Fix failing flake8

lib/jinjautils.py

@@ -18,6 +18,7 @@ def django_to_jinja(template_name, context, **kw):
     request = context_instance['request']
     return jingo.render(request, jingo.env.from_string(source))
 
+
 actions.render_to_response = django_to_jinja
 options.render_to_response = django_to_jinja
 sites.render_to_response = django_to_jinja

scripts/pipstrap.py

@@ -128,8 +128,8 @@ def main():
     try:
         downloads = [hashed_download(url, temp, digest)
                      for url, digest in PACKAGES]
-        check_output('pip install --no-index --no-deps -U ' +
-                     ' '.join(quote(d) for d in downloads),
+        check_output('pip install --no-index --no-deps -U '
+                     + ' '.join(quote(d) for d in downloads),
                      shell=True)
     except HashError as exc:
         print(exc)

setup.cfg

@@ -1,4 +1,4 @@
 [flake8]
 ignore=E731, W503
 max-line-length=99
-exclude=migrations,mozillians/settings/local.py
+exclude=migrations,mozillians/settings/local.py,docs