ooom...@gmail.com wrote:
Well he was not telling you the whole story: RAII works just as well with heap objects using smart pointers (unique_ptr and friends) which are a closer analogy to python object references.
By that definition, *all* resource management in Python is based on RAII[1]. The only difference is that in Python the only way to destroy an object is to remove all references to it, whereas in C++ you have some other options (explicit delete, stack allocation, etc.) However, when people talk about RAII in C++ they're *usually* referring to stack-allocated objects. There are various ways of getting the same effect in Python: (a) Rely on CPython reference counting (b) Use a with-statement (c) Use a try-finally statement Of these, (a) is the closest in spirit to stack-allocated RAII in C++, but it's only guaranteed to work in current CPython. [1] Well, not quite -- you can use low-level OS calls to open files, etc. But the high-level wrappers for files, sockets, and so forth all use RAII. -- Greg -- https://mail.python.org/mailman/listinfo/python-list
