diff --git a/cloudinit/distros/__init__.py b/cloudinit/distros/__init__.py
index d2cb0a8b..8a98e334 100644
--- a/cloudinit/distros/__init__.py
+++ b/cloudinit/distros/__init__.py
@@ -187,23 +187,23 @@ class Distro(object):
         # inputs. If something goes wrong, we can end up with a system
         # that nobody can login to.
         adduser_opts = {
-                "gecos": '--comment',
-                "homedir": '--home',
-                "primary_group": '--gid',
-                "groups": '--groups',
-                "passwd": '--password',
-                "shell": '--shell',
-                "expiredate": '--expiredate',
-                "inactive": '--inactive',
-                "selinux_user": '--selinux-user',
-                }
+            "gecos": '--comment',
+            "homedir": '--home',
+            "primary_group": '--gid',
+            "groups": '--groups',
+            "passwd": '--password',
+            "shell": '--shell',
+            "expiredate": '--expiredate',
+            "inactive": '--inactive',
+            "selinux_user": '--selinux-user',
+        }
 
         adduser_opts_flags = {
-                "no_user_group": '--no-user-group',
-                "system": '--system',
-                "no_log_init": '--no-log-init',
-                "no_create_home": "-M",
-                }
+            "no_user_group": '--no-user-group',
+            "system": '--system',
+            "no_log_init": '--no-log-init',
+            "no_create_home": "-M",
+        }
 
         # Now check the value and create the command
         for option in kwargs:
@@ -320,11 +320,9 @@ class Distro(object):
                 raise e
         util.ensure_dir(path, 0750)
 
-    def write_sudo_rules(self,
-        user,
-        rules,
-        sudo_file="/etc/sudoers.d/90-cloud-init-users",
-        ):
+    def write_sudo_rules(self, user, rules, sudo_file=None):
+        if not sudo_file:
+            sudo_file = "/etc/sudoers.d/90-cloud-init-users"
 
         content_header = "# user rules for %s" % user
         content = "%s\n%s %s\n\n" % (content_header, user, rules)
diff --git a/cloudinit/sources/DataSourceAltCloud.py b/cloudinit/sources/DataSourceAltCloud.py
index d7e1204f..9812bdcb 100644
--- a/cloudinit/sources/DataSourceAltCloud.py
+++ b/cloudinit/sources/DataSourceAltCloud.py
@@ -47,7 +47,7 @@ META_DATA_NOT_SUPPORTED = {
     'instance-id': 455,
     'local-hostname': 'localhost',
     'placement': {},
-    }
+}
 
 
 def read_user_data_callback(mount_dir):
diff --git a/cloudinit/util.py b/cloudinit/util.py
index 7890a3d6..4f5b15ee 100644
--- a/cloudinit/util.py
+++ b/cloudinit/util.py
@@ -1193,8 +1193,7 @@ def yaml_dumps(obj):
                     indent=4,
                     explicit_start=True,
                     explicit_end=True,
-                    default_flow_style=False,
-                    )
+                    default_flow_style=False)
     return formatted
 
 
diff --git a/tests/unittests/test_runs/test_simple_run.py b/tests/unittests/test_runs/test_simple_run.py
index 22d6cf2c..60ef812a 100644
--- a/tests/unittests/test_runs/test_simple_run.py
+++ b/tests/unittests/test_runs/test_simple_run.py
@@ -37,11 +37,13 @@ class TestSimpleRun(helpers.FilesystemMockingTestCase):
         self.replicateTestRoot('simple_ubuntu', new_root)
         cfg = {
             'datasource_list': ['None'],
-            'write_files': [{
+            'write_files': [
+                {
                     'path': '/etc/blah.ini',
                     'content': 'blah',
                     'permissions': 0755,
-            }],
+                },
+            ],
             'cloud_init_modules': ['write-files'],
         }
         cloud_cfg = util.yaml_dumps(cfg)
diff --git a/tools/hacking.py b/tools/hacking.py
index 11163df3..26a07c53 100755
--- a/tools/hacking.py
+++ b/tools/hacking.py
@@ -66,8 +66,8 @@ def cloud_import_alphabetical(physical_line, line_number, lines):
     # handle import x
     # use .lower since capitalization shouldn't dictate order
     split_line = import_normalize(physical_line.strip()).lower().split()
-    split_previous = import_normalize(lines[line_number - 2]
-            ).strip().lower().split()
+    split_previous = import_normalize(lines[line_number - 2])
+    split_previous = split_previous.strip().lower().split()
     # with or without "as y"
     length = [2, 4]
     if (len(split_line) in length and len(split_previous) in length and