fix linter issues

relay/application.py

@@ -2,10 +2,7 @@ from __future__ import annotations
 
 import asyncio
 import multiprocessing
-import os
 import signal
-import subprocess
-import sys
 import time
 import traceback
 import typing
@@ -127,10 +124,15 @@ class Application(web.Application):
 		if self["running"]:
 			return
 
-		if not check_open_port(self.config.listen, self.config.port):
-			return logging.error(f'A server is already running on port {self.config.port}')
+		domain = self.config.domain
+		host = self.config.listen
+		port = self.config.port
 
-		logging.info(f'Starting webserver at {self.config.domain} ({self.config.listen}:{self.config.port})')
+		if not check_open_port(host, port):
+			logging.error(f'A server is already running on {host}:{port}')
+			return
+
+		logging.info(f'Starting webserver at {domain} ({host}:{port})')
 		asyncio.run(self.handle_run())
 
 
@@ -158,7 +160,7 @@ class Application(web.Application):
 		self['cleanup_thread'] = CacheCleanupThread(self)
 		self['cleanup_thread'].start()
 
-		for i in range(self.config.workers):
+		for _ in range(self.config.workers):
 			worker = PushWorker(self['push_queue'])
 			worker.start()
 
@@ -181,7 +183,7 @@ class Application(web.Application):
 
 		await site.stop()
 
-		for worker in self['workers']:
+		for worker in self['workers']: # pylint: disable=not-an-iterable
 			worker.stop()
 
 		self.set_signal_handler(False)

relay/database/connection.py

@@ -18,7 +18,7 @@ from .config import (
 )
 
 from .. import logger as logging
-from ..misc import get_app
+from ..misc import boolean, get_app
 
 if typing.TYPE_CHECKING:
 	from collections.abc import Iterator

relay/manage.py

@@ -5,8 +5,6 @@ import asyncio
 import click
 import os
 import platform
-import subprocess
-import sys
 import typing
 
 from aputils.signer import Signer

relay/misc.py

@@ -88,11 +88,11 @@ def get_resource(path: str) -> Path:
 
 
 class JsonEncoder(json.JSONEncoder):
-	def default(self, obj: Any) -> str:
-		if isinstance(obj, datetime):
-			return obj.isoformat()
+	def default(self, o: Any) -> str:
+		if isinstance(o, datetime):
+			return o.isoformat()
 
-		return JSONEncoder.default(self, obj)
+		return json.JSONEncoder.default(self, o)
 
 
 class Message(ApMessage):

relay/template.py

@@ -5,8 +5,6 @@ import typing
 from hamlish_jinja.extension import HamlishExtension
 from jinja2 import Environment, FileSystemLoader
 
-from pathlib import Path
-
 from .database.config import THEMES
 from .misc import get_resource
 

relay/views/api.py

@@ -4,7 +4,6 @@ import typing
 
 from aiohttp import web
 from argon2.exceptions import VerifyMismatchError
-from datetime import datetime, timezone
 from urllib.parse import urlparse
 
 from .base import View, register_route