check_if_it_is_a_straight_line.py

from typing import List


class Solution:
    def checkStraightLine(self, coordinates: List[List[int]]) -> bool:
        (x0, y0), (x1, y1) = coordinates[: 2]
        return all((x1 - x0) * (y - y1) == (x - x1) * (y1 - y0) for x, y in coordinates)


print(Solution().checkStraightLine([[1, 2], [2, 3], [3, 4], [4, 5], [ 5, 6], [6, 7]]))
print(Solution().checkStraightLine([[1, 1], [2, 2], [3, 4], [4, 5], [5, 6], [7, 7]]))