> > > > I am but a humble newbie, but why not simply take your figure > > object/reference and Pickle it (see > > http://docs.python.org/lib/module-pickle.html)? > > > > Won't work. Pickling only works for objects that have been designed for > it. Such design is not trivial for extension code, and has not been > done for mpl.
I keep coming back to this from time-to-time and have a go a poking around in the mpl codebase but I've never figured out exactly what state the matplotlib "Lazy Values" and "BinOps" store. If this internal state could be retrieved and then later restored, then python can pickle the extension objects using the copy-reg module. It might be enough if methods were added to the BinOp objects to retrieve internal objects to which they link. You could then recursively walk through the whole lazy-value tree. To make this work, you would need to retrieve the underlying C++ objects with it's python wrapper object intact (i.e. with the same IDs) so that python references to that object created elsewhere still work. While the concept of Lazy Values is easy enough to understand, understanding how and where these objects fit in to the MPL architecture is hard. I think a little documentation or explanation of this could go a long way to helping implement this. If I could understand all the places the Lazy Values are used, I'm keen to attempt the implementation of pickle-ability. One problem for me is my C++ knowledge is ~ 0. BC > > Eric > > ------------------------------------------------------------------------- > This SF.net email is sponsored by: Splunk Inc. > Still grepping through log files to find problems? Stop. > Now Search log events and configuration files using AJAX and a browser. > Download your FREE copy of Splunk now >> http://get.splunk.com/ ------------------------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now >> http://get.splunk.com/ _______________________________________________ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
