A minifier for Brainfuck scripts.

minify.py

import sys

def main():
	min_file_name = sys.argv[1].split('.')
	min_file_name.insert(len(sys.argv) - 1, "min")
	min_file_name = '.'.join(min_file_name)

	with open(min_file_name, "w+") as min_file:
		final = ""
		with open(sys.argv[1]) as src_file:
			for c in src_file.read():
				if c in "<>.,+-[]":
					final += c
		min_file.write(final)

if __name__ == "__main__":
	main()