mitogen

A zero byte Python script can grow up to be anything in the absence of constraints, the infrastructure label makes it simple to say no when thinking about including a feature, and to ease selecting one implementation strategy over another. The nerd within would love to implement subtree detachment ( https://github.com/dw/mitogen/blob/master/docs/images/discon... ): this is basically the beginnings of an Internet worm, but it has zero practical use for infrastructure, so it's complexity I'd prefer to avoid. Commercially, the killer feature for me in this library will be its Python 2.4 support. I need that for consulting work, but that constraint stands in direct contrast to a general purpose framework for use in application development. Developers want shiny new Python 3 and suchlike, commercially I've never needed that and will be unlikel