How to iterate through a list of tuples and make pairs out of them?

I have a list like this:

point_list = [(54,8),(55,9),(56,10),(57,11)]

and now I want to make them as pairs like:

[(54,8),(55,9)],[(55,9),(56,10)],[(56,10),(57,11)],[(57,11),(54,8)]

and I have a function which takes in 2 point coordinates and returns the distance between them. How can I pass the individual pairs into the function and append all the distance together?

I did try to get the tuples into a list and now I am stuck on how to move forward from there to pass the pairs as arguments and append the distances.

You could use list comprehension like so:

point_list = [(54,8),(55,9),(56,10),(57,11)]

split_points = [[point_list[i], point_list[(i+1) % len(point_list)]] for i in range(len(point_list))]

print(split_points)

Output:

[[(54, 8), (55, 9)], [(55, 9), (56, 10)], [(56, 10), (57, 11)], [(57, 11), (54, 8)]]

As suggested by @JonSG, the previous method with splicing would work with an extra append:

point_list = [(54,8),(55,9),(56,10),(57,11)]

split_points = [point_list[i:i+2] for i in range(len(point_list)-1)]
split_points.append([point_list[-1], point_list[0]])

print(split_points)

To use the pairs of points, you could do something like this:

def print_coordinates(x1, y1, x2, y2):
    print(x1, x2, y1, y2)

for point1, point2 in split_points:
    print_coordinates(*point1, *point2)