I wrote a pretty significant process wrapper in python at $PREVIOUS_JOB. The problem I have with these loose wrappers around subprocess is that they're, imho, solving the wrong problem. Or, maybe better put, not solving _enough_ of the problem.<p>Imagine writing a wrapper for "grep". It may work in one environment, but if you need portability, you're going to quickly realize that there are nuances in implementation and the actual calling interface. Now you're handling branching logic in your application code based on platform, version, etc.<p>Interfacing with a command line tool shouldn't be thought of much different than a remote HTTP/ReST API talking text/plain instead of application/json. You're looking for your "client wrapper" to handle argument validation, parsing, versioning, etc.