python 3是否可以从内部循环的外部引用变量(没有全局变量)?

def test():
    i = 0
    for e in range(5):
        i=+1
        print('i in for loop {}'.format(i))
        while True:
            print ('i in while {}'.format(i))
            break
test()

尝试了字典:

def test():
    ns = {}
    ns['i'] = 0
    for e in range(5):
        ns['i']=+1
        print('i in for loop {}'.format(ns['i']))
        while True:
            print ('i in while {}'.format(ns['i']))
            break
test()

定义一个空类:

class Namespace:pass
def test():
    ns = Namespace()
    ns.i = 0
    for e in range(5):
        ns.i =+1
        print('i in for loop {}'.format(ns.i))
        while True:
            print ('i in while {}'.format(ns,i))
            break
test()

得到这个输出:

i in for loop 1
i in while 1
i in for loop 1
i in while 1
i in for loop 1
i in while 1
i in for loop 1
i in while 1
i in for loop 1
i in while 1

通缉:

i in for loop 1
i in while 1
i in for loop 2
i in while 2
i in for loop 3
i in while 3
i in for loop 4
i in while 4
i in for loop 5
i in while 5

是否有解决办法,而不诉诸于 global 所以引用的“i”不是每个循环作用域的局部?