Command-line pretty-priner for JSON (one value, can be multi-line)

ppjson1.py

#! /usr/local/bin/python

# Slightly modified from the module's own __main__ behavior (according to the interwebs).

import sys, json

infile = sys.stdin
outfile = sys.stdout

with infile:
  obj = json.load(infile)
with outfile:
  json.dump(obj, outfile, indent=2, separators=(',', ': '))
  outfile.write('\n')  # final newline for usability in the shell