Create Context Manager

syntactic sugar.

Recipes

from contextlib import contextmanager

@contextmanager
def managed_resource(*args, **kwds):
    # Code to acquire resource, e.g.:
    resource = acquire_resource(*args, **kwds)
    try:
        yield resource
    finally:
        # Code to release resource, e.g.:
        release_resource(resource)

simplified:

class managed_resource:
    def __init__(self, *args, **kwds):
        self.resource = None
        self.args = args
        self.kwds = kwds

    def __enter__(self):
        self.resource = acquire_resource(*self.args, **self.kwds)

    def __exit__(self, exc_type, exc_value, traceback) -> bool:
        release_resource(self.resource)
        return False

Usage

with managed_resource(timeout=3600) as resource:
    pass

References