Diverse Code Cleanups

*Code wurde PEP-8 gerecht formatiert
* Kleine Fehler die der PyCharm Inspector beanstandet wurden korrigiert

events/forms.py

@@ -1,24 +1,31 @@
-'''
+"""
 Created on 03.10.2011
 
 @author: christian
-'''
+"""
 from . import models
 from django import forms
-from django.contrib.auth.models import User
 from django.utils.translation import ugettext as _
+from django.contrib.auth import get_user_model
 from utils.html5.widgets import DateTimeInput
 
+user_query = get_user_model().objects.all()
+
 
 class PhotoUploadForm(forms.Form):
     error_css_class = 'error'
     required_css_class = 'required'
-
-    photographer = forms.ModelChoiceField(User.objects.all(), required=True,)
+    photographer = forms.ModelChoiceField(user_query, required=True,)
     event = forms.ModelChoiceField(models.Event.objects.all(), required=True,)
-    upload = forms.FileField(label=_('Images'), required=True,
-        widget=forms.widgets.ClearableFileInput(attrs={'multiple': 'multiple',
-            'accept': "image/gif,image/png,image/jpeg"})
+    upload = forms.FileField(
+        label=_('Images'),
+        required=True,
+        widget=forms.widgets.ClearableFileInput(
+            attrs={
+                'multiple': 'multiple',
+                'accept': "image/gif,image/png,image/jpeg"
+            }
+        )
     )