segmentation fault after unpickling html tree

[Bodo Graumann]

When running the sample code in the attachment, a segmentation fault occurs.
Even with the latest trunk version, unpickling is not succesfully possible.
When trying to use another pickle protocol version (0 or 1), an exception is thrown on pickling:
"TypeError: can't pickle ElementBase objects"

System: Gentoo Linux, libxml2 v2.7.7, libxslt v1.1.26, python v2.6.5

[scoder (scoder)]

With the latest trunk, you'll get an AssertionError instead of a segfault.

[Bodo Graumann (mail-bodograumann)]

So is there a way to have it pickle and unpickle correctly?

[scoder (scoder)]

No. This has been requested before, but due to the way pickle works, it's impossible to make sure you get the same type of Element proxies back that you put in. You'd get the same XML tree, but not necessarily the same interface to it.

Pickling is only supported for lxml.objectify, where the interface is fixed.

[scoder (scoder)]

Fixed in lxml 2.3alpha1.