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Alex Rivera
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What's the difference between UserDict , dict and ABC and which one is recommended? The docs seem to deprecate UserDict ? Also it seems UserDict's update() would use my setitem method whereas dict doesn't? Which methods are really essential to override given I want custom setitem and getitem function? With ABC s I'd have to implement absolutely all methods since it provides no default implementation? I want to make a dict that does two things: intern() all keys and values store some of the values in an SQLite database So which of UserDict , dict and ABC would best allow me to do this?
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