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Deleting a nonexistent key corrupts the database #23

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benrg opened this issue Jan 6, 2022 · 0 comments

benrg commented Jan 6, 2022

>>> import semidbm
>>> db = semidbm.open('test', 'n')
>>> del db[b'nonexistent']
Traceback [...]
KeyError: b'nonexistent'
>>> db[b'foo'] = b'bar'
>>> db[b'foo']
b'exi'
>>> db.close()
>>> db = semidbm.open('test', 'r')
Traceback [...]
KeyError: b'nonexistent'

The fix is probably to move the del above the write in _SemiDBM.__delitem__ (and add a regression test).

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