refactor: upgrade code to >=python3.7 (pre-commit)

Part-of: <https://dev.funkwhale.audio/funkwhale/funkwhale/-/merge_requests/2189>

api/config/settings/__init__.py

@@ -1 +0,0 @@
-# -*- coding: utf-8 -*-

api/config/settings/common.py

@@ -1,6 +1,3 @@
-# -*- coding: utf-8 -*-
-from __future__ import absolute_import, unicode_literals
-
 import logging.config
 import sys
 from collections import OrderedDict
@@ -170,7 +167,7 @@ else:
 
 FUNKWHALE_PROTOCOL = FUNKWHALE_PROTOCOL.lower()
 FUNKWHALE_HOSTNAME = FUNKWHALE_HOSTNAME.lower()
-FUNKWHALE_URL = "{}://{}".format(FUNKWHALE_PROTOCOL, FUNKWHALE_HOSTNAME)
+FUNKWHALE_URL = f"{FUNKWHALE_PROTOCOL}://{FUNKWHALE_HOSTNAME}"
 FUNKWHALE_SPA_HTML_ROOT = env(
     "FUNKWHALE_SPA_HTML_ROOT", default=FUNKWHALE_URL + "/front/"
 )
@@ -336,7 +333,7 @@ FIXTURE_DIRS = (str(APPS_DIR.path("fixtures")),)
 # EMAIL
 # ------------------------------------------------------------------------------
 DEFAULT_FROM_EMAIL = env(
-    "DEFAULT_FROM_EMAIL", default="Funkwhale <noreply@{}>".format(FUNKWHALE_HOSTNAME)
+    "DEFAULT_FROM_EMAIL", default=f"Funkwhale <noreply@{FUNKWHALE_HOSTNAME}>"
 )
 """
 The name and email address used to send system emails.

api/config/settings/local.py

@@ -1,4 +1,3 @@
-# -*- coding: utf-8 -*-
 """
 Local settings
 
@@ -102,7 +101,7 @@ CSRF_TRUSTED_ORIGINS = [o for o in ALLOWED_HOSTS]
 REST_FRAMEWORK["DEFAULT_SCHEMA_CLASS"] = "funkwhale_api.schema.CustomAutoSchema"
 SPECTACULAR_SETTINGS = {
     "TITLE": "Funkwhale API",
-    "DESCRIPTION": open("Readme.md", "r").read(),
+    "DESCRIPTION": open("Readme.md").read(),
     "VERSION": funkwhale_version,
     "SCHEMA_PATH_PREFIX": "/api/(v[0-9])?",
     "OAUTH_FLOWS": ["authorizationCode"],

api/config/settings/production.py

@@ -1,4 +1,3 @@
-# -*- coding: utf-8 -*-
 """
 Production Configurations
 
@@ -9,7 +8,6 @@ Production Configurations
 
 
 """
-from __future__ import absolute_import, unicode_literals
 
 from .common import *  # noqa