How to generate random pairs of numbers in Python, including pairs with one entry being the same and excluding pairs with both entries being the same?

Question

I\'m using Python and was using numpy for this. I want to generate pairs of random numbers. I want to exclude repetitive outcomes of pairs with both entries being the s

Answer 1

@James Miles answer is great, but just to avoid endless loops when accidentally asking for too many arguments I suggest the following (it also removes some repetitions):

def gencoordinates(m, n):
    seen = set()
    x, y = randint(m, n), randint(m, n)
    while len(seen) < (n + 1 - m)**2:
        while (x, y) in seen:
            x, y = randint(m, n), randint(m, n)
        seen.add((x, y))
        yield (x, y)
    return

Note that wrong range of values will still propagate down.