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Diffstat (limited to 'lib/python2.7/json/tool.py')
-rw-r--r-- | lib/python2.7/json/tool.py | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/lib/python2.7/json/tool.py b/lib/python2.7/json/tool.py new file mode 100644 index 0000000..fc5d749 --- /dev/null +++ b/lib/python2.7/json/tool.py @@ -0,0 +1,40 @@ +r"""Command-line tool to validate and pretty-print JSON + +Usage:: + + $ echo '{"json":"obj"}' | python -m json.tool + { + "json": "obj" + } + $ echo '{ 1.2:3.4}' | python -m json.tool + Expecting property name enclosed in double quotes: line 1 column 3 (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(sys.argv[0] + " [infile [outfile]]") + with infile: + try: + obj = json.load(infile) + except ValueError, e: + raise SystemExit(e) + with outfile: + json.dump(obj, outfile, sort_keys=True, + indent=4, separators=(',', ': ')) + outfile.write('\n') + + +if __name__ == '__main__': + main() |