Merge pull request #83 from praw-dev/fixmaster

Resolve master build issues

.flake8

@@ -0,0 +1,2 @@
+[flake8]
+ignore = E203 E501 W503 W504

.travis.yml

@@ -4,7 +4,7 @@ install: pip install coveralls
 jobs:
   include:
     - install: pip install black flake8 pydocstyle
-      python: 3.7
+      python: 3.8
       script:
         - black --check --verbose *.py examples prawcore tests
         - flake8
@@ -15,6 +15,7 @@ python:
   - 3.5
   - 3.6
   - 3.7
+  - 3.8
 script:
   - coverage run --source=prawcore setup.py test
   - coveralls

prawcore/sessions.py

@@ -74,7 +74,7 @@ def consume_available_retry(self):
         return type(self)(self._retries - 1)
 
     def should_retry_on_failure(self):
-        """``True`` if and only if the strategy will allow another retry."""
+        """Return ``True`` if and only if the strategy will allow another retry."""
         return self._retries > 1