returns string each time next() method called — file objects , list objects both suitable.

the problem code passing single string reader. reader interprets each character line. eg. 

>>> string=r'"20568078","240431","jpg","st, carolina 1920",,' >>> = iter(string) >>> next(i) '"' >>> next(i) '2'

is approximately how csv calls next on iterable pass it. use doublequotes represent multiline strings explains why come in 1 piece.


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