Answer Posted / Rais Ahmed Mansoori

In Python:

1. Iterator: An iterator is an object that allows you to iterate over a collection (like a list or a string) one element at a time without storing the entire collection in memory. It provides a next() method for retrieving the next item and can be used with a loop statement, such as for.
2. Generator: A generator is a special type of iterator that generates values on-the-fly instead of storing them in memory. You can create generators using the yield keyword in Python. Unlike iterators, generators can be paused and resumed.
3. List Comprehension: List comprehensions provide a concise way to create lists based on existing lists or other iterables. They consist of square brackets containing an expression that generates each element in the list.

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