diff --git a/rhodecode/apps/channelstream/__init__.py b/rhodecode/apps/channelstream/__init__.py
--- a/rhodecode/apps/channelstream/__init__.py
+++ b/rhodecode/apps/channelstream/__init__.py
@@ -63,7 +63,7 @@ def maybe_create_history_store(event):
     settings = event.app.registry.settings
     history_dir = settings.get('channelstream.history.location', '')
     if history_dir and not os.path.exists(history_dir):
-        os.makedirs(history_dir, 0750)
+        os.makedirs(history_dir, 0o750)
 
 
 def includeme(config):
diff --git a/rhodecode/config/middleware.py b/rhodecode/config/middleware.py
--- a/rhodecode/config/middleware.py
+++ b/rhodecode/config/middleware.py
@@ -476,7 +476,7 @@ def _sanitize_cache_settings(settings):
 
     # ensure we have our dir created
     if not os.path.isdir(default_cache_dir):
-        os.makedirs(default_cache_dir, mode=0755)
+        os.makedirs(default_cache_dir, mode=0o755)
 
     # exception store cache
     _string_setting(
diff --git a/rhodecode/lib/vcs/backends/base.py b/rhodecode/lib/vcs/backends/base.py
--- a/rhodecode/lib/vcs/backends/base.py
+++ b/rhodecode/lib/vcs/backends/base.py
@@ -50,8 +50,8 @@ from rhodecode.lib.vcs.exceptions import
 log = logging.getLogger(__name__)
 
 
-FILEMODE_DEFAULT = 0100644
-FILEMODE_EXECUTABLE = 0100755
+FILEMODE_DEFAULT = 0o100644
+FILEMODE_EXECUTABLE = 0o100755
 
 Reference = collections.namedtuple('Reference', ('type', 'name', 'commit_id'))
 MergeResponse = collections.namedtuple(
@@ -209,7 +209,7 @@ class BaseRepository(object):
     def get_create_shadow_cache_pr_path(self, db_repo):
         path = db_repo.cached_diffs_dir
         if not os.path.exists(path):
-            os.makedirs(path, 0755)
+            os.makedirs(path, 0o755)
         return path
 
     @classmethod
@@ -1046,7 +1046,7 @@ class BaseCommit(object):
                 ('tags', ','.join(self.tags)),
             ]
             meta = ["%s:%s" % (f_name, value) for f_name, value in metadata]
-            file_info.append(('.archival.txt', 0644, False, '\n'.join(meta)))
+            file_info.append(('.archival.txt', 0o644, False, '\n'.join(meta)))
 
         connection.Hg.archive_repo(file_path, mtime, file_info, kind)
 
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
@@ -161,7 +161,7 @@ class GitRepository(BaseRepository):
                 GitRepository.check_url(src_url, self.config)
 
             if create:
-                os.makedirs(self.path, mode=0755)
+                os.makedirs(self.path, mode=0o755)
 
                 if bare:
                     self._remote.init_bare()
diff --git a/rhodecode/lib/vcs/backends/hg/repository.py b/rhodecode/lib/vcs/backends/hg/repository.py
--- a/rhodecode/lib/vcs/backends/hg/repository.py
+++ b/rhodecode/lib/vcs/backends/hg/repository.py
@@ -355,7 +355,7 @@ class MercurialRepository(BaseRepository
             create = False
 
         if create:
-            os.makedirs(self.path, mode=0755)
+            os.makedirs(self.path, mode=0o755)
 
         self._remote.localrepository(create)
 
diff --git a/rhodecode/model/repo_group.py b/rhodecode/model/repo_group.py
--- a/rhodecode/model/repo_group.py
+++ b/rhodecode/model/repo_group.py
@@ -181,7 +181,7 @@ class RepoGroupModel(BaseModel):
         self.check_exist_filesystem(group_name)
         create_path = os.path.join(self.repos_path, group_name)
         log.debug('creating new group in %s', create_path)
-        os.makedirs(create_path, mode=0755)
+        os.makedirs(create_path, mode=0o755)
         log.debug('created group in %s', create_path)
 
     def _rename_group(self, old, new):
diff --git a/rhodecode/tests/vcs/test_git.py b/rhodecode/tests/vcs/test_git.py
--- a/rhodecode/tests/vcs/test_git.py
+++ b/rhodecode/tests/vcs/test_git.py
@@ -538,7 +538,7 @@ TODO: To be written...
                 'sys.exit(1)',
             ]
             f.write('\n'.join(script_lines))
-        os.chmod(hook_path, 0755)
+        os.chmod(hook_path, 0o755)
 
     def test_local_push_does_not_execute_hook(self):
         target_repo = self.get_empty_repo()
@@ -1061,7 +1061,7 @@ class TestGitSpecificWithRepo(BackendTes
                     FileNode('foobar/static/js/admin/base.js', content='base'),
                     FileNode(
                         'foobar/static/admin', content='admin',
-                        mode=0120000),  # this is a link
+                        mode=0o120000),  # this is a link
                     FileNode('foo', content='foo'),
                 ],
             },
diff --git a/rhodecode/tests/vcs/test_nodes.py b/rhodecode/tests/vcs/test_nodes.py
--- a/rhodecode/tests/vcs/test_nodes.py
+++ b/rhodecode/tests/vcs/test_nodes.py
@@ -190,13 +190,13 @@ class TestNodeBasics:
         assert not mode & stat.S_IXOTH
 
     def test_file_node_is_executable(self):
-        node = FileNode('foobar', 'empty... almost', mode=0100755)
+        node = FileNode('foobar', 'empty... almost', mode=0o100755)
         assert node.is_executable
 
-        node = FileNode('foobar', 'empty... almost', mode=0100500)
+        node = FileNode('foobar', 'empty... almost', mode=0o100500)
         assert node.is_executable
 
-        node = FileNode('foobar', 'empty... almost', mode=0100644)
+        node = FileNode('foobar', 'empty... almost', mode=0o100644)
         assert not node.is_executable
 
     def test_file_node_is_not_symlink(self):