example: group key selection

* Example of preparing a keylist object using an existing group line
  from the gpg.conf file.

1 files changed, 56 insertions, 0 deletions

diff --git a/lang/python/examples/howto/group-key-selection.py b/lang/python/examples/howto/group-key-selection.py
new file mode 100755
index 00000000..2e3d2ebb
--- /dev/null
+++ b/lang/python/examples/howto/group-key-selection.py
@@ -0,0 +1,56 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+
+from __future__ import absolute_import, division, unicode_literals
+
+# 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/>.
+
+import gpg
+import sys
+
+from groups import group_lists
+
+"""
+Takes an existing group specified as a command line parameter and converts it
+to a list object 'keys' as expected by the gpg module.
+
+Requires the groups module in this directory.
+"""
+
+if len(sys.argv) == 2:
+    group = sys.argv[1]
+elif len(sys.argv) == 1:
+    group = input("Enter the name of the group to select keys for: ")
+else:
+    group = input("Enter the name of the group to select keys for: ")
+
+keys = []
+a = []
+
+for i in range(len(group_lists)):
+    a.append(group_lists[i][0])
+
+b = a.index(group)
+
+for i in range(len(group_lists[b][1])):
+    logrus = group_lists[b][1][i]
+    keys.append(gpg.Context().keylist(pattern=logrus))