python: Clean up and modernize examples.

* lang/python/examples/Examples.rst: Delete file.
* lang/python/examples/t-edit.py: Likewise.  This is actually a test
case and has been moved to 'tests'.
* lang/python/examples/assuan.py: New file.
* lang/python/examples/decryption-filter.py: Likewise.
* lang/python/examples/delkey.py: Modernize.
* lang/python/examples/encrypt-to-all.py: Likewise.
* lang/python/examples/exportimport.py: Likewise.
* lang/python/examples/genkey.py: Likewise.
* lang/python/examples/inter-edit.py: Likewise.
* lang/python/examples/sign.py: Likewise.
* lang/python/examples/signverify.py: Likewise.
* lang/python/examples/simple.py: Likewise.
* lang/python/examples/testCMSgetkey.py: Likewise.
* lang/python/examples/verifydetails.py: Likewise.

Signed-off-by: Justus Winter <[email protected]>

1 files changed, 36 insertions, 43 deletions

diff --git a/lang/python/examples/simple.py b/lang/python/examples/simple.py
index 29a44492..50a3938b 100755
--- a/lang/python/examples/simple.py
+++ b/lang/python/examples/simple.py
@@ -1,52 +1,45 @@
 #!/usr/bin/env python3
+#
+# Copyright (C) 2016 g10 Code GmbH
 # Copyright (C) 2005 Igor Belyi <[email protected]>
 # Copyright (C) 2002 John Goerzen <[email protected]>
 #
-#    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 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 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 for more details.
+# 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 for more details.
 #
-#    You should have received a copy of the GNU General Public License
-#    along with this program; if not, write to the Free Software
-#    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, see <http://www.gnu.org/licenses/>.
 
 import sys
 import os
-from pyme import core, errors
-
-core.check_version(None)
-
-# Set up our input and output buffers.
-
-plain = core.Data('This is my message.')
-cipher = core.Data()
-
-# Initialize our context.
-
-c = core.Context()
-c.set_armor(1)
-
-# Set up the recipients.
-
-sys.stdout.write("Enter name of your recipient: ")
-sys.stdout.flush()
-name = sys.stdin.readline().strip()
-c.op_keylist_start(name, 0)
-r = c.op_keylist_next()
-
-if r == None:
-    print("The key for user \"%s\" was not found" % name)
-else:
-    # Do the encryption.
-    try:
-        c.op_encrypt([r], 1, plain, cipher)
-        cipher.seek(0, os.SEEK_SET)
-        sys.stdout.buffer.write(cipher.read())
-    except errors.GPGMEError as ex:
-        print(ex.getstring())
+import pyme
+
+with pyme.Context(armor=True) as c:
+    recipients = []
+    print("Enter name of your recipient(s), end with a blank line.")
+    while True:
+        line = input()
+        if not line:
+            break
+        new = list(c.keylist(line))
+        if not new:
+            print("Matched no known keys.")
+        else:
+            print("Adding {}.".format(", ".join(k.uids[0].name for k in new)))
+            recipients.extend(new)
+
+    if not recipients:
+        sys.exit("No recipients.")
+
+    print("Encrypting for {}.".format(", ".join(k.uids[0].name
+                                                for k in recipients)))
+
+    ciphertext, _, _ = c.encrypt(b"This is my message,", recipients)
+    sys.stdout.buffer.write(ciphertext)