Raymond Hettinger wrote: > > A dict.get() can be meaningfully used in a loop (because the key can vary). > A set.get() returns the same value over and over again (because there is > no key). There are two ideas of set.get floating about: 1) get an arbitrary object 2) get the object in the set with the same 'value'(hash+eq) as an input arg (the intern case). In this case, there is a 'key', even if it is somewhat abstract rather that being an object. Both could be done with the same method, depending on whether an arg is passed or not. The former is not useful in a loop; the latter could be. If there is no match in case 2, the method could a) raise an exception, b) return None (which by its nature would never sensibly be looked up), or c) return an object specified by 'default=xxx' keyword arg. Terry Jan Reedy
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