diff --git a/moulinette/__init__.py b/moulinette/__init__.py
index d27acac6..cf1992b8 100755
--- a/moulinette/__init__.py
+++ b/moulinette/__init__.py
@@ -85,14 +85,17 @@ def api(host="localhost", port=80, routes={}):
 
     """
     from moulinette.interfaces.api import Interface as Api
+
     try:
         Api(routes=routes).run(host, port)
     except MoulinetteError as e:
         import logging
+
         logging.getLogger().error(e.strerror)
         return 1
     except KeyboardInterrupt:
         import logging
+
         logging.getLogger().info(m18n.g("operation_interrupted"))
     return 0
 
@@ -111,11 +114,15 @@ def cli(args, top_parser, output_as=None, timeout=None):
 
     """
     from moulinette.interfaces.cli import Interface as Cli
+
     try:
         load_only_category = args[0] if args and not args[0].startswith("-") else None
-        Cli(top_parser=top_parser, load_only_category=load_only_category).run(args, output_as=output_as, timeout=timeout)
+        Cli(top_parser=top_parser, load_only_category=load_only_category).run(
+            args, output_as=output_as, timeout=timeout
+        )
     except MoulinetteError as e:
         import logging
+
         logging.getLogger().error(e.strerror)
         return 1
     return 0
diff --git a/moulinette/actionsmap.py b/moulinette/actionsmap.py
index 2fe17d71..7a365469 100644
--- a/moulinette/actionsmap.py
+++ b/moulinette/actionsmap.py
@@ -411,7 +411,9 @@ class ActionsMap(object):
 
     def __init__(self, top_parser, load_only_category=None):
 
-        assert isinstance(top_parser, BaseActionsMapParser), "Invalid parser class '%s'" % top_parser.__class__.__name__
+        assert isinstance(top_parser, BaseActionsMapParser), (
+            "Invalid parser class '%s'" % top_parser.__class__.__name__
+        )
 
         moulinette_env = init_moulinette_env()
         DATA_DIR = moulinette_env["DATA_DIR"]
@@ -451,7 +453,11 @@ class ActionsMap(object):
             # If we filter it even if it doesn't exist, we'll end up with a
             # weird help message when we do a typo in the category name..
             if load_only_category and load_only_category in actionsmaps[n]:
-                actionsmaps[n] = {k: v for k, v in actionsmaps[n].items() if k in [load_only_category, "_global"]}
+                actionsmaps[n] = {
+                    k: v
+                    for k, v in actionsmaps[n].items()
+                    if k in [load_only_category, "_global"]
+                }
 
             # Load translations
             m18n.load_namespace(n)
@@ -600,7 +606,9 @@ class ActionsMap(object):
 
         # Look for all files that match the given patterns in the actionsmap dir
         for namespace_pattern in NAMESPACE_PATTERNS:
-            namespaces.extend(glob.glob("%s/actionsmap/%s.yml" % (DATA_DIR, namespace_pattern)))
+            namespaces.extend(
+                glob.glob("%s/actionsmap/%s.yml" % (DATA_DIR, namespace_pattern))
+            )
 
         # Keep only the filenames with extension
         namespaces = [os.path.basename(n)[:-4] for n in namespaces]
diff --git a/moulinette/globals.py b/moulinette/globals.py
index 025aab52..8a169cea 100644
--- a/moulinette/globals.py
+++ b/moulinette/globals.py
@@ -11,5 +11,7 @@ def init_moulinette_env():
             "MOULINETTE_LOCALES_DIR", "/usr/share/moulinette/locale"
         ),
         "CACHE_DIR": environ.get("MOULINETTE_CACHE_DIR", "/var/cache/moulinette"),
-        "NAMESPACES": environ.get("MOULINETTE_NAMESPACES", "*").split(),  # By default we'll load every namespace we find
+        "NAMESPACES": environ.get(
+            "MOULINETTE_NAMESPACES", "*"
+        ).split(),  # By default we'll load every namespace we find
     }
diff --git a/moulinette/interfaces/api.py b/moulinette/interfaces/api.py
index f251c215..4714dd09 100644
--- a/moulinette/interfaces/api.py
+++ b/moulinette/interfaces/api.py
@@ -288,10 +288,7 @@ class _ActionsMapPlugin(object):
 
         # Append messages route
         app.route(
-            "/messages",
-            name="messages",
-            callback=self.messages,
-            skip=["actionsmap"],
+            "/messages", name="messages", callback=self.messages, skip=["actionsmap"],
         )
 
         # Append routes from the actions map
@@ -796,18 +793,14 @@ class Interface(BaseInterface):
 
         """
         logger.debug(
-            "starting the server instance in %s:%d",
-            host,
-            port,
+            "starting the server instance in %s:%d", host, port,
         )
 
         try:
             from gevent.pywsgi import WSGIServer
             from geventwebsocket.handler import WebSocketHandler
 
-            server = WSGIServer(
-                (host, port), self._app, handler_class=WebSocketHandler
-            )
+            server = WSGIServer((host, port), self._app, handler_class=WebSocketHandler)
             server.serve_forever()
         except IOError as e:
             logger.exception("unable to start the server instance on %s:%d", host, port)
diff --git a/moulinette/interfaces/cli.py b/moulinette/interfaces/cli.py
index 186c0c89..d8e2dd2b 100644
--- a/moulinette/interfaces/cli.py
+++ b/moulinette/interfaces/cli.py
@@ -431,7 +431,10 @@ class Interface(BaseInterface):
             msignals.set_handler("authenticate", self._do_authenticate)
             msignals.set_handler("prompt", self._do_prompt)
 
-        self.actionsmap = ActionsMap(ActionsMapParser(top_parser=top_parser), load_only_category=load_only_category)
+        self.actionsmap = ActionsMap(
+            ActionsMapParser(top_parser=top_parser),
+            load_only_category=load_only_category,
+        )
 
     def run(self, args, output_as=None, timeout=None):
         """Run the moulinette
diff --git a/test/conftest.py b/test/conftest.py
index 3f400b17..8e0ec8ac 100644
--- a/test/conftest.py
+++ b/test/conftest.py
@@ -126,6 +126,7 @@ def moulinette_webapi(moulinette):
     CookiePolicy.return_ok_secure = return_true
 
     from moulinette.interfaces.api import Interface as Api
+
     return TestApp(Api(routes={})._app)
 
 
@@ -144,6 +145,7 @@ def moulinette_cli(moulinette, mocker):
     )
     mocker.patch("os.isatty", return_value=True)
     from moulinette.interfaces.cli import Interface as Cli
+
     cli = Cli(top_parser=parser)
     mocker.stopall()