问错误反转()：列表不可调用

EN

def dictrev():
    prompt = "Enter the key and value of a dictionary like this: 'key:value':"
    list = [];list_rev = [];i = 0
    while True:
        element = raw_input(prompt).strip().split(':')
        if element == ['.']:
            break
        list.append([]);list_rev.append([])
        print element
        print list(reversed(element))
        list[i] = element
        list_rev[i] = list(reversed(element))  
        i += 1
    print 'The dictionary you input is:'
    print dict((list))
    print '\nThe dictionary whose key and value are reversed is:'
    print dict((list_rev))

dictrev()