drop cancellederror

telegram/ext/_application.py

@@ -1027,10 +1027,6 @@ async def __create_task_callback(
             if isinstance(coroutine, Generator):
                 return await asyncio.create_task(coroutine)
             return await coroutine
-        except asyncio.CancelledError as cancel:
-            # TODO: in py3.8+, CancelledError is a subclass of BaseException, so we can drop this
-            #  clause when we drop py3.7
-            raise cancel
         except Exception as exception:
             if isinstance(exception, ApplicationHandlerStop):
                 warn(

telegram/ext/_updater.py

@@ -326,10 +326,6 @@ async def polling_action_cb() -> bool:
                     pool_timeout=pool_timeout,
                     allowed_updates=allowed_updates,
                 )
-            except asyncio.CancelledError as exc:
-                # TODO: in py3.8+, CancelledError is a subclass of BaseException, so we can drop
-                #  this clause when we drop py3.7
-                raise exc
             except TelegramError as exc:
                 # TelegramErrors should be processed by the network retry loop
                 raise exc

telegram/request/_baserequest.py

@@ -18,7 +18,6 @@
 # along with this program.  If not, see [http://www.gnu.org/licenses/].
 """This module contains an abstract class to make POST and GET requests."""
 import abc
-import asyncio
 import json
 from http import HTTPStatus
 from types import TracebackType
@@ -283,10 +282,6 @@ async def _request_wrapper(
                 connect_timeout=connect_timeout,
                 pool_timeout=pool_timeout,
             )
-        except asyncio.CancelledError as exc:
-            # TODO: in py3.8+, CancelledError is a subclass of BaseException, so we can drop this
-            #  clause when we drop py3.7
-            raise exc
         except TelegramError as exc:
             raise exc
         except Exception as exc: