> There must be a rule behind this. There are multiple rules behind this. Python normally uses the same extension for shared libraries as the operating system, as the operating system may refuse to load them if it doesn't. So it *can't* use .pyd on Unix, because that might not work (on some implementations of Unix).
It can't use .dll on Windows, because that may (and did) conflict with existing DLLs, hence it uses .pyd. Depending on the system, an extension module may have one of these suffixes: - .so - module.so - .sl - module.sl - .exe - .EXE - module.exe - module.EXE - .pyd - _d.pyd Regards, Martin -- http://mail.python.org/mailman/listinfo/python-list