I hit a bug in the ctypes package on Solaris yesterday. Investigating, I found there is a patch: http://bugs.python.org/issue5289 I applied it and verified that when run as a main program ctypes/util.py now works. Is it too late to get this into 2.7.3? Given the nature of the patch (a new block of code only matched on Solaris, and the fact that find_library is quite broken now on that platform), it's hard to see how things would be worse after applying it. BTW, this will be a requirement for getting PyPy running on Solaris. (That's the context where i encountered it.) Thanks, Skip