diff --git a/src/OFS/EtagSupport.py b/src/OFS/EtagSupport.py
index c3e5968478..b2facda348 100644
--- a/src/OFS/EtagSupport.py
+++ b/src/OFS/EtagSupport.py
@@ -20,8 +20,8 @@
 
 
 class EtagBaseInterface(Interface):
-    """Basic Etag support interface, meaning the object supports generating
-    an Etag that can be used by certain HTTP and WebDAV Requests."""
+    """Basic Etag support interface, meaning the object supports generating an
+    Etag that can be used by certain HTTP and WebDAV Requests."""
     def http__etag():
         """Entity tags are used for comparing two or more entities from the
         same requested resource.
diff --git a/src/OFS/Image.py b/src/OFS/Image.py
index 3742867a8c..59a10ee7f1 100644
--- a/src/OFS/Image.py
+++ b/src/OFS/Image.py
@@ -1084,12 +1084,12 @@ def tag(
         the 'scale', 'xscale', and 'yscale' keyword arguments will be
         used to automatically adjust the output height and width values
         of the image tag.
-        
-        Since 'class' is a Python reserved word, it
-        cannot be passed in directly in keyword arguments which is a
-        problem if you are trying to use 'tag()' to include a CSS class.
-        The tag() method will accept a 'css_class' argument that will be
-        converted to 'class' in the output tag to work around this.
+
+        Since 'class' is a Python reserved word, it cannot be passed in
+        directly in keyword arguments which is a problem if you are
+        trying to use 'tag()' to include a CSS class. The tag() method
+        will accept a 'css_class' argument that will be converted to
+        'class' in the output tag to work around this.
         """
         if height is None:
             height = self.height
diff --git a/src/OFS/interfaces.py b/src/OFS/interfaces.py
index 474b4c7ce9..27214dba32 100644
--- a/src/OFS/interfaces.py
+++ b/src/OFS/interfaces.py
@@ -394,8 +394,8 @@ class ILockItem(Interface):
     # XXX:  WAAAA!  What is a ctor doing in the interface?
     def __init__(creator, owner, depth=0, timeout='Infinity',
                  locktype='write', lockscope='exclusive', token=None):
-        """If any of the  following are untrue, a **ValueError** exception
-        will be raised.
+        """If any of the  following are untrue, a **ValueError** exception will
+        be raised.
 
          - **creator** MUST be a Zope user object or string to find a
            valid user object.
diff --git a/src/Shared/DC/Scripts/Signature.py b/src/Shared/DC/Scripts/Signature.py
index 2e64ff2c5c..ed035b875d 100644
--- a/src/Shared/DC/Scripts/Signature.py
+++ b/src/Shared/DC/Scripts/Signature.py
@@ -32,14 +32,14 @@ def __init__(self, varnames=(), argcount=-1):
     def __eq__(self, other):
         if not isinstance(other, FuncCode):
             return False
-        return ((self.co_argcount, self.co_varnames) ==
-                (other.co_argcount, other.co_varnames))
+        return ((self.co_argcount, self.co_varnames)
+                == (other.co_argcount, other.co_varnames))
 
     def __lt__(self, other):
         if not isinstance(other, FuncCode):
             return False
-        return ((self.co_argcount, self.co_varnames) <
-                (other.co_argcount, other.co_varnames))
+        return ((self.co_argcount, self.co_varnames)
+                < (other.co_argcount, other.co_varnames))
 
 
 def _setFuncSignature(self, defaults=None, varnames=(), argcount=-1):
diff --git a/src/webdav/hookable_PUT.py b/src/webdav/hookable_PUT.py
index 2d0236f223..7bc1c02128 100644
--- a/src/webdav/hookable_PUT.py
+++ b/src/webdav/hookable_PUT.py
@@ -8,7 +8,7 @@
 
 
 def PUT_factory(self, name, typ, body):
-    """PUT factory"""
+    """PUT factory."""
     if TEXT_PATTERN.match(typ):
         return OFS.DTMLMethod.DTMLMethod('', __name__=name)
     return None