[merge] cleanup from -catbox branch

pisi/packagedb.py

@@ -17,18 +17,12 @@ we basically store everything in PackageInfo class
 yes, we are cheap
 """
 
-import os
-import fcntl
-import types
-
 import gettext
 __trans = gettext.translation('pisi', fallback=True)
 _ = __trans.ugettext
 
 import pisi
-import pisi.util as util
 import pisi.context as ctx
-import pisi.lockeddbshelve as shelve
 import pisi.itembyrepodb
 
 class Error(pisi.Error):
@@ -61,7 +55,7 @@ class PackageDB(object):
     def get_package(self, name, repo=None, txn = None):
         try:
             return self.d.get_item(name, repo, txn=txn)
-        except pisi.itembyrepodb.NotfoundError, e:
+        except pisi.itembyrepodb.NotfoundError:
             raise Error(_('Package %s not found') % name)
 
     def get_package_repo(self, name, repo=None, txn = None):