In a blog post I read, there was the following statement:
'Damnit. Apparently IronPython doesn’t support .pth files. I’m not sure if I should expect this or not from a “1.0” product, but it’s sure annoying since it seems most libraries use them.'
For me, it is an issue due the fact that many of the libraries I want to use come as Python Eggs, and the easy-install.pth file is required if you want them to work. So I decided to see what was needed to add .pth support to IronPython. In the end it was not too hard as the logic to add the contents of the pth files to the sys.path is included in the CPython site.py. It needed a little modification, but if you add this code to IronPython's site.py, .pth files work.