backports_abc.py 文件源码

def patch(patch_inspect=True):
    """
    Main entry point for patching the ``collections.abc`` and ``inspect``
    standard library modules.
    """
    PATCHED['collections.abc.Generator'] = _collections_abc.Generator = Generator
    PATCHED['collections.abc.Coroutine'] = _collections_abc.Coroutine = Coroutine
    PATCHED['collections.abc.Awaitable'] = _collections_abc.Awaitable = Awaitable

    if patch_inspect:
        import inspect
        PATCHED['inspect.isawaitable'] = inspect.isawaitable = isawaitable