Erik Bray <erik.m.b...@gmail.com> added the comment:
> What makes functions different from variables? Aren't they essentially just > pointers? You're on the right track by noting a difference between functions and data variables. I can tell you off the bat that when it comes to data imported from DLLs, non-functions are handled (somewhat by necessity) quite differently from functions. That said, since you asked, I struggled to articulate *exactly* why this exact problem occurs on Cygwin (actually on Windows in general), so I thought about it for a while and wrote up an explanation in a blog post: http://iguananaut.net/blog/programming/windows-data-import.html The TL;DR though is that limitations of how the runtime dynamic loader on Windows works are such that it's impossible to initialize static data with a pointer to some data in an external library. The compiler knows this and prevents you from doing it. The workaround is simple enough for most cases: Complete the initialization at runtime. In the case of PyType_Type objects, PyType_Ready can set their base type at runtime just fine. ---------- _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue34211> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
