middle_two

Given a string of even length, return a string made of the middle two chars, so the string “string” yields “ri”. The string length will be at least 2.

middle_two("string") -> "ri"
middle_two("code") -> "od"
middle_two("Practice") -> "ct"

This exercise was taken from codingbat.com and has been adapted for the Python language. There are many great programming exercises there, but the majority are created for Java.

Starter Code

def middle_two(string: str) -> str:
    pass


result = middle_two('string')
print(result)

Tests

from main import middle_two


def test_middle_two_1():
    assert middle_two('string') == 'ri'


def test_middle_two_2():
    assert middle_two('code') == 'od'


def test_middle_two_3():
    assert middle_two('Practice') == 'ct'


def test_middle_two_4():
    assert middle_two('ab') == 'ab'


def test_middle_two_5():
    assert middle_two('0123456789') == '45'