diff --git a/rhodecode/controllers/feed.py b/rhodecode/controllers/feed.py
--- a/rhodecode/controllers/feed.py
+++ b/rhodecode/controllers/feed.py
@@ -87,9 +87,8 @@ class FeedController(BaseRepoController)
         return diff_processor, changes
 
     def __get_desc(self, cs):
-        desc_msg = []
-        desc_msg.append((_('%s committed on %s')
-                         % (h.person(cs.author), h.fmt_date(cs.date))) + '<br/>')
+        desc_msg = [(_('%s committed on %s')
+                     % (h.person(cs.author), h.fmt_date(cs.date))) + '<br/>']
         #branches, tags, bookmarks
         if cs.branch:
             desc_msg.append('branch: %s<br/>' % cs.branch)
diff --git a/rhodecode/lib/helpers.py b/rhodecode/lib/helpers.py
--- a/rhodecode/lib/helpers.py
+++ b/rhodecode/lib/helpers.py
@@ -598,11 +598,9 @@ def action_parser(user_log, feed=False, 
                         'ref_name': _name
                     })
                     revs.append(_rev)
-        cs_links = []
-        cs_links.append(" " + ', '.join(
+        cs_links = [" " + ', '.join(
             [lnk(rev, repo_name) for rev in revs[:revs_limit]]
-            )
-        )
+        )]
         _op1, _name1 = _get_op(revs_ids[0])
         _op2, _name2 = _get_op(revs_ids[-1])
 
diff --git a/rhodecode/lib/middleware/simplegit.py b/rhodecode/lib/middleware/simplegit.py
--- a/rhodecode/lib/middleware/simplegit.py
+++ b/rhodecode/lib/middleware/simplegit.py
@@ -55,8 +55,7 @@ class SimpleGitUploadPackHandler(dulserv
         self.progress("counting objects: %d, done.\n" % len(objects_iter))
         dulserver.write_pack_objects(dulserver.ProtocolFile(None, write),
                                      objects_iter)
-        messages = []
-        messages.append('thank you for using rhodecode')
+        messages = ['thank you for using rhodecode']
 
         for msg in messages:
             self.progress(msg + "\n")
diff --git a/rhodecode/lib/vcs/backends/git/config.py b/rhodecode/lib/vcs/backends/git/config.py
--- a/rhodecode/lib/vcs/backends/git/config.py
+++ b/rhodecode/lib/vcs/backends/git/config.py
@@ -318,9 +318,7 @@ class StackedConfig(Config):
         specified), the users' home directory and the system
         configuration.
         """
-        paths = []
-        paths.append(os.path.expanduser("~/.gitconfig"))
-        paths.append("/etc/gitconfig")
+        paths = [os.path.expanduser("~/.gitconfig"), "/etc/gitconfig"]
         backends = []
         for path in paths:
             try:
diff --git a/rhodecode/lib/vcs/backends/git/repository.py b/rhodecode/lib/vcs/backends/git/repository.py
--- a/rhodecode/lib/vcs/backends/git/repository.py
+++ b/rhodecode/lib/vcs/backends/git/repository.py
@@ -635,9 +635,7 @@ class GitRepository(BaseRepository):
         Tries to pull changes from external location.
         """
         url = self._get_url(url)
-        cmd = ['pull']
-        cmd.append("--ff-only")
-        cmd.append(url)
+        cmd = ['pull', "--ff-only", url]
         cmd = ' '.join(cmd)
         # If error occurs run_git_command raises RepositoryError already
         self.run_git_command(cmd)