Fix pycodestyle warnings

.pycodestyle.ini

@@ -5,4 +5,5 @@
 # E501: line too long (checked by PyLint)
 # E711: comparison to None (used to improve test style)
 # E712: comparison to True (used to improve test style)
-ignore = E401,E402,E501,E711,E712
+# E741 ambiguous variable name
+ignore = E401,E402,E501,E711,E712,E741

doorstop/cli/main.py

@@ -313,5 +313,6 @@ def _publish(subs, shared):
                      help="do not include levels on heading and non-heading or non-heading items")
     sub.add_argument('--template', help="template file", default=publisher.HTMLTEMPLATE)
 
+
 if __name__ == '__main__':  # pragma: no cover (manual test)
     main()

doorstop/core/item.py

@@ -15,6 +15,7 @@
 from doorstop.core import editor
 from doorstop import settings
 
+
 log = common.logger(__name__)
 
 
@@ -507,7 +508,7 @@ def unlink(self, value):
         except KeyError:
             log.warning("link to {0} does not exist".format(uid))
 
-    def get_issues(self, skip=None, document_hook=None, item_hook=None): # pylint: disable=unused-argument
+    def get_issues(self, skip=None, document_hook=None, item_hook=None):  # pylint: disable=unused-argument
         """Yield all the item's issues.
 
         :param skip: list of document prefixes to skip

doorstop/core/types.py

@@ -111,7 +111,7 @@ def __init__(self, *values, stamp=None):
             else:
                 self.value = str(value) if values[0] else ''
         elif len(values) == 4:
-            self.value = UID.join_uid(*values) # pylint: disable=no-value-for-parameter
+            self.value = UID.join_uid(*values)  # pylint: disable=no-value-for-parameter
         else:
             raise TypeError("__init__() takes 1 or 4 positional arguments")
         # Split values
@@ -238,6 +238,7 @@ def representer(dumper, data):
         return dumper.represent_scalar('tag:yaml.org,2002:str', data,
                                        style='|' if data else '')
 
+
 yaml.add_representer(_Literal, _Literal.representer)