example: key selection

* Similar to group-key-selection.py, but does not use an existing
  group from gpg.conf; instead takes multiple key IDs, fingerprints or
  patterns on the command line and adds them to a keylist object.

1 files changed, 52 insertions, 0 deletions

diff --git a/lang/python/examples/howto/key-selection.py b/lang/python/examples/howto/key-selection.py
new file mode 100755
index 00000000..8c2d7b58
--- /dev/null
+++ b/lang/python/examples/howto/key-selection.py
@@ -0,0 +1,52 @@
+#!/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
+
+"""
+Uses key IDs, fingerprints or other patterns as space separated input and
+creates a keylist object for use by the gpg module.
+
+Similar to the group-key-selection.py script, but does not require an existing
+group in the gpg.conf file.
+"""
+
+if len(sys.argv) < 2:
+    key_ids_str = sys.argv[1:]
+elif len(sys.argv) == 2:
+    key_ids_str = sys.argv[1]
+elif len(sys.argv) == 1:
+    key_ids_str = input("Enter the keys to select by key ID or fingerprint: ")
+else:
+    key_ids_str = input("Enter the keys to select by key ID or fingerprint: ")
+
+key_ids = key_ids_str.split()
+keys = []
+for i in range(len(key_ids)):
+    logrus = key_ids[i]
+    keys.append(gpg.Context().keylist(pattern=logrus))
+