Fix issues with Python 3.10 (#766)

pyrogram/types/messages_and_media/sticker.py

@@ -18,8 +18,6 @@
 
 from typing import List
 
-from async_lru import alru_cache
-
 import pyrogram
 from pyrogram import raw
 from pyrogram import types
@@ -105,18 +103,35 @@ class Sticker(Object):
         self.thumbs = thumbs
         # self.mask_position = mask_position
 
+    cache = {}
+
     @staticmethod
-    @alru_cache(maxsize=256)
     async def _get_sticker_set_name(send, input_sticker_set_id):
         try:
-            return (await send(
+            set_id = input_sticker_set_id[0]
+            set_access_hash = input_sticker_set_id[1]
+
+            name = Sticker.cache.get((set_id, set_access_hash), None)
+
+            if name is not None:
+                return name
+
+            name = (await send(
                 raw.functions.messages.GetStickerSet(
                     stickerset=raw.types.InputStickerSetID(
-                        id=input_sticker_set_id[0],
-                        access_hash=input_sticker_set_id[1]
+                        id=set_id,
+                        access_hash=set_access_hash
                     )
                 )
             )).set.short_name
+
+            Sticker.cache[(set_id, set_access_hash)] = name
+
+            if len(Sticker.cache) > 250:
+                for i in range(50):
+                    Sticker.cache.pop(next(iter(Sticker.cache)))
+
+            return name
         except StickersetInvalid:
             return None