比较和更新字典中的列表值

Question

dict1 = {
    "domain1": ["53/tcp,open,domain", "80/tcp,open,http"],
    "domain2": ["22/tcp,open,ssh", "25/tcp,open,smtp", "80/tcp,open,http",
                "443/tcp,open,https"],
    "domain3":["22/tcp,open,ssh"]}

我想将dict2与dict1进行比较，并检查是否有新键或值（这是开放端口的列表），如果是，则更新dict1

dict2 = {
    "domain3":["22/tcp,open,ssh","443/tcp,open,https"],
    "domain4":["80/tcp,open,http", "443/tcp,open,https"],
    "domain5":["80/tcp,open,http", "443/tcp,open,https"]}

我做的任务，即第一部分通过比较发现任何新的密钥dict2与dict1 键及是否有任何新的密钥检查dict2和更新dict1 。

new_item = {}
for i in dict2.keys():
    if i not in dict1.keys():
        new_item[i] = dict2[i]
        dict1[i] = dict2[i]
print("NEW DOMAINS FOUND : ",new_item)
print(dict1) ## UPDATED with New Domains Found

这是输出：

NEW DOMAINS FOUND :  {
  'domain4': ['80/tcp,open,http', '443/tcp,open,https'],
  'domain5': ['80/tcp,open,http', '443/tcp,open,https']}
 {'domain1': ['53/tcp,open,domain', '80/tcp,open,http'],
  'domain2': ['22/tcp,open,ssh', '25/tcp,open,smtp', '80/tcp,open,http',
              '443/tcp,open,https'],
  'domain3': ['22/tcp,open,ssh'],
  'domain4': ['80/tcp,open,http', '443/tcp,open,https'],
  'domain5': ['80/tcp,open,http', '443/tcp,open,https']}

我需要帮助解决该dict2的值与dict1比较任务的第二部分，如果有任何新的价值dict2然后更新这些值dict1。

如果你看一下dict2[domain3]和dict1[domain3]有在新的价值dict2[domain3]这一点，现在dict1[domain3]应该得到这些新的值更新。

我想要将dict2与dict1比较并更新值/键的输出：

dict1

{'domain1': ['53/tcp,open,domain', '80/tcp,open,http'],
 'domain2': ['22/tcp,open,ssh', '25/tcp,open,smtp', '80/tcp,open,http',
             '443/tcp,open,https'],
 'domain3': ["22/tcp,open,ssh", "443/tcp,open,https"],
 'domain4': ['80/tcp,open,http', '443/tcp,open,https'],
 'domain5': ['80/tcp,open,http', '443/tcp,open,https']}

如果您需要更多信息或有疑问，请留下评论，我将更新问题。

Answer 1

如果列表内元素的顺序不重要，则可以使用以下命令：

dict3 = {}
for k, v in dict2.items():
    dict3[k] = list(set(dict1.get(k, []) + v))

结果dict3 ：

{'domain3': ['443/tcp,open,https', '22/tcp,open,ssh'], 
 'domain5': ['80/tcp,open,http', '443/tcp,open,https'], 
 'domain4': ['80/tcp,open,http', '443/tcp,open,https']}