minor fixes

src/parsers/Telegram/telegram_media_downloader/telegram_parser.py

@@ -1,6 +1,4 @@
-import asyncio
 import os
-from asyncio import gather
 from urllib.parse import urlparse
 
 from loguru import logger
@@ -12,6 +10,45 @@ from src.parsers.Telegram.telegram_media_downloader.media_downloader import _che
     worker
 from src.parsers.base_parser import BaseParser
 
+import asyncio
+import threading
+from typing import Awaitable, TypeVar
+T = TypeVar("T")
+
+
+def _start_background_loop(loop):
+    asyncio.set_event_loop(loop)
+    loop.run_forever()
+
+
+_LOOP = asyncio.new_event_loop()
+_LOOP_THREAD = threading.Thread(
+    target=_start_background_loop, args=(_LOOP,), daemon=True
+)
+_LOOP_THREAD.start()
+
+
+def asyncio_run(coro: Awaitable[T], timeout=30) -> T:
+    """
+    Runs the coroutine in an event loop running on a background thread,
+    and blocks the current thread until it returns a result.
+    This plays well with gevent, since it can yield on the Future result call.
+
+    :param coro: A coroutine, typically an async method
+    :param timeout: How many seconds we should wait for a result before raising an error
+    """
+    return asyncio.run_coroutine_threadsafe(coro, _LOOP).result(timeout=timeout)
+
+
+def asyncio_gather(*futures, return_exceptions=False) -> list:
+    """
+    A version of asyncio.gather that runs on the internal event loop
+    """
+    async def gather():
+        return await asyncio.gather(*futures, return_exceptions=return_exceptions)
+
+    return asyncio.run_coroutine_threadsafe(gather(), loop=_LOOP).result()
+
 
 class TelegramParser(BaseParser):
     def video_download(self, client: Client = None):
@@ -31,9 +68,8 @@ class TelegramParser(BaseParser):
                   mode="w+", encoding="utf-8") as f:
             YAML().dump(config, f)
         if _check_config():
-            asyncio.run_coroutine_threadsafe(download_all_chat(client), app.loop)
-            asyncio.run_coroutine_threadsafe(worker(client), app.loop)
-            app.loop.run_forever()
+            a = asyncio_run(download_all_chat(client))
+            b = asyncio_run(worker(client))
             client.stop()
             app.is_running = False
             logger.info("Stopped!")