[Python-Dev] Issue 10194 - Adding a gc.remap() function (original) (raw)

Peter Ingebretson pingebre at yahoo.com
Wed Oct 27 01:31:41 CEST 2010

--- On Tue, 10/26/10, P.J. Eby <pje at telecommunity.com> wrote:

If all you really want this for is reloading, it would probably make more sense to simply modify the existing class and function objects using the reloaded values as a template, then save the modified classes and functions back to the module.

Have you tried http://pypi.python.org/pypi/plone.reload or http://svn.python.org/projects/sandbox/trunk/xreload/xreload.py, or any other existing code reloaders, or tried extending them for your specific use case?

I've investigated several reloading frameworks, including the ones you mentions as well as http://code.google.com/p/reimport/ and http://code.google.com/p/livecoding/.

The approach of using the gc to remap references seemed to have the fewest overall limitations, but requiring C API changes is a big downside. I'm going to have to do a more detailed comparison of the features offered by each approach.

--- On Tue, 10/26/10, exarkun at twistedmatrix.com <exarkun at twistedmatrix.com> wrote:

This can be implemented with ctypes right now (I half did it several years ago).

Jean-Paul

Is there a trick to doing it this way, or are you suggesting building a ctypes wrapper for each C type in the Python library, and then effectively reimplementing tp_traverse in Python?

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