Re: [Pysparse-developers] Python 2.5 and memory management

[Adam C P. IV <haz...@de...>]

Hello Dan, it's good to hear from you.

On Tue, 2008-03-25 at 10:06 -0400, Daniel Wheeler wrote:
> Hi Adam,
> 
> I'll look into this in the near future. Thanks for taking care of the
> deb packaging.

You're welcome.

> I do have one related question for you. How does one test deb packages without a
> clean system or root access? There doesn't seem to be an obvious way unpack and
> install locally using apt-get. Any clues?

A .deb package is an ar archive with a tarball of package files, a
tarball of control files, and a brief version file.  You can use "ar x
package.deb" which will give you these three, and then unpack the
package files and try to use them.  But you don't get the
system-integrating scripts etc.

As far as I know there's no good way to unpack and use a .deb in one's
home directory.

Do you have sufficient access to make a chroot environment?

-Adam

> On Mon, Mar 24, 2008 at 4:17 PM, Adam C Powell IV <haz...@de...> wrote:
> > Greetings,
> >
> >  First, let me introduce myself: I'm the maintainer of the Debian package
> >  of pysparse.  The package takes a somewhat different approach from
> >  upstream: instead of building the superlu, umfpack and amd sources in
> >  the pysparse package, it links to existing Debian packages for those.
> >
> >  This is an "FYI" on Debian bug 468991, viewable at
> >  http://bugs.debian.org/468991 .  The bug submitter asserts that the
> >  memory management model of python 2.5 has changed, such that objects
> >  created using PyObject_NEW should use PyObject_Del in their destructors,
> >  not PyMem_DEL.
> >
> >  According to Thomas Viehmann, this will not cause a segfault in
> >  pysparse, but should be cleaned up eventually.  I figured you should be
> >  aware of this as a maintenance "To-Do" item.
> >
> >  I'll leave this bug open until pysparse changes.
> >
> >  Thanks,
> >  -Adam
-- 
GPG fingerprint: D54D 1AEE B11C CE9B A02B  C5DD 526F 01E8 564E E4B6

Engineering consulting with open source tools
http://www.opennovation.com/