On Sun, Apr 12, 2009 at 10:17:51AM -0300, Mario R. Carro wrote: > Hi, I'm sorry it didn't work: [...] > File "plugins/descriptions.py", line 77, in index > self.indexer.index_text_without_positions(version.raw_description) > File "/usr/lib/python2.5/site-packages/apt/package.py", line 257, in > raw_description > return self._records.LongDesc > File "/usr/lib/python2.5/site-packages/apt/package.py", line 214, in > _records > if self.package._pcache._records.Lookup(self._cand.FileList[0]): > AttributeError: 'NoneType' object has no attribute 'FileList' > ma...@epox:~/tmp/apt-xapian-index$
Ok, then it *really* sounds like a problem with python-apt. It unexpectedly throws on innocent-looking accessor methods when it finds a package that is removed but not purged, and not in the package database. I'm attaching a test script that reproduces the problem. As I see it, python-apt should rather throw when I get the 'version' object, or (better) return None for the version, and not give me a broken 'version' object. I've reported a bug to python-apt, and I'll set this bug to be blocked by the python-apt one as soon as I get the bug number. Ciao, Enrico -- GPG key: 1024D/797EBFAB 2000-12-05 Enrico Zini <enr...@debian.org>
#!/usr/bin/python
# Try to reproduce the python-apt problem behind #523737, #523747 and #521346
import apt, sys
print "Looking for the situation that annoys Enrico..."
cache = apt.Cache(memonly=True)
for pkg in cache:
ver = pkg.candidate
if ver is None:
print >>sys.stderr, name, "has no candidate version"
sys.exit(0)
# python-apt should not raise an exception at this point
try:
dummy = ver.raw_description
except:
print "Enrico is annoyed by the behaviour of python-apt on", pkg.name
raise
print "You don't have any packages that cause python-apt to annoy Enrico"
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