合并具有不同关键字的两个字典列表

dict_list1 = [{'key1': 'value1'}, {'key2': 'value2'}]
dict_list2 = [{'key3': 'value3'}, {'key4': 'value4'}]

dict_list1.extend(dict_list2)

for dict2 in dict_list2:
    for dict1 in dict_list1:
        if any(key in dict1 for key in dict2.keys()):
            break
    else:
        dict_list1.append(dict2)

print(dict_list1)

[{'key1': 'value1'}, {'key2': 'value2'}, {'key3': 'value3'}, {'key4': 'value4'}]