Resolve flake8 warnings

src/pretix/plugins/banktransfer/__init__.py

@@ -23,7 +23,7 @@ class BankTransferApp(AppConfig):
     def compatibility_warnings(self):
         errs = []
         try:
-            import chardet
+            import chardet  # NOQA
         except ImportError:
             errs.append(_("Install the python package 'chardet' for better CSV import capabilities."))
         return errs

src/pretix/plugins/banktransfer/urls.py

@@ -1,9 +1,9 @@
 from django.conf.urls import url
 
-from .views import *
+from . import views
 
 
 urlpatterns = [
-    url(r'^control/event/(?P<organizer>[^/]+)/(?P<event>[^/]+)/banktransfer/import/', ImportView.as_view(),
+    url(r'^control/event/(?P<organizer>[^/]+)/(?P<event>[^/]+)/banktransfer/import/', views.ImportView.as_view(),
         name='import'),
 ]

src/pretix/plugins/banktransfer/views.py

@@ -3,8 +3,8 @@ from decimal import Decimal
 import json
 import logging
 import re
+
 from django.contrib import messages
-from django.core.urlresolvers import reverse
 from django.shortcuts import redirect, render
 from django.utils.timezone import now
 from django.views.generic import TemplateView

src/pretix/plugins/paypal/__init__.py

@@ -22,7 +22,7 @@ class PaypalApp(AppConfig):
     def compatibility_errors(self):
         errs = []
         try:
-            import paypalrestsdk
+            import paypalrestsdk  # NOQA
         except ImportError:
             errs.append("Python package 'paypalrestsdk' is not installed.")
         return errs

src/pretix/plugins/stripe/__init__.py

@@ -23,7 +23,7 @@ class StripeApp(AppConfig):
     def compatibility_errors(self):
         errs = []
         try:
-            import stripe
+            import stripe  # NOQA
         except ImportError:
             errs.append("Python package 'stripe' is not installed.")
         return errs

src/pretix/plugins/ticketoutputpdf/__init__.py

@@ -22,7 +22,7 @@ class TicketOutputPdfApp(AppConfig):
     def compatibility_errors(self):
         errs = []
         try:
-            import reportlab
+            import reportlab  # NOQA
         except ImportError:
             errs.append("Python package 'reportlab' is not installed.")
         return errs

src/pretix/plugins/ticketoutputpdf/ticketoutput.py

@@ -1,13 +1,9 @@
 from io import BytesIO
 import logging
-from django.contrib import messages
+
 from django.contrib.staticfiles import finders
 from django.http import HttpResponse
-from django.shortcuts import redirect
-from django.utils.timezone import now
 from django.utils.translation import ugettext_lazy as _
-from pretix.base.models import Order
-
 from pretix.base.ticketoutput import BaseTicketOutput
 
 
@@ -15,7 +11,6 @@ logger = logging.getLogger('pretix.plugins.ticketoutputpdf')
 
 
 class PdfTicketOutput(BaseTicketOutput):
-
     identifier = 'pdf'
     verbose_name = _('PDF output')
     download_button_text = _('Download PDF')