New submission from Hubert Tournier <[email protected]>:
After adding a few records, the shelve module corrupts the database keys (the
database is still readable if an element key is known, but no more iterable):
Traceback (most recent call last):
File "./shelve-test.py", line 81, in <module>
_verify_whois_cache()
File "./shelve-test.py", line 61, in _verify_whois_cache
for key in db.keys():
File "/usr/local/lib/python3.8/_collections_abc.py", line 720, in __iter__
yield from self._mapping
File "/usr/local/lib/python3.8/shelve.py", line 95, in __iter__
for k in self.dict.keys():
SystemError: Negative size passed to PyBytes_FromStringAndSize
I provide a short test program and data that systematically reproduces the bug.
I added the a script showing execution messages, the resulting database in DB
and text formats.
Tested with Python 3.8.12 on FreeBSD 13.0-RELEASE-p8.
I suppose Python is using my system package db5-5.3.28_8
(Oracle Berkeley DB, revision 5.3).
See also similar issues:
https://bugs.python.org/issue33074
https://bugs.python.org/issue30388
----------
components: Library (Lib)
files: shelve-test.zip
messages: 415625
nosy: HubTou
priority: normal
severity: normal
status: open
title: Database corruption with the shelve module
type: behavior
versions: Python 3.8
Added file: https://bugs.python.org/file50693/shelve-test.zip
_______________________________________
Python tracker <[email protected]>
<https://bugs.python.org/issue47072>
_______________________________________
_______________________________________________
Python-bugs-list mailing list
Unsubscribe:
https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
