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[Python-Dev] xml.parsers.expat no userdata in callback functions

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> Kristian Benoit wrote:> > This means one cant parse multiple files at the same time using the same> > handlers. You cant pass the context current context to the handler, you must> > base your code on global variables which is not so nice.>"Martin v. Löwis" replied:> This is not true. You can create multiple parsers, and then can make the> callback functions bound methods, using self to store parse-specific> data. There is no need to have extra callback data.What he said. Kristian's complaint is probably a common misconceptionabout Python -- not too many languages have unified the concepts of"bound methods" and "callables" so completely as Python. Everycallable is in a sense a closure (or can be). Nested functions areother examples.-- --Guido van Rossum (home page:http://www.python.org/~guido/)

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