code: def get_auth():
      
      import getpass
      from requests.auth import HTTPDigestAuth
      #This binds raw_input to input for Python 2
      input_func = input
      try:
          input_func = raw_input
      except NameError:
          pass
      uname = input_func("MODSCAG Username:")
      pw = getpass.getpass("MODSCAG Password:")
      auth = HTTPDigestAuth(uname, pw)
      #wget -A'h8v4*snow_fraction.tif' --user=uname --password=pw
      return auth
docs: Get authorization token for https