Error 'object has no attribute' when iterating thru a dictionary

[mrapple2020]

from collections import defaultdict
arch_dic = {}
arch_dic = defaultdict(list)
arch_dic['PSE2'].append("0/7/CPU0")
arch_dic['PSE2'].append("1/7/CPU0")
interface=['0/7']
for k, v in arch_dic.items():
    print(v)                                 #<=== My desire here is to see if "interface" matches any elements of Values.

#['0/7/CPU0', '1/7/CPU0']                   #    <== value in the dictionary

result = v.find(interface)                 #<== I tried to use 'find', but getting an error.I would need a better to iterate thru "values". 

Traceback (most recent call last):
File "<stdin>", line 1, in <module>
AttributeError: 'list' object has no attribute 'find'
>>>