Unexpected Infinite Loop While Using List Comprehension and Generator in Python 3.11
I've been banging my head against this for hours. I'm encountering an unexpected infinite loop when trying to generate a list of even numbers from a range using a generator expression combined with a list comprehension in Python 3.11. The code I wrote looks like this: ```python def generate_evens(n): return [x for x in (x for x in range(n)) if x % 2 == 0] result = generate_evens(10) print(result) ``` I expected this code to return the list `[0, 2, 4, 6, 8]`, but instead, it seems to run indefinitely without producing any output. I've verified that the inner generator is functioning correctly by testing it separately: ```python for val in (x for x in range(10)): print(val) ``` This works fine and prints the numbers from 0 to 9. I also tried simplifying the comprehension like this: ```python def generate_evens_simple(n): return [x for x in range(n) if x % 2 == 0] ``` This returns the expected result without issues. I'm confused why combining a generator with a list comprehension causes it to hang. Is there a mistake in how the generator is being used, or is there an inherent issue with mixing these constructs? Any insights would be greatly appreciated! I'm working on a application that needs to handle this. I'd really appreciate any guidance on this.