Brett C. added the comment:
This is not the Python issue tracker, that's https://bugs.python.org. There was
also no attached image. (And yes it is possible depending on the type of object
that 'z' is).
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nosy: +brett.cannon
status: chatting -> resolved
New submission from Minh Tran Trong :
Please take a look at the image attached.
I tried to create an object z in memory, then call it with any function, such
as print([e for e in z]) or list(z), after that, z values become empty.
Is it reasonable design or a bug? I found this appear in both
