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Re: Help with Python SWIG bindings and callbacks [SOLVED]

From: Lawrence Stewart <lstewart_at_room52.net>
Date: Sun, 24 Aug 2008 17:20:24 +1000

Lawrence Stewart wrote:
> Hi all,
> I'm playing with the Python SWIG bindings for SVN 1.5.1 and have run
> into a brick wall. I want to update a working copy from a python script,
> and have a python function callback executed for each item updated. The
> python code below hopefully illustrates what I'm trying to do.
> def update_callback(notify, pool):
> print "in callback"
> def update(wc, rev):
> ctx = svn.client.svn_client_create_context()
> ctx.notify_func2 = update_callback
> r = svn.core.svn_opt_revision_t()
> r.kind = svn.core.svn_opt_revision_head
> result_rev = svn.client.svn_client_update(wc, r, True, ctx)
> print "result_rev: %d" % result_rev
> The update function does work and my working copy does get updated the
> HEAD, but my callback is never executed.
> I'm basing this code on the statement in
> http://svn.collab.net/svn-doxygen/group__Update.html that says if
> ctx->notify_func2 is not NULL it will be called for each item updated.
> This of course may not work or be applicable in Python land... someone
> please tell me if this is the case.
> I've tried countless variations of the above code and changing
> parameters to the callback, changing the way the callback is assigned to
> the context object (I tried following the way it was done in the
> client.py unit test file for a different callback type that is used)
> etc. etc. without success.
> I suspect my problem is that I just don't grok the translation that SWIG
> is doing from the C API up into Python and therein lies the problem.
> Any help in understanding what I'm doing wrong or how I can achieve
> something equivalent would be greatly appreciated.

Quick follow up... I just stumbled across this thread that describes
what I'm trying to do.


It provided the missing clue I needed to make this work.

Apologies for the noise.


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Received on 2008-08-24 09:20:44 CEST

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