numpy to matlab interface with mlabwrap

I am looking for a simple way to visualize some of my data in numpy, and I discovered the mlabwrap package which looks really promising. I am trying to create a simple plot with the ability to be updated as the data changes.

Here is the matlab code that I am trying to duplicate

>> h = plot([1,2,3], [开发者_开发问答1,2,3], '-o');
>> set(h, 'XData', [0,0,0]);
>> drawnow();

to python

>> from mlabwrap import mlab
>> h = mlab.plot([1,2,3], [1,2,3], '-o')
>> mlab.set(h, 'XData', [0,0,0])
>> mlab.drawnow();

However, the second to last command fails with an error message

error: One or more output arguments not assigned during call to "set".

Any suggestions on how to fix this?

Maybe mlab is mad that you're not saving matlab's return value for that set() call...

I don't have this installed, what does someval = mlab.set(h,'XData') give?

edit: you could also try using nout... mlab.set(h,'XData',[0,0,0],nout=0)

Since set takes no output arguments, we need to tell mlabwrap that no output arguments should be given to it to avoid the error message above.

mlab.set(h, 'XData', [0,0,0], nout=0)