Remove all Log.x function calls in a project for Android

trim.py

#!/usr/bin/env python

import sys
import os
import re

def gather(path):
    result = []
    def f(arg, dirname, names):
        for name in names:
            filename = os.path.join(dirname, name)
            if os.path.isfile(filename) and os.path.splitext(name)[1] == '.java':
                result.append(filename)
    os.path.walk(path, f, None)
    return result

if __name__ == '__main__':
    l = gather('./')
    e = re.compile(r'^\s*Log\.([idevw]|wtf)\s*\(.+?\);\s*?\n', re.M | re.S)
    for i, filename in enumerate(l):
        file = open(filename, 'r')
        text = file.read()
        text = e.sub('', text)
        file.close()
        file = open(filename, 'w')
        file.write(text)
        file.close
        print '\033[2K\033[30D%d of %d processed'%(i + 1, len(l)), 
        sys.stdout.flush()
    print '\ndone'