Django's new URLconfig style allows us to no longer ignore PEP8s error

E128

.travis.yml

@@ -7,7 +7,7 @@ install:
     - pip install -q -r src/requirements.txt
 before_script:
     - cd src
-    - flake8 --ignore=E123,E128,F403,F401,N802,C901,W503 .
+    - flake8 --ignore=E123,F403,F401,N802,C901,W503 .
     - python manage.py check
     - python manage.py validate
 script:

doc/development/style.rst

@@ -8,15 +8,13 @@ Python code
 
   Use `flake8`_ to check for conformance problems. The project includes a setup.cfg
   with a default configuration for flake8 that excludes migrations and other non-relevant
-  code parts. It also silences a few checks, ``N802`` (function names should be lowercase) and
-  ``E128`` (continuation line under-indented for visual indent) as well as increasing the
-  maximum line length to more than 79 characters. **However** you should still name all your
-  functions lowercase [#f1]_ and keep your lines short when possible. [#f2]_
+  code parts. It also silences a few checks, e.g. ``N802`` (function names should be lowercase) 
+  and increases the maximum line length to more than 79 characters. **However** you should 
+  still name all your functions lowercase [#f1]_ and keep your lines short when possible.
 
 * Our build server will reject all code violating other flake8 checks than the following:
   
   * E123: closing bracket does not match indentation of opening bracket’s line
-  * E128: continuation line under-indented for visual indent
   * F403: ``from module import *`` used; unable to detect undefined names
   * F401: module imported but unused
   * N802: function names should be lowercase
@@ -55,5 +53,3 @@ LESS stylesheets
 .. _Django Coding Style: https://docs.djangoproject.com/en/dev/internals/contributing/writing-code/coding-style/
 .. _mixins: http://lesscss.org/features/#mixins-feature
 .. [#f1] But Python's very own ``unittest`` module forces us to use ``setUp`` as a method name...
-.. [#f2] The underindentation-thing is silenced because PEP8-conforming indentation looks very bad
- in the ``urls.py`` modules.

src/pretix/presale/views/__init__.py

@@ -76,7 +76,7 @@ class CartDisplayMixin:
         # Django is unable to join related models in a .values() query
         def keyfunc(pos):
             if answers and ((pos.item.admission and self.request.event.settings.attendee_names_asked == 'True')
-                    or pos.item.questions.all()):
+                            or pos.item.questions.all()):
                 return pos.id, "", "", ""
             return "", pos.item_id, pos.variation_id, pos.price