diff --git a/gitlab/base.py b/gitlab/base.py
index f81d03989..a791db299 100644
--- a/gitlab/base.py
+++ b/gitlab/base.py
@@ -227,7 +227,7 @@ def total(self):
 class RESTManager(object):
     """Base class for CRUD operations on objects.
 
-    Derivated class must define ``_path`` and ``_obj_cls``.
+    Derived class must define ``_path`` and ``_obj_cls``.
 
     ``_path``: Base URL path on which requests will be sent (e.g. '/projects')
     ``_obj_cls``: The class of objects that will be created
diff --git a/gitlab/cli.py b/gitlab/cli.py
index 0ff2f22be..26ea0c05d 100644
--- a/gitlab/cli.py
+++ b/gitlab/cli.py
@@ -98,7 +98,7 @@ def _get_base_parser(add_help=True):
         "-c",
         "--config-file",
         action="append",
-        help=("Configuration file to use. Can be used " "multiple times."),
+        help="Configuration file to use. Can be used multiple times.",
     )
     parser.add_argument(
         "-g",
diff --git a/gitlab/config.py b/gitlab/config.py
index 67301a0c5..4b4d6fdec 100644
--- a/gitlab/config.py
+++ b/gitlab/config.py
@@ -63,7 +63,7 @@ def __init__(self, gitlab_id=None, config_files=None):
                 self.gitlab_id = self._config.get("global", "default")
             except Exception:
                 raise GitlabIDError(
-                    "Impossible to get the gitlab id " "(not specified in config file)"
+                    "Impossible to get the gitlab id (not specified in config file)"
                 )
 
         try:
diff --git a/gitlab/tests/test_base.py b/gitlab/tests/test_base.py
index 47eda6c19..4aa280cda 100644
--- a/gitlab/tests/test_base.py
+++ b/gitlab/tests/test_base.py
@@ -56,9 +56,6 @@ class MGR(base.RESTManager):
         class Parent(object):
             id = 42
 
-        class BrokenParent(object):
-            no_id = 0
-
         mgr = MGR(FakeGitlab(), parent=Parent())
         self.assertEqual(mgr._computed_path, "/tests/42/cases")