Loading visualization with a "Text module" fails: Exception ...

[mabtecno]

Hi, anyone knows how to solve this:

After saving a visualization of a scene that includes a “Text module” in order to add a title to the image, if you try to load that visualization Mayavi2 shows the error: “Exception In /usr/lib/python2.7/dist-packages/traits/trait_handlers.py:168
TraitError: The 'y_position' trait of a Text instance must be a float, but a value of None <type 'NoneType'> was specified. (in error)”
I have try several things but it seems to be a bug. This text module is very useful when it is wanted to have the name of the images in the snapshots.

[stefanoborini]

Confirmed. Investigating.

[stefanoborini]

Apparently the problem is in the saving. The value is None in the file, so either it's not saved, or it's not set (unlikely, as I assume the Text object acts as a model).

[stefanoborini]

I also verified that the save does provide a dictionary for pickling that does contain a value, at least from the get_pure_state of the Text object. So the value must have been lost between the extraction of this state and its dump on the disk. This is puzzling because the dumping is done with an ordinary pickle.