Prints out the directory of an empty file in a given root directory

empty_files.py

import os
import sys
import argparse

def empty_files(rootdir):
	for subdir, dirs, files in os.walk(rootdir):
		for file in files:
			if os.path.getsize(os.path.join(subdir, file)) == 0:
				print os.path.join(subdir, file)
			
def main():
	parser = argparse.ArgumentParser()
	parser.add_argument("root_dir", help="Name of the root directory")
	args = parser.parse_args()

	if not empty_files(args.root_dir):
		sys.exit(1)

if __name__ == "__main__":
	main()