Destroying pkgCacheFile releases system lock

[Evgeny Kapun]

Binary package hint: python-apt

This code should work, but doesn't:

 >>> import apt_pkg
 >>> apt_pkg.init()
 >>> with apt_pkg.SystemLock():
 ... x = apt_pkg.Cache()
 ... del x
 Reading package lists... Done
 Building dependency tree
 Reading state information... Done
 Traceback (most recent call last):
   File "<stdin>", line 3, in <module>
 SystemError: E:Not locked

(lines beginning with ... should be indented, but Launchpad collapses multiple spaces into one when not at the beginning of the line)

Architecture: amd64
apt 0.8.10ubuntu1
python-apt 0.7.100.1ubuntu4

[Julian Andres Klode (juliank)]

APT's pkgCacheFile unlocks the system when destructed or closed. I'm not sure why.

[Julian Andres Klode (juliank)]

I fixed this in 1.7.0, but forgot about this bug and tracked it in bug 1794053, so marking this as a duplicate.