fix session

main.py

@@ -22,7 +22,7 @@ async def inline_query(update: Update, context: ContextTypes.DEFAULT_TYPE) -> No
     if query == "":
         return
     common.logger.info(f"Query: {query}")
-    async with TGTweet(context.bot_data['client'], query) as tweet:
+    async with TGTweet(query) as tweet:
         result = list(tweet.inline_query_generator)
         await update.inline_query.answer(result)
 
@@ -32,7 +32,7 @@ async def reply_media(update: Update, context: ContextTypes.DEFAULT_TYPE) -> Non
     # url = update.message.text.split(" ")[0]
     url = update.message.text
     common.logger.info(f"Receiving url: {url}")
-    async with TGTweet(context.bot_data['client'], url) as tweet:
+    async with TGTweet(url) as tweet:
         media = list(tweet.pm_media_generator)
         message_sent = await update.effective_message.reply_media_group(
             media,
@@ -92,7 +92,7 @@ async def post_init(application: Application) -> None:
     DESCRIPTION = "A bot to fetch tweets from Twitter."
     await application.bot.set_my_description(DESCRIPTION)
     await application.bot.set_my_short_description(DESCRIPTION)
-    application.bot_data['client'] = ClientSession()
+    TGTweet.set_session(ClientSession())
 
 
 async def post_stop(application: Application) -> None:
@@ -100,7 +100,7 @@ async def post_stop(application: Application) -> None:
 
 
 async def post_shutdown(application: Application) -> None:
-    await application.bot_data['client'].close()
+    await TGTweet.close_session()
 
 
 def main():

tweet.py

@@ -109,8 +109,9 @@ class Tweet:
 
 
 class TGTweet(Tweet):
-    def __init__(self, session: ClientSession, url: str):
-        self._session: ClientSession = session
+    _session: ClientSession
+
+    def __init__(self, url: str):
         self._url: str = url
         self._api_param: tuple[str] = self._tweet_id
         assert self._api_param
@@ -123,6 +124,14 @@ class TGTweet(Tweet):
     async def __aexit__(self, exc_type, exc_val, exc_tb):
         pass
 
+    @classmethod
+    def set_session(cls, session: ClientSession) -> None:
+        cls._session = session
+
+    @classmethod
+    async def close_session(cls) -> None:
+        await cls._session.close()
+
     async def _fetch_tweet(self, api_param: tuple[str]) -> dict:
         return await fetch_json(self._session, vx_api_url.format(*api_param))