diff --git a/letsencrypt-apache/letsencrypt_apache/configurator.py b/letsencrypt-apache/letsencrypt_apache/configurator.py
index c4ec3c2e7..549a19188 100644
--- a/letsencrypt-apache/letsencrypt_apache/configurator.py
+++ b/letsencrypt-apache/letsencrypt_apache/configurator.py
@@ -104,7 +104,7 @@ class ApacheConfigurator(augeas_configurator.AugeasConfigurator):
             default=constants.os_constant("challenge_location"),
             help="Directory path for challenge configuration.")
         add("handle-modules", default=constants.os_constant("handle_mods"),
-            help="Let installer handle enabling required modules for you."+
+            help="Let installer handle enabling required modules for you." +
                  "(Only Ubuntu/Debian currently)")
         le_util.add_deprecated_argument(add, "init-script", 1)
 
diff --git a/letsencrypt-apache/letsencrypt_apache/constants.py b/letsencrypt-apache/letsencrypt_apache/constants.py
index 70d0beabb..773ceb266 100644
--- a/letsencrypt-apache/letsencrypt_apache/constants.py
+++ b/letsencrypt-apache/letsencrypt_apache/constants.py
@@ -60,6 +60,7 @@ UIR_ARGS = ["always", "set", "Content-Security-Policy",
 HEADER_ARGS = {"Strict-Transport-Security": HSTS_ARGS,
         "Upgrade-Insecure-Requests": UIR_ARGS}
 
+
 def os_constant(key):
     """Get a constant value for operating system
     :param key: name of cli constant
diff --git a/letsencrypt-apache/letsencrypt_apache/parser.py b/letsencrypt-apache/letsencrypt_apache/parser.py
index abdf6e449..4ab2b82a0 100644
--- a/letsencrypt-apache/letsencrypt_apache/parser.py
+++ b/letsencrypt-apache/letsencrypt_apache/parser.py
@@ -64,7 +64,6 @@ class ApacheParser(object):
         # Must also attempt to parse virtual host root
         self._parse_file(self.vhostroot + "/*.conf")
 
-
     def init_modules(self):
         """Iterates on the configuration until no new modules are loaded.
 
diff --git a/letsencrypt-apache/letsencrypt_apache/tests/constants_test.py b/letsencrypt-apache/letsencrypt_apache/tests/constants_test.py
index 478debb59..63eb5c783 100644
--- a/letsencrypt-apache/letsencrypt_apache/tests/constants_test.py
+++ b/letsencrypt-apache/letsencrypt_apache/tests/constants_test.py
@@ -1,3 +1,5 @@
+"""Test for letsencrypt_apache.configurator."""
+
 import mock
 import unittest
 
@@ -8,15 +10,15 @@ class ConstantsTest(unittest.TestCase):
 
     @mock.patch("letsencrypt.le_util.get_os_info")
     def test_get_debian_value(self, os_info):
-        os_info.return_value = ('Debian','','')
+        os_info.return_value = ('Debian', '', '')
         self.assertEqual(constants.os_constant("ctl"), "apache2ctl")
 
     @mock.patch("letsencrypt.le_util.get_os_info")
     def test_get_centos_value(self, os_info):
-        os_info.return_value = ('CentOS Linux','','')
+        os_info.return_value = ('CentOS Linux', '', '')
         self.assertEqual(constants.os_constant("ctl"), "apachectl")
 
     @mock.patch("letsencrypt.le_util.get_os_info")
     def test_get_default_value(self, os_info):
-        os_info.return_value = ('Nonexistent Linux','','')
+        os_info.return_value = ('Nonexistent Linux', '', '')
         self.assertEqual(constants.os_constant("ctl"), "apache2ctl")