Bug#800500: Bug#800499: SystemError on unreadable files in sources.list.d
On Wed, Sep 30, 2015 at 10:19:42AM +0200, Sebastien Bacher wrote:
> Le 30/09/2015 10:17, Julian Andres Klode a écrit :
> > Unreadable sources.list files are an unsupported mode of operation
> > and will not be supported in neither APT nor python-apt (which
> > directly calls the functions from APT).
>
> Does it mean each python-apt client should code should have a try/except
> handling when using apt.Cache()? Wouldn't it be easier to just skip over
> the unreadable sources?
If we (actually APT) skip over unreadable sources.list files, the view
of the system state would be inconsistent. A new cache would have to be
generated in-memory not containing packages from that sources which would
change pinning, and also dependency resolution.
It also hides an error: Those files should not be unreadable. If a
sources.list file is unreadable, that's an error in the user or the
program creating it.
APT could get around displaying a warning instead, but this would not
work for python-apt, as the warning would be silently discarded.
--
Julian Andres Klode - Debian Developer, Ubuntu Member
See http://wiki.debian.org/JulianAndresKlode and http://jak-linux.org/.
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