1 r"""

     2 Using simplejson from the shell to validate and

     3 pretty-print::

     4     

     5     $ echo '{"json":"obj"}' | python -msimplejson

     6     {

     7         "json": "obj"

     8     }

     9     $ echo '{ 1.2:3.4}' | python -msimplejson

    10     Expecting property name: line 1 column 2 (char 2)

    11 

    12 Note that the JSON produced by this module's default settings

    13 is a subset of YAML, so it may be used as a serializer for that as well.

    14 """

    15 import django.utils.simplejson

    16 

    17 #

    18 # Pretty printer:

    19 #     curl http://mochikit.com/examples/ajax_tables/domains.json | python -msimplejson.tool

    20 #

    21 

    22 def main():

    23     import sys

    24     if len(sys.argv) == 1:

    25         infile = sys.stdin

    26         outfile = sys.stdout

    27     elif len(sys.argv) == 2:

    28         infile = open(sys.argv[1], 'rb')

    29         outfile = sys.stdout

    30     elif len(sys.argv) == 3:

    31         infile = open(sys.argv[1], 'rb')

    32         outfile = open(sys.argv[2], 'wb')

    33     else:

    34         raise SystemExit("%s [infile [outfile]]" % (sys.argv[0],))

    35     try:

    36         obj = simplejson.load(infile)

    37     except ValueError, e:

    38         raise SystemExit(e)

    39     simplejson.dump(obj, outfile, sort_keys=True, indent=4)

    40     outfile.write('\n')

    41 

    42 

    43 if __name__ == '__main__':

    44     main()