Python--比较两个字典部分value是否相等

# 比较两个字典部分是否相等
def compare_two_dict(dict1, dict2, key_list):
    flag = True
    keys1 = dict1.keys()
    keys2 = dict2.keys()
    if len(key_list) != 0:
        for key in key_list:
            if key in keys1 and key in keys2:
                if dict1[key] == dict2[key]:
                    flag = flag & True
                else:
                    flag = flag & False
            else:
                raise Exception('key_list contains error key')
    else:
        raise Exception('key_list is null')
    if flag:
        result = 'PASS'
    else:
        result = 'FAILED'
    return result

if __name__ == '__main__':
    dict1 = {
        'a': 1,
        'b': 2,
        'c': 3,
        'd': 4
    }
    dict2 = {
        'a': 1,
        'b': 2,
        'c': 3,
        'd': 8
    }
    key_list = ['a', 'c', 'b', 'd']
    result = compare_two_dict(dict1, dict2, key_list)
    print(result)