List vs Generator in Python | Dataford Interview Questions

Explain the difference between a list and a generator in Python and why it matters for large datasets.

Implement square_values(values) to return a list containing the square of each integer, while using lazy generator iteration internally. The function must preserve input order and may not modify the input list.

Input: a list of integers. Output: a list of squared integers.

Examples: square_values([2, -3]) returns [4, 9]; square_values([]) returns [].

Constraints: 0 <= len(values) <= 100, and each value is between -10^6 and 10^6.

Constraints

0 <= len(values) <= 100
-10^6 <= values[i] <= 10^6
The input list must not be modified
The output must be a new list

Function Signature

def square_values(values):

Your question is List vs Generator in Python. Start with the requirements in the Question tab.

Run and submit as often as you like. When you're ready, talk me through your approach or go straight to the code.

Problem