Using csvreader against a gzipped file in Python

Question

I have a bunch of gzipped CSV files that I\'d like to open for inspection using Python\'s built in CSV reader. I\'d like to do this without having first to manually unzip t

Answer 1

a more complete solution:

import csv, gzip
class GZipCSVReader:
    def __init__(self, filename):
        self.gzfile = gzip.open(filename)
        self.reader = csv.DictReader(self.gzfile)
    def next(self):
        return self.reader.next()
    def close(self):
        self.gzfile.close()
    def __iter__(self):
        return self.reader.__iter__()

now you can use it like this:

r = GZipCSVReader('my.csv')
for map in r:
    for k,v in map:
        print k,v
r.close()

EDIT: following the below comment, how about a simpler approach:

def gzipped_csv(filename):
    with gzip.open(filename) as f:
        r = csv.DictReader(f)
        for row in r:
            yield row

which let's you then

for row in gzipped_csv(filename):
    for k, v in row:
        print(k, v)