How do generator expressions work?

Can you explain how generator expressions work in Python?

Sure! Generator expressions are a concise way to create generators in Python. They allow you to generate values on the fly without storing them in memory.

How do they differ from list comprehensions?

The main difference is that list comprehensions create a list and store all values in memory, while generator expressions yield one value at a time, making them more memory efficient.

Can you give me an example of a generator expression?

Of course! Here's a simple example: (x*x for x in range(5)) creates a generator that yields the squares of numbers from 0 to 4.

How can I convert a generator expression to a list?

You can convert it to a list using the list() function. For example, list(x*x for x in range(5)) will give you [0, 1, 4, 9, 16].