#0148

Take First N Items From an Iterable

MediumPython25 min20 XP

Problem

Given any iterable and n, return a list containing at most the first n values.

Why This Matters

Streaming pipelines and generators should not be converted into full lists when you only need a small prefix.

Function Signature

def take(iterable, n):

Examples

Example 1

Input(x*x for x in range(10)), n = 4

Output[0, 1, 4, 9]

Only four generated values are consumed.

Constraints

Return the exact requested value.
Handle empty or small inputs when the prompt allows them.
Keep the code readable and deterministic.

CodePython

def take(iterable, n):
    """
    Input example: (x*x for x in range(10)), n = 4
    Return: [0, 1, 4, 9]
    Return the value from the function so the tests can compare it. Do not print unless the prompt asks.
    """
    # write your code here
    return []

def take(iterable, n):
    """
    Input example: (x*x for x in range(10)), n = 4
    Return: [0, 1, 4, 9]
    Return the value from the function so the tests can compare it. Do not print unless the prompt asks.
    """
    # write your code here
    return []

Visible browser tests run here when available.

Testcases1 visible / 3 hidden categories

Core example

Input(x*x for x in range(10)), n = 4

Expected[0, 1, 4, 9]

Only four generated values are consumed.

Hidden Test Categories

empty or smallest inputduplicates or repeated valueslarger realistic input