How do I create a generator expression in Python?

How do I create a generator expression in Python?

You can create a generator expression by using parentheses. For example, (x*x for x in range(5)) generates squares of numbers from 0 to 4.

Can you explain how it differs from a list comprehension?

Sure! A list comprehension creates a list, while a generator expression returns a generator object, which is more memory efficient.

What are some use cases for generator expressions?

Generator expressions are great for processing large datasets, streaming data, or when you want to iterate over data without storing it all in memory.

Can I convert a generator expression to a list?

Yes, 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].