walks through a folder, collects python files, calls futurize

future-walker.py

from __future__ import print_function
import glob
import os
import subprocess

blacklist = [__file__, 'venv', 'venv3', 'build', 'dist']


def walker(path):
	"""Folder walker that collects .py files
	"""
	files = []
	for fn in glob.glob(os.path.join(path, "*")):		
		if fn in [os.path.join(path, x) for x in blacklist]:
		 	continue		
		if os.path.isdir(fn):
			files.extend(walker(fn))
		elif os.path.splitext(fn)[-1] == '.py':
			files.append(fn)
	return files


def future(path):
	"""Runs futurize on python files

	See: http://python-future.org/automatic_conversion.html
	"""
	print(path)
	print(subprocess.check_output(['futurize', '--stage1', path])) # '-w', '--unicode-literals'
	print()


if __name__ == '__main__':
	for fn in walker('.'):
		future(fn)