func:pyInit

pyInit(py, fn)

Initialize the python session by calling the given func to do any one-time setup of the python session. If pyInit() has already been called on this session, then the callback is not invoked.

Typically, this func is used in the context of a task since the python session in a task is persistent. This allows to do any one-time pyExec() or pyDefine() when the task is first creatd.