Python Natural Sort

def atoi(text):
    return int(text) if text.isdigit() else text

def natural_keys(name):
    text = name['name']
    
    sortKey = [ atoi(c) for c in re.split('(\d+)', text) ]
    try:
        return sortKey[1],sortKey[0],sortKey[3]
    except:
        return sortKey[1],sortKey[0]


races.sort(key=natural_keys)