diff --git a/lang/python/examples/howto/symcrypt-file.py b/lang/python/examples/howto/symcrypt-file.py
index 2e6ece4b..785a4d04 100755
--- a/lang/python/examples/howto/symcrypt-file.py
+++ b/lang/python/examples/howto/symcrypt-file.py
@@ -1,63 +1,63 @@
 #!/usr/bin/env python3
 # -*- coding: utf-8 -*-
 
 from __future__ import absolute_import, division, unicode_literals
 
 import gpg
 import sys
 
 # Copyright (C) 2018 Ben McGinnes <ben@gnupg.org>
 #
 # This program is free software; you can redistribute it and/or modify it under
 # the terms of the GNU General Public License as published by the Free Software
 # Foundation; either version 2 of the License, or (at your option) any later
 # version.
 #
 # This program is free software; you can redistribute it and/or modify it under
 # the terms of the GNU Lesser General Public License as published by the Free
 # Software Foundation; either version 2.1 of the License, or (at your option)
 # any later version.
 #
 # This program is distributed in the hope that it will be useful, but WITHOUT
 # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 # FOR A PARTICULAR PURPOSE.  See the GNU General Public License and the GNU
 # Lesser General Public Licensefor more details.
 #
 # You should have received a copy of the GNU General Public License and the GNU
 # Lesser General Public along with this program; if not, see
 # <http://www.gnu.org/licenses/>.
 
 """
 Symmetrically encrypts a file.  Passphrase will be prompted for via Pinentry.
 
 Will produce both an ASCII armoured and GPG binary format copy of the encrypted
 file.
 """
 
 if len(sys.argv) > 2:
     filename = " ".join(sys.argv[1:])
 elif len(sys.argv) == 2:
     filename = sys.argv[1]
 else:
     filename = input("Enter the path and filename to encrypt: ")
 
 with open(filename, "rb") as f:
     text = f.read()
 
 with gpg.Context(armor=True) as ca:
     try:
-        ciphertext, result, sign_result = ca.encrypt(text, passphrase=True,
+        ciphertext, result, sign_result = ca.encrypt(text, passphrase=None,
                                                      sign=False)
         with open("{0}.asc".format(filename), "wb") as fa:
             fa.write(ciphertext)
     except gpg.errors.GPGMEError as e:
         print(e)
 
 with gpg.Context() as cg:
     try:
-        ciphertext, result, sign_result = cg.encrypt(text, passphrase=True,
+        ciphertext, result, sign_result = cg.encrypt(text, passphrase=None,
                                                      sign=False)
         with open("{0}.gpg".format(filename), "wb") as fg:
             fg.write(ciphertext)
     except gpg.errors.GPGMEError as e:
         print(e)