In this Python Programming Tutorial for Beginners video I am going to show you How to create and use Generators in Python. Generators are simple way defining iterators in python.Generators appears similar to functions, but they keep the state of their variables between calls, and they use yield instead of return. Also calling them again resumes execution after the yield statement.
Python does not allow ‘yield’ inside a ‘try’ block with a ‘finally’ clause. when using iterators, in order to create our own Iterator class we need to implement __iter__() and __next__() methods in your class. But with Python Generators we need to implement __iter__() and __next__() methods. In addition The generators raise the StopIteration exception automatically. So generatora are much easier to implement then iterators.
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