what alternative of inspect.currentframe() can be for ironpython?

I have a problem. Command inspect.currentframe() return me NoneType from ironpython.

I find here https://stackoverflow.com/a/9939549/2554349 that IronPython cant tell me the line number of code (using inspect.currentframe()).

What alternative of inspect.currentframe() can be for ironpython? I just want to get line number of ironpython code and line number of ironpython def.

Thanks.