nchlswtsn

import sys
length = len(sys.argv)
script = sys.argv[0]

if len(sys.argv) == 1:
  print "You supplied %d arguments at run time exclusively consisting of %s" % (length, script)
  user_n = int(raw_input("Please enter a max limit: "))
else:
  user_n = int(sys.argv[1])
  print "You supplied {} arguments at run time".format(len(sys.argv))