Round Robin Tournament Table Generator

round_robin.py

from random import random
from pprint import pprint


def round_robin_gen(teams, away_home=False):
    if len(teams) % 2 != 0:
        teams.append(None)

    matches = []
    for it in range(len(teams) - 1):
        matches.append([[teams[i], teams[i + len(teams)//2]]
                        for i in range(len(teams)//2)])
        teams.insert(1, teams.pop())

    if away_home:
        return matches + [[a[::-1] for a in m] for m in matches]

    return matches


teams = [
    "Atlético-GO",
    "Atlético-MG",
    "Atlético-PR",
    "Avaí",
    "Bahia",
    "Botafogo",
    "Chapecoense",
    "Corinthians",
    "Coritiba",
    "Cruzeiro",
    "Flamengo",
    "Fluminense",
    "Grêmio",
    "Palmeiras",
    "Ponte Preta",
    "Santos",
    "São Paulo",
    "Sport",
    "Vasco",
    "Vitória"
]

pprint(round_robin_gen(sorted(teams, key=lambda x: random()), True))

Implementação interessante meu amigo.