Public bug reported:
Binary package hint: python-apt
I think this bug is in Python-APT package ...
apt.cache.commit() always failed, if the global lock in apt_pkg is not
released.
To reproduce the bug, please run the following Python program:
import apt, apt_pkg
apt_pkg.init()
apt_pkg.PkgSystemLock()
apt_cache = apt.cache.Cache()
pkg = apt_cache['2vcard']
if not pkg.isInstalled:
pkg.mark_install()
else:
pkg.mark_delete()
apt_cache.commit()
apt_pkg.PkgSystemUnLock()
Error message is:
dpkg: status database area is locked by another process
Traceback (most recent call last):
File "test.py", line 10, in <module>
apt_cache.commit()
File "/usr/lib/python2.6/dist-packages/apt/deprecation.py", line 103, in
deprecated_function
return func(*args, **kwds)
File "/usr/lib/python2.6/dist-packages/apt/cache.py", line 381, in commit
raise SystemError("installArchives() failed")
SystemError: installArchives() failed
If we release the global lock in apt_pkg first, then apt.cache.commit()
will success. The following Python program will success:
import apt, apt_pkg
apt_pkg.init()
apt_pkg.PkgSystemLock()
apt_cache = apt.cache.Cache()
pkg = apt_cache['2vcard']
if not pkg.isInstalled:
pkg.mark_install()
else:
pkg.mark_delete()
apt_pkg.PkgSystemUnLock()
apt_cache.commit()
The system is Ubuntu 10.04 x86_64 version. All packages is of the latest
version.
Best regards,
Homer
** Affects: python-apt (Ubuntu)
Importance: Undecided
Status: New
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apt.cache.commit() failed if apt_pkg.PkgSystemLock() is called()
https://bugs.launchpad.net/bugs/598945
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