backcall: backcall (backwards compatible callback APIs)
backcall:
backcall: backcall is a Python module to write backwards compatible callback
backcall: APIs. That is, you can add parameters to your calls without breaking
backcall: third party callback functions that don't expect those newer
backcall: parameters.
backcall:
backcall:
backcall:
backcall:
backcall: