Pretty-print JSON data to the console

jsonpp.py

#!/usr/bin/env python

import json, sys

if len(sys.argv) < 2 or sys.argv[1] == '-':
	f = sys.stdin
else:
	f = open(sys.argv[1])

json.dump(json.load(f), sys.stdout, indent=4, separators=(',', ': '))
print()