This a python script for generating roundrobin matches for sporting events

roundrobinmatches.py

from itertools import combinations 
from operator import itemgetter

def getroundrobinmatches(participants):
    
    rounds = participants-1 if participants%2 == 0 else participants
    
    data = list(range(1,participants+1))
    
    comb = combinations(data, 2)
    matches = []
    rr = 1
    for x in comb:
        for y in data:
            if y == x[0]:
                matches.append({"participant1":x[0],"participant2":x[1],"round":rr})
                rr += 1
        if rr > rounds:
            rr = 1
    mat = 1
    for rou in range(1,rounds+1):
        for i in range(len(matches)):
            if matches[i]["round"] == rou:
                matches[i]["match"] = mat
                mat += 1
    
    matches = sorted(matches, key=itemgetter('match')) 

    return matches