Fix PEP8 warnings.

Signed-off-by: Roberto Rosario <roberto.rosario.gonzalez@gmail.com>

mayan/apps/common/apps.py

@@ -29,7 +29,7 @@ from .links import (
 
 from .literals import DELETE_STALE_UPLOADS_INTERVAL
 from .menus import (
-    menu_about, menu_main, menu_secondary, menu_tools, menu_user
+    menu_about, menu_main, menu_secondary, menu_user
 )
 from .licenses import *  # NOQA
 from .queues import *  # NOQA - Force queues registration

mayan/apps/common/compressed_files.py

@@ -6,7 +6,7 @@ import zipfile
 try:
     import zlib  # NOQA
     COMPRESSION = zipfile.ZIP_DEFLATED
-except:
+except ImportError:
     COMPRESSION = zipfile.ZIP_STORED
 
 from django.core.files.uploadedfile import SimpleUploadedFile

mayan/apps/common/generics.py

@@ -127,7 +127,7 @@ class AssignRemoveView(ExtraContextMixin, ViewPermissionCheckMixin, ObjectPermis
 
                     try:
                         action_function(selection_obj)
-                    except:
+                    except Exception:
                         if settings.DEBUG:
                             raise
                         else:

mayan/apps/common/javascript.py

@@ -5,7 +5,6 @@ import hashlib
 import json
 import os
 import shutil
-import sys
 import tarfile
 
 from furl import furl

mayan/apps/common/templatetags/common_tags.py

@@ -4,7 +4,6 @@ from json import dumps
 
 import sh
 
-from django.conf import settings
 from django.template import Context, Library
 from django.template.loader import get_template
 from django.utils.encoding import force_text

mayan/apps/common/views.py

@@ -5,13 +5,13 @@ from json import dumps
 from django.conf import settings
 from django.contrib import messages
 from django.contrib.contenttypes.models import ContentType
-from django.http import Http404, HttpResponseRedirect
+from django.http import HttpResponseRedirect
 from django.shortcuts import get_object_or_404, resolve_url
 from django.template import RequestContext
-from django.urls import reverse, reverse_lazy
+from django.urls import reverse_lazy
 from django.utils import timezone, translation
 from django.utils.http import urlencode
-from django.utils.translation import ugettext_lazy as _, ugettext
+from django.utils.translation import ugettext_lazy as _
 from django.views.generic import RedirectView, TemplateView
 
 from acls.models import AccessControlList