import zlib, glob, os

orig = new = 0
for dirname, dirs, files in os.walk('.'):
    for filename in glob.glob(dirname + '/*.pyc'):
        with open(filename, 'rb') as f:
            data = f.read()
            f_orig = len(data)
            f_new = len(zlib.compress(data))
            print('%8d -> %8d %s' % (f_orig, f_new, filename))
            orig += f_orig
            new += f_new

print('%8d -> %8d %s' % (orig, new, 'Total'))