I am trying to 'minus' out the common elements within 2 lists, however the elements within the 2 lists are dictionary.
Example:
list_dict_01 = [{'aaa':123}, {'bbb':234}, {'ccc':234}, {'ddd':456}]
list_dict_02 = [{'bbb':234}, {'ddd':456}]
res = list(set(list_dict_01)^set(list_dict_02))
# Expected output : `[{'aaa':123}, {'ccc':234}]`
However as I execute the code, I got the following errors:
# Error: unhashable type: 'dict'
# Traceback (most recent call last):
# File "<maya console>", line 4, in <module>
# TypeError: unhashable type: 'dict' #
What other ways can I do to achieve the result I wanted?
这有效
[item for item in list_dict_01 if not item in list_dict_02]+[item for item in list_dict_02 if not item in list_dict_01]
It is the same as the first answer suggested, with the use of filter
function:
list_dict_01 = [{'aaa':123}, {'bbb':234}, {'ccc':234}, {'ddd':456}]
list_dict_02 = [{'bbb':234}, {'ddd':456}]
res = list(filter(lambda i: not i in list_dict_01, list_dict_02)) + list(filter(lambda i: not i in list_dict_02, list_dict_01))
print(res)
Output:
[{'aaa': 123}, {'ccc': 234}]
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