Hi all I'm writing my first C extension for Python here, and all is going well. However, I was reading [1], and the author there is advocating Py_INCREF 'ing *every* borrowed reference.
Now, I get that if I do something to mutate and perhaps invalidate the PyObject that was borrowed I can get unpredictable results - eg, by getting a borrowed reference to a value from a dictionary, clearing the dictionary and then expecting to use the borrowed reference. However, if my code does not do things like that, is there a chance of a borrowed reference being invalidated that is not related to my use of the thing I borrowed it from? Is this cargo cult advice (sometimes the gods need this structure, and so to please the gods it must be everywhere), sensible belt and braces or needless overkill? Cheers Tom [1] http://pythonextensionpatterns.readthedocs.io/en/latest/refcount.html#borrowed-references -- https://mail.python.org/mailman/listinfo/python-list
