Sometimes I need a dummy context manager that does nothing. It can then be used as a stand-in for a more useful, but optional, context manager. For example: ctx_mgr = <meaningfulContextManager> if <condition> else <nullContextManager> with ctx_mgr: ... How do I define such a trivial, empty context manager? Does the Python library offer one off the shelf? How about cases where we want the context to be used with an as clause? with ctx_mgr as resource: <operations on resource> Continue reading...
