Bump to current manage.py, solve linting issue.

manage.py

@@ -1,22 +1,22 @@
 #!/usr/bin/env python
+"""Django's command-line utility for administrative tasks."""
 import os
 import sys
 
-if __name__ == "__main__":
-    os.environ.setdefault("DJANGO_SETTINGS_MODULE", "webodm.settings")
+
+def main():
+    """Run administrative tasks."""
+    os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'webodm.settings')
     try:
         from django.core.management import execute_from_command_line
-    except ImportError:
-        # The above import may fail for some other reason. Ensure that the
-        # issue is really that Django is missing to avoid masking other
-        # exceptions on Python 2.
-        try:
-            import django
-        except ImportError:
-            raise ImportError(
-                "Couldn't import Django. Are you sure it's installed and "
-                "available on your PYTHONPATH environment variable? Did you "
-                "forget to activate a virtual environment?"
-            )
-        raise
+    except ImportError as exc:
+        raise ImportError(
+            "Couldn't import Django. Are you sure it's installed and "
+            "available on your PYTHONPATH environment variable? Did you "
+            "forget to activate a virtual environment?"
+        ) from exc
     execute_from_command_line(sys.argv)
+
+
+if __name__ == '__main__':
+    main()

worker/tasks.py

@@ -48,7 +48,7 @@ def update_nodes_info():
         if processing_node.hostname == check_hostname and not processing_node.is_online():
             try:
                 socket.gethostbyname(processing_node.hostname)
-            except:
+            except:  #  noqa: E722
                 # Hostname was invalid, try renaming
                 processing_node.hostname = 'webodm-node-odm-1'
                 processing_node.update_node_info()
@@ -158,7 +158,8 @@ def process_task(taskId):
             logger.error(
                 "Uncaught error! This is potentially bad. Please report it to http://github.com/OpenDroneMap/WebODM/issues: {} {}".format(
                     e, traceback.format_exc()))
-            if settings.TESTING: raise e
+            if settings.TESTING:
+                raise e
     finally:
         if cancel_monitor is not None:
             cancel_monitor()