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python Programming Glossary: dict_What happens when you call `if key in dict` http://stackoverflow.com/questions/13001913/what-happens-when-you-call-if-key-in-dict evaluates as equal for any of them the myNewMyClassObj in dict_ returns True. Thus you just need to make sure both __eq__ and.. and __hash__ are fast. To your follow up question yes dict_ stores only one of a set of equivalent MyClass objects as defined..
How to make built-in containers (sets, dicts, lists) thread safe? http://stackoverflow.com/questions/13610654/how-to-make-built-in-containers-sets-dicts-lists-thread-safe 'lock' class LockedClass type def __new__ mcls name bases dict_ # we'll bind these after we add the methods cls None def lockmethodfactory.. lockattr _lockname name for methodname in 'add' 'remove' dict_ methodname lockmethodfactory methodname lockattr cls type.__new__.. methodname lockattr cls type.__new__ mcls name bases dict_ return cls def __call__ self args kwargs #self is a class i.e...
custom dict that allows delete during iteration http://stackoverflow.com/questions/9023078/custom-dict-that-allows-delete-during-iteration element. The following is very efficient remove for k v in dict_.items if condition k v remove.append k continue # do other things.. things you need to do in this loop for k in remove del dict_ k The only overhead here is building the list of keys to remove.. not very popular. The popular dict comprehension approach dict_ k v for k v in dict_ if not condition k v for k v in dict_.items..
http://stackoverflow.com/questions/9486871/pydev-breakpoints-not-working self instance owner if instance is None return self dict_ instance_dict instance if self._supports_population and self.key.. instance if self._supports_population and self.key in dict_ return dict_ self.key else return self.impl.get instance_state.. if self._supports_population and self.key in dict_ return dict_ self.key else return self.impl.get instance_state instance dict_..
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