def r1():
    print('pas de retour ?')
    # pas d'instruction return

ret = r1()

print(ret)

def r2(a, b):
    if a > b:
        print('a plus grand que b')
        return a  # interruption
    print('et la suite ?')

r2(3, 1)

def r3(pl):
    return min(pl), max(pl)  # retour multiple possible ?

lnb = [10, 7, 9, 3, 17, 5]
ret1, ret2 = r3(lnb)

print(ret1, ret2)

print(type(r3(lnb)))