Python两个字典按相同key值合并，value放到列表里

dict1 = {'a':1, 'b':2, 'c':3}
dict2 = {'a':4, 'b':5, 'd':6}

keys1 = set(dict1.keys())
keys2 = set(dict2.keys())

common_keys = keys1.intersection(keys2)

dict_tmp = {}
for key in common_keys:
    dict_tmp[key] = [dict1[key], dict2[key]]

print(dict_tmp)

输出结果为：

{'a':[1, 4], 'b':[2, 5]}