diff options
Diffstat (limited to 'Lib/contextlib.py')
| -rw-r--r-- | Lib/contextlib.py | 11 |
1 files changed, 3 insertions, 8 deletions
diff --git a/Lib/contextlib.py b/Lib/contextlib.py index 1ff8cdf..1a58b50 100644 --- a/Lib/contextlib.py +++ b/Lib/contextlib.py @@ -4,6 +4,7 @@ import sys import _collections_abc from collections import deque from functools import wraps +from types import MethodType __all__ = ["asynccontextmanager", "contextmanager", "closing", "nullcontext", "AbstractContextManager", "AbstractAsyncContextManager", @@ -373,9 +374,7 @@ class _BaseExitStack: @staticmethod def _create_exit_wrapper(cm, cm_exit): - def _exit_wrapper(exc_type, exc, tb): - return cm_exit(cm, exc_type, exc, tb) - return _exit_wrapper + return MethodType(cm_exit, cm) @staticmethod def _create_cb_wrapper(callback, *args, **kwds): @@ -443,7 +442,6 @@ class _BaseExitStack: def _push_cm_exit(self, cm, cm_exit): """Helper to correctly register callbacks to __exit__ methods.""" _exit_wrapper = self._create_exit_wrapper(cm, cm_exit) - _exit_wrapper.__self__ = cm self._push_exit_callback(_exit_wrapper, True) def _push_exit_callback(self, callback, is_sync=True): @@ -535,9 +533,7 @@ class AsyncExitStack(_BaseExitStack, AbstractAsyncContextManager): @staticmethod def _create_async_exit_wrapper(cm, cm_exit): - async def _exit_wrapper(exc_type, exc, tb): - return await cm_exit(cm, exc_type, exc, tb) - return _exit_wrapper + return MethodType(cm_exit, cm) @staticmethod def _create_async_cb_wrapper(callback, *args, **kwds): @@ -596,7 +592,6 @@ class AsyncExitStack(_BaseExitStack, AbstractAsyncContextManager): """Helper to correctly register coroutine function to __aexit__ method.""" _exit_wrapper = self._create_async_exit_wrapper(cm, cm_exit) - _exit_wrapper.__self__ = cm self._push_exit_callback(_exit_wrapper, False) async def __aenter__(self): |