normalize_whitespace

#!/usr/bin/env python
"""
Removes trailing whitespace from the file in sys.argv[1]
Example:
    ./normalize_whitespace foo.py

or:
    find -type f | xargs -n1 ./normalize_whitespace
"""
import re
import sys
with open(sys.argv[1]) as f: c = f.read().split('\n')
with open(sys.argv[1], 'w') as f:
    for line in c:
        if not line.isspace():
            f.write(line.rstrip())
        f.write('\n')
    f.truncate(f.tell()-1)