echo '{"json":"obj"}' | python -m json.tool
import sys
import json
import codecs
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]]")
try:
obj = json.load(infile)
except ValueError, e:
raise SystemExit(e)
s = json.dumps(obj, sort_keys=True, indent=4, ensure_ascii=False)
outfile.write(codecs.encode(s, 'utf-8'))
outfile.write('\n')
if __name__ == '__main__':
main()
