improve: introduce isort for linting Python imports (#1983)

api/extensions/ext_celery.py

@@ -1,6 +1,6 @@
 from datetime import timedelta
 
-from celery import Task, Celery
+from celery import Celery, Task
 from flask import Flask
 
 

api/extensions/ext_hosting_provider.py

@@ -1,6 +1,5 @@
-from flask import Flask
-
 from core.hosting_configuration import HostingConfiguration
+from flask import Flask
 
 hosting_configuration = HostingConfiguration()
 

api/extensions/ext_redis.py

@@ -1,5 +1,5 @@
 import redis
-from redis.connection import SSLConnection, Connection
+from redis.connection import Connection, SSLConnection
 
 redis_client = redis.Redis()
 

api/extensions/ext_storage.py

@@ -1,7 +1,7 @@
 import os
 import shutil
 from contextlib import closing
-from typing import Union, Generator
+from typing import Generator, Union
 
 import boto3
 from botocore.exceptions import ClientError