code: def main(argv=None):
      
      print (transliterate('jaya gaNeza! zrIrAmajayam', 'harvardkyoto', 'devanagari'))
      if argv is None:
          argv = sys.argv
      try:    
          text, inFormat, outFormat = argv[1:4]
      except ValueError:
          print (main.__doc__)
          return 2
      inFormat = inFormat.upper()
      outFormat = outFormat.upper()
      # try assuming "text" is a filename
      try:
          f = open(text)
      except IOError:
          # it wasn't, so it must be the actual text
          print (transliterate(text, inFormat, outFormat))
          return 0
      else:
          i = 1
          for text in f.readlines():
              if len(text) > 0 and not text.startswith('#'):
                  print (transliterate(text, inFormat, outFormat).strip('\n'))
              i = i + 1
          f.close()
          return 0
docs: Call transliterator from a command line.
      
      python transliterator.py text inputFormat outputFormat
      
      ... writes the transliterated text to stdout
      
      text -- the text to be transliterated OR the name of a file containing the text
      inputFormat -- the name of the character block or transliteration scheme that
                     the text is to be transliterated FROM, e.g. 'CYRILLIC', 'IAST'.
                     Not case-sensitive
      outputFormat -- the name of the character block or transliteration scheme that
                     the text is to be transliterated TO, e.g. 'CYRILLIC', 'IAST'.
                     Not case-sensitive