找出两个字典的差异：
dict1 = {'a':1,'b':2,'c':3,'d':4}
dict2 = {'a':1,'b':2,'c':5,'e':6}
differ = set(dict1.items()) ^ set(dict2.items())
print(differ)
#所有差异
#输出:{('c', 3), ('e', 6), ('c', 5), ('d', 4)}
diff = dict1.keys() & dict2
diff_vals = [(k, dict1[k], dict2[k]) for k in diff if dict1[k] != dict2[k]]
print(diff_vals)
#相同key，不同value
#输出:[('c', 3, 5)]
其它：
a = {
"x":1,
"y":2,
"z":3
}
b = {
"x":1,
"w":11,
"z":12
}
print(a.items())
>>>dict_items([('x', 1), ('y', 2), ('z', 3)])
# 查看两个字典共有的key
print(a.keys() & b.keys())
>>>{'x', 'z'}
# 查看字典a 和字典b 的不共有的key
print(a.keys() ^ b.keys())
>>>{'y'}
# 查看在字典a里面而不在字典b里面的key
print(a.keys() - b.keys())
>>>{('x', 1)}
# 查看字典a和字典b相同的键值对
print(a.items() & b.items())
>>>{'w', 'y'}
转载于： python 对比两个字典的差异 - 番茄土豆西红柿 - 博客园 (cnblogs.com)
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