[issue42165] closed (reopen with other issue)

[Ronald Oussoren]

Change by Ronald Oussoren :


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stage:  -> resolved
status: open -> closed

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[issue42165] closed (reopen with other issue)

[Eric V. Smith]

Eric V. Smith  added the comment:

To answer the question:

> "can anyone explain why "pickle.loads(np.float64(0.34104))" prints "True"

You can use pickletools.dis:

>>> bytes(np.float64(0.34104))
b'\x88.\xa8o\x99\xd3\xd5?'

>>> pickletools.dis(bytes(np.float64(0.34104)))
0: \x88 NEWTRUE
1: .STOP

Note that pickle ignores anything after the end of the pickle (the STOP 
opcode), so only the first 2 bytes are being used.

As Serhiy said, it's just chance that the bytes returned by numpy happen to be 
a valid pickle for some values. You should not be trying to .loads() something 
that isn't a valid pickle stream. It's not clear why you think a byte string 
returned by np.float64 would be a valid pickle.

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nosy: +eric.smith
stage: resolved -> 
status: closed -> open

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[issue42165] closed (reopen with other issue)

[hyoxt121]

Change by hyoxt121 :


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title: Question about converting numpy float to bytes (bug??) -> closed (reopen 
with other issue)

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