What are the performance benefits of using generator expressions in Python?

What are the performance benefits of using generator expressions in Python?

Generator expressions are more memory efficient than list comprehensions because they yield items one at a time.

Can you explain how they differ from list comprehensions?

Sure! List comprehensions create the entire list in memory, while generator expressions generate items on-the-fly.

Are there any scenarios where I shouldn't use generator expressions?

Yes, if you need to access elements multiple times or require random access, a list might be more suitable.

How do I create a generator expression?

You can create one using parentheses, like this: (x*x for x in range(10)). It generates squares of numbers 0-9.