python: read lines from compressed text files

Question

Is it easy to read a line from a gz-compressed text file using python without extracting the file completely? I have a text.gz file which is aroud 200mb. When I extract it,

Answer 1

Using gzip.GzipFile:

import gzip

with gzip.open('input.gz','rt') as f:
    for line in f:
        print('got line', line)

Note: gzip.open(filename, mode) is an alias for gzip.GzipFile(filename, mode). I prefer the former, as it looks similar to with open(...) as f: used for opening uncompressed files.