Convert all localisation keys from camecase to snakecase

replace.py

import re
import sys, getopt


def convert(name):
    s1 = re.sub('(.)([A-Z][a-z]+)', r'\1_\2', name)
    return re.sub('([a-z0-9])([A-Z])', r'\1_\2', s1).lower()



def main(argv):
   inputfile = ''
   outputfile = ''
   try:
      argv[0]
      opts, args = getopt.getopt(argv,"hi:o:",["ifile=","ofile="])
   except: 
      print ('test.py -i <inputfile> -o <outputfile>')
      sys.exit(2)
   for opt, arg in opts:
      if opt == '-h':
         print ('test.py -i <inputfile> -o <outputfile>')
         sys.exit()
      elif opt in ("-i", "--ifile"):
         inputfile = arg
      elif opt in ("-o", "--ofile"):
         outputfile = arg
   print('Input file is "{0}"'.format(inputfile))
   print('Output file is "{0}"'.format(outputfile))

   with open(inputfile) as f:
       content = f.readlines()
   for i,line in enumerate(content):
       if((line[0] is not '#') and (line[0] is not '\n')):
           parts = line.split('=')
           print(parts)
           content[i]=convert(parts[0])+'='+parts[1]

   with open(outputfile,'w') as f:
       f.writelines(content)



if __name__ == "__main__":
   main(sys.argv[1:])