New submission from Chen Zero :
Hi, when I'm trying to serialize/deserialize python exception object through
pickle, I found that deserialize result is not the same as the original
object...
My python version is 3.9.1, working os: macOS Big Sur 11.4
Here is minimum reproducing code example:
import pickle
class ExcA(Exception):
def __init__(self, want):
msg = "missing "
msg += want
super().__init__(msg)
ExcA('bb') # this will output ExcA("missing bb"), which is good
pickle.loads(pickle.dumps(ExcA('bb'))) # this will output ExcA("missing
missing bb"), which is different from `ExcA('bb')`
--
files: screenshot.png
messages: 401128
nosy: yonghengzero
priority: normal
severity: normal
status: open
title: Python exception object is different after pickle.loads and pickle.dumps
type: behavior
versions: Python 3.9
Added file: https://bugs.python.org/file50262/screenshot.png
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<https://bugs.python.org/issue45112>
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