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Describe {}.popitem().

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Guido van Rossum 2000-12-12 22:10:31 +00:00
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@ -27,6 +27,13 @@ Core language, builtins, and interpreter
fit in an int. In 1.6 and earlier, a negative long formatted fit in an int. In 1.6 and earlier, a negative long formatted
via %u raised an error if it was too big to fit in an int. via %u raised an error if it was too big to fit in an int.
- Dictionary objects have an odd new method, popitem(). This removes
an arbitrary item from the dictionary and returns it (in the form of
a (key, value) pair). This can be useful for algorithms that use a
dictionary as a bag of "to do" items and repeatedly need to pick one
item. Such algorithms normally end up running in quadratic time;
using popitem() they can usually be made to run in linear time.
Windows changes Windows changes
- select module: By default under Windows, a select() call - select module: By default under Windows, a select() call