contextlib

Utilities for with-statement contexts.  See PEP 343.

AbstractAsyncContextManager: An abstract base class for asynchronous context managers.
AbstractContextManager: An abstract base class for context managers.
aclosing: Async context manager for safely finalizing an asynchronously cleaned-up resource such as an async generator, calling its ``aclose()`` method.
AsyncContextDecorator: A base class or mixin that enables async context managers to work as decorators.
asynccontextmanager: @asynccontextmanager decorator.
AsyncExitStack: Async context manager for dynamic management of a stack of exit callbacks.

chdir: Non thread-safe context manager to change the current working directory.
closing: Context to automatically close something at the end of a block.
ContextDecorator: A base class or mixin that enables context managers to work as decorators.
contextmanager: @contextmanager decorator.

ExitStack: Context manager for dynamic management of a stack of exit callbacks.

redirect_stderr: Context manager for temporarily redirecting stderr to another file.
redirect_stdout: Context manager for temporarily redirecting stdout to another file.