Super simple validator for JSON files. Shows line and column of error, launches editor at that point.

jsonvalidate.py

#!/usr/bin/python
import sys,json,re,subprocess

try:
        file = open(sys.argv[1])
        l = file.read()
        try:
                json.loads(l)
                print "OK"
        except Exception as e:
                print e
                m = re.search("line (\d*) column (\d*)",str(e))
                if m:
                        ln = int(m.group(1))
                        cn = int(m.group(2))
                        print l.split('\n')[ln-1]
                        print ' '*(cn-1)+'^'
                        do_open = raw_input("Open in Editor? (y/N)")
                        if 'y' in do_open.lower():
                                subprocess.call(['nano', '+{},{}'.format(ln,cn), sys.argv[1]])
                


except Exception as e:
        print e

        print "usage: {} filename_to_validate".format(__file__)
        exit(-1)

exit(0)