fix: miscellaneous small Python 3 build-time fixes

Author: scanny

.travis.yml

@@ -1,7 +1,7 @@
 language: python
 python:
+  - "3.8"
   - "3.6"
-  - "3.5"
   - "2.7"
 # command to install dependencies, e.g. pip install -r requirements.txt --use-mirrors
 install: pip install -r requirements.txt

docs/api/style.rst

@@ -6,7 +6,7 @@ Style-related objects
 
 A style is used to collect a set of formatting properties under a single name
 and apply those properties to a content object all at once. This promotes
-formatting consistency thoroughout a document and across related documents
+formatting consistency throughout a document and across related documents
 and allows formatting changes to be made globally by changing the definition
 in the appropriate style.
 

docx/compat.py

@@ -34,6 +34,6 @@ def is_string(obj):
 
     def is_string(obj):
         """Return True if *obj* is a string, False otherwise."""
-        return isinstance(obj, basestring)
+        return isinstance(obj, basestring)  # noqa
 
-    Unicode = unicode
+    Unicode = unicode  # noqa

docx/opc/compat.py

@@ -4,9 +4,7 @@
 Provides Python 2/3 compatibility objects
 """
 
-from __future__ import (
-    absolute_import, division, print_function, unicode_literals
-)
+from __future__ import absolute_import, division, print_function, unicode_literals
 
 import sys
 
@@ -29,6 +27,7 @@ def is_string(obj):
         """
         return isinstance(obj, str)
 
+
 # ===========================================================================
 # Python 2 versions
 # ===========================================================================
@@ -47,4 +46,4 @@ def is_string(obj):
         """
         Return True if *obj* is a string, False otherwise.
         """
-        return isinstance(obj, basestring)
+        return isinstance(obj, basestring)  # noqa

tox.ini

@@ -12,7 +12,7 @@ python_classes = Test Describe
 python_functions = it_ they_ and_it_ but_it_
 
 [tox]
-envlist = py26, py27, py34, py35, py36
+envlist = py26, py27, py34, py35, py36, py38
 
 [testenv]
 deps =