> Is it a correct to assume that you can use multiple instances of > python altogether if each is loaded from a separate dll? For instance, > if I write a couple of dll/so libs, and each has python statically > linked in, is it safe to assume that since dlls use their own address > space
DLLs don't use their own address space. All DLLs of a single operating system process use the same address space. Different DLLs do use different portions of that address space. > then each dll would have it's own GIL, and will therefore > coexist safely within the same app? This is correct across all > platforms, yes? No; it rather depends on the way the operating system resolves symbols. On some systems (e.g. many Unix systems), there is only a single global symbol table for the entire process. So when a shared library is loaded, and needs to resolve its symbols (even the ones that it also defines itself), it may end up finding the GIL in a different copy of the Python interpreter, so they all share the GIL (even though there would have been space for multiple GILs). Regards, Martin -- http://mail.python.org/mailman/listinfo/python-list
