diff --git a/swh/web/api/apidoc.py b/swh/web/api/apidoc.py
--- a/swh/web/api/apidoc.py
+++ b/swh/web/api/apidoc.py
@@ -73,8 +73,8 @@
         # remove parsed document markups
         par = re.sub('<[^<]+?>', '', par)
         # api urls cleanup to generate valid links afterwards
-        par = re.sub('\(\w+\)', '', par) # noqa
-        par = re.sub('\[.*\]', '', par) # noqa
+        par = re.sub(r'\(\w+\)', '', par)
+        par = re.sub(r'\[.*\]', '', par)
         par = par.replace('//', '/')
         # transform references to api endpoints into valid rst links
         par = re.sub(':http:get:`([^,]*)`', r'`<\1>`_', par)
diff --git a/swh/web/api/views/utils.py b/swh/web/api/views/utils.py
--- a/swh/web/api/views/utils.py
+++ b/swh/web/api/views/utils.py
@@ -15,7 +15,7 @@
 def api_lookup(lookup_fn, *args,
                notfound_msg='Object not found',
                enrich_fn=None):
-    """
+    r"""
     Capture a redundant behavior of:
         - looking up the backend with a criteria (be it an identifier or
           checksum) passed to the function lookup_fn
@@ -39,7 +39,7 @@
     Raises:
         NotFoundExp or whatever `lookup_fn` raises.
 
-    """ # noqa
+    """
     if enrich_fn is None:
         enrich_fn = (lambda x: x)
     res = lookup_fn(*args)