Python · Generators & Iterators

What does this print? def sub(): yield 1 return 99 def main(): result = yield from sub() print('sub returned', result) print(list(main()))

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More in Generators & Iterators

What does this print? ``` gen = (x*x for x in range(3)) print(sum(gen)) print(sum(gen)) ```

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What is the key difference in behavior between [x for x in big] and (x for x in big)?

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Which methods must an iterator implement, and what ends the iteration?

An iterator's __next__ has run out of items. How does it signal "no more"?

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