如何在IronPython 2.6.1中启用sys._getframe？

I'm trying to use a module that requires sys._getframe(), which, as I understand it, is not enabled by default. I've seen a lot of material that suggests that there is a way to enable _getframe(), but I've yet to find anything that tells me how to do so. What is the proper method for enabling this function in IronPython 2.6.1? Does one even exist? Thanks in advance.I'm trying to use a module that requires sys._g