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//usr/lib64/python2.6/json/tool.py
r"""Command-line tool to validate and pretty-print JSON Usage:: $ echo '{"json":"obj"}' | python -mjson.tool { "json": "obj" } $ echo '{ 1.2:3.4}' | python -mjson.tool Expecting property name: line 1 column 2 (char 2) """ import sys import json def main(): if len(sys.argv) == 1: infile = sys.stdin outfile = sys.stdout elif len(sys.argv) == 2: infile = open(sys.argv[1], 'rb') outfile = sys.stdout elif len(sys.argv) == 3: infile = open(sys.argv[1], 'rb') outfile = open(sys.argv[2], 'wb') else: raise SystemExit("{0} [infile [outfile]]".format(sys.argv[0])) try: obj = json.load(infile) except ValueError, e: raise SystemExit(e) json.dump(obj, outfile, sort_keys=True, indent=4) outfile.write('\n') if __name__ == '__main__': main()
