From 02683b8c3736b87f7af6ab86d4e1f56932309b0e Mon Sep 17 00:00:00 2001
From: LORES <61621244+loRes228@users.noreply.github.com>
Date: Wed, 2 Apr 2025 23:26:43 +0300
Subject: [PATCH] misc: simplify running non-async callback using
 asyncio.to_thread (#1661)

* refactor: simplify running non-async callback using asyncio.to_thread

* add changes
---
 CHANGES/1661.misc.rst               | 1 +
 aiogram/dispatcher/event/handler.py | 6 +-----
 2 files changed, 2 insertions(+), 5 deletions(-)
 create mode 100644 CHANGES/1661.misc.rst

diff --git a/CHANGES/1661.misc.rst b/CHANGES/1661.misc.rst
new file mode 100644
index 00000000..b20cbc82
--- /dev/null
+++ b/CHANGES/1661.misc.rst
@@ -0,0 +1 @@
+Replaced ```loop.run_in_executor``` with ```asyncio.to_thread``` for improved readability and consistency.
diff --git a/aiogram/dispatcher/event/handler.py b/aiogram/dispatcher/event/handler.py
index 8c283dd2..b95cc962 100644
--- a/aiogram/dispatcher/event/handler.py
+++ b/aiogram/dispatcher/event/handler.py
@@ -41,11 +41,7 @@ class CallableObject:
         wrapped = partial(self.callback, *args, **self._prepare_kwargs(kwargs))
         if self.awaitable:
             return await wrapped()
-
-        loop = asyncio.get_event_loop()
-        context = contextvars.copy_context()
-        wrapped = partial(context.run, wrapped)
-        return await loop.run_in_executor(None, wrapped)
+        return await asyncio.to_thread(wrapped)
 
 
 @dataclass