[SOLVED]passing a lot of information to subprocess.call()

[buran]

well, now you can learn how to do it with python, without system calls and without need of 2 intermediate files...

from collections import Counter

with open('first.txt', 'r') as f1:
    names = [ln.strip() for i, ln in enumerate(f1) if i%2]
with open('fourth.txt', 'w') as f4:
    for key, value in sorted(Counter(names).items()):
        f4.write('{} {}\n'.format(key, value))