Henk-Jaap Wagenaar <[email protected]> added the comment:
You get what you should get: when you print obj.d, Obj.d, you will get:
<property object at 0xDEADBEEF>
which is exactly what you expect:
- in the first case, you assigned a property object to the dictionary at
obj.__dict__, so that's what you get back when you run obj.d.
- you defined a property on a class called d, and you get it when you run Obj.d
If you run print(Obj().d) you will get a TypeError: your lambda should read:
lambda self: print('called')
Properties should be added to the class not the instance, see
https://stackoverflow.com/questions/1325673/how-to-add-property-to-a-class-dynamically
and https://eev.ee/blog/2012/05/23/python-faq-descriptors/
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nosy: +Henk-Jaap Wagenaar
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<https://bugs.python.org/issue31735>
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