What are the differences between list comprehensions and iterators in Python?

What are the differences between list comprehensions and iterators in Python?

List comprehensions provide a concise way to create lists, while iterators allow you to iterate over data without storing it all in memory.

Can you give me an example of a list comprehension?

Sure! A list comprehension to create a list of squares from 0 to 9 would look like this: [x**2 for x in range(10)].

How about an example of using an iterator?

An iterator example would be using iter() and next(): my_iter = iter([1, 2, 3]) and then next(my_iter) gives you 1.

When should I use one over the other?

Use list comprehensions for simplicity and readability when you need a list. Use iterators for large datasets to save memory.