port keyringanalyzer to Python3

- ran through 2to3
- switch to new ConfigParser name
- fix UTF-8 handling of gpg output
- don't track tags and keyringcache.db in git

.gitignore

@@ -6,3 +6,5 @@ data/
 .ropeproject/
 *.mo
 *.pot
+tags
+debianmemberportfolio/model/keyringcache.db

debianmemberportfolio/model/keyringanalyzer.py

@@ -3,7 +3,7 @@
 #
 # Debian Member Portfolio Service application key ring analyzer tool
 #
-# Copyright © 2009-2014 Jan Dittberner <jan@dittberner.info>
+# Copyright © 2009-2015 Jan Dittberner <jan@dittberner.info>
 #
 # This file is part of the Debian Member Portfolio Service.
 #
@@ -26,10 +26,10 @@ retrieved data in a file database. The tool was inspired by Debian
 qa's carnivore.
 """
 
-import anydbm
+import dbm
 import pkg_resources
 import glob
-import ConfigParser
+import configparser
 import os
 import os.path
 import logging
@@ -38,7 +38,7 @@ import sys
 import email.utils
 
 
-CONFIG = ConfigParser.SafeConfigParser()
+CONFIG = configparser.ConfigParser()
 
 
 def _get_keyrings():
@@ -160,11 +160,11 @@ def process_keyrings():
             stdout=subprocess.PIPE)
         fpr = None
         for line in proc.stdout.readlines():
-            fpr = process_gpg_list_keys_line(line, fpr)
+            fpr = process_gpg_list_keys_line(line.decode('utf8'), fpr)
         retcode = proc.wait()
         if retcode != 0:
             logging.error("subprocess ended with return code %d", retcode)
-    db = anydbm.open(pkg_resources.resource_filename(__name__,
+    db = dbm.open(pkg_resources.resource_filename(__name__,
                                                      'keyringcache'), 'c')
     for key in resultdict:
         db[key] = ":".join(resultdict[key])
@@ -173,9 +173,9 @@ def process_keyrings():
 
 if __name__ == '__main__':
     logging.basicConfig(stream=sys.stderr, level=logging.WARNING)
-    CONFIG.readfp(pkg_resources.resource_stream(
-        __name__, 'portfolio.ini'))
+    CONFIG.read_string(pkg_resources.resource_string(
+        __name__, 'portfolio.ini').decode('utf8'))
     gpghome = os.path.expanduser(CONFIG.get('DEFAULT', 'gnupghome'))
     if not os.path.isdir(gpghome):
-        os.makedirs(gpghome, 0700)
+        os.makedirs(gpghome, 0o700)
     process_keyrings()