chaco + numpy 1.13.1

[lfriedri]

I run this example on python 2.7:
https://github.com/enthought/chaco/blob/master/examples/demo/basic/cmap_image_plot.py

with numpy 1.11.3 it works, with numpy 1.13.1 I get the following:

File "R:\winpython_2017-06-23\python-2.7.13.amd64\lib\site-packages\traits\has_traits.py", line 2172, in configure_traits
kind, handler, id, scrollable, args )
File "R:\winpython_2017-06-23\python-2.7.13.amd64\lib\site-packages\traitsui\wx\toolkit.py", line 219, in view_application
id, scrollable, args )
File "R:\winpython_2017-06-23\python-2.7.13.amd64\lib\site-packages\traitsui\wx\view_application.py", line 100, in view_application
args = args )
File "R:\winpython_2017-06-23\python-2.7.13.amd64\lib\site-packages\traitsui\view.py", line 433, in ui
ui.ui( parent, kind )
File "R:\winpython_2017-06-23\python-2.7.13.amd64\lib\site-packages\traitsui\ui.py", line 221, in ui
self.rebuild( self, parent )
File "R:\winpython_2017-06-23\python-2.7.13.amd64\lib\site-packages\traitsui\wx\toolkit.py", line 140, in ui_live
ui_live.ui_live( ui, parent )
File "R:\winpython_2017-06-23\python-2.7.13.amd64\lib\site-packages\traitsui\wx\ui_live.py", line 68, in ui_live
ui_dialog( ui, parent, NONMODAL )
File "R:\winpython_2017-06-23\python-2.7.13.amd64\lib\site-packages\traitsui\wx\ui_live.py", line 99, in ui_dialog
ui.owner.init( ui, parent, style )
File "R:\winpython_2017-06-23\python-2.7.13.amd64\lib\site-packages\traitsui\wx\ui_live.py", line 223, in init
sw = panel( ui, window )
File "R:\winpython_2017-06-23\python-2.7.13.amd64\lib\site-packages\traitsui\wx\ui_panel.py", line 338, in panel
content[0], ui )
File "R:\winpython_2017-06-23\python-2.7.13.amd64\lib\site-packages\traitsui\wx\ui_panel.py", line 512, in fill_panel_for_group
create_panel )
File "R:\winpython_2017-06-23\python-2.7.13.amd64\lib\site-packages\traitsui\wx\ui_panel.py", line 661, in init
self.add_items(content, panel, self.sizer)
File "R:\winpython_2017-06-23\python-2.7.13.amd64\lib\site-packages\traitsui\wx\ui_panel.py", line 1015, in add_items
item_panel ).set(
File "R:\winpython_2017-06-23\python-2.7.13.amd64\lib\site-packages\traitsui\editor_factory.py", line 145, in simple_editor
description = description )
File "R:\winpython_2017-06-23\python-2.7.13.amd64\lib\site-packages\traitsui\editor.py", line 133, in init
self.old_value = getattr( self.object, self.name )
File "R:\rndthon\scripts\examples\visualization\chaco2d.rts", line 75, in _plot_default
return _create_plot_component()
File "R:\rndthon\scripts\examples\visualization\chaco2d.rts", line 43, in _create_plot_component
colormap=jet)[0]
File "R:\winpython_2017-06-23\python-2.7.13.amd64\lib\site-packages\chaco\plot.py", line 533, in img_plot
value = self._get_or_create_datasource(data)
File "R:\winpython_2017-06-23\python-2.7.13.amd64\lib\site-packages\chaco\plot.py", line 1146, in _get_or_create_datasource
ds = ImageData(data=data, value_depth=1)
File "R:\winpython_2017-06-23\python-2.7.13.amd64\lib\site-packages\traits\trait_handlers.py", line 1980, in validate
return validate( object, name, value )
File "R:\winpython_2017-06-23\python-2.7.13.amd64\lib\site-packages\traits\trait_handlers.py", line 1603, in validate
if value in self.values:
ValueError: The truth value of an array with more than one element is ambiguous. Use a.any() or a.all()

[rkern]

This was fixed in #350. Can you try with master?

[lfriedri]

I do not have the toolchain to build all this, therefor I use the precompiled versions from here:
http://www.lfd.uci.edu/~gohlke/pythonlibs/
Anyway, do you mean "master of chaco" or "master of enable"?

[rkern]

I meant master of chaco. I do believe that this is fixed; we just need to make a new release with the fix.

[lfriedri]

thank you.

[lfriedri]

does it make sense to try master of chaco with the versions of enable (4.6.2) and traits (4.6.0) that I have?

[rkern]

Yeah, those should work.

[lfriedri]

thank you. maybe I find the time to give it a try. Otherwise I will rollback to numpy 1.11.3, which will prevent me from using mayavi.mlab. (which is a pity, however, at the current situation chaco is more important to me...)

[jvkersch]

@lfriedri We've released a new version of enable and chaco (both 4.7.0) with the fix mentioned above included in it, and there are wheels available from Gohlke with this release. I'll close this issue since there's nothing more to do here, but feel free to reopen if you find the problem persists with the new release.