py27-mayavi: No module named wx

[Jonathan Stickel]

I am glad mayavi is working for you now.

Regarding QT, "vtk5 -x11" implies using the cocoa backend. Then the 
default variant for py*-pyface is pyqt4, which pulls in qt4-mac, which 
also uses cocoa (quartz) by default for its backend. This is one way to 
get the graphical backend (cocoa vs x11) and toolchain (qt vs wx) for 
vtk5 and mayavi to be in sync.

You could probably uninstall all py26-* ports and python26 if you want 
to. You may find something depends on python26, though.

Jonathan


On 8/13/12 19:01 , alex m. wrote:
> Hi Jonathan,
>
> Installing py27-configobj helped. Mayavi is working now.
>
> Yes, it looks like Mayavi uses Qt 4.8.2. backend although I did not
> specify this option when installing vtk5. Well.. does installing vtk5
> like "vtk5 -tcltk -x11" lead to using Qt4 backend? )
>
> As for the the py26-* ports, I was surprised myself when, as I wrote, I
> have uninstalled py26-envisagecore and py26-traits before
> uninstalling/installing vtk5 and Mayavi, and at the end I got more
> py26-* ports than at the beginning.
>
> I do not have py26-mayavi installed:
> ...: port installed *mayavi*
> The following ports are currently installed:
>    py27-mayavi @4.1.0_0 (active)
>
> Alex
>
>
> On Mon, Aug 13, 2012 at 10:31 AM, Jonathan Stickel <jjstickel at gmail.com
> <mailto:jjstickel at gmail.com>> wrote:
>
>     On 8/12/12 13:00 , macports-users-request at lists.__macosforge.org
>     <mailto:macports-users-request at lists.macosforge.org> wrote:
>
>         Date: Sat, 11 Aug 2012 23:16:47 -0400
>         From: "alex m."
>         Subject: py27-mayavi: No module named wx
>
>
>         Hi,
>
>         Per MacPorts' Mayavi maintainer's suggestion which was expressed
>         in the
>         last change to the ticket #34342, I would like to ask your help
>         with figuring out the following problem:
>
>         I have updated py-mayavi to 4.1.0 and got the error you can find
>         at the end
>         of this e-mail. It was also described in the comment 27 of the
>         ticket
>         #34432.
>
>         As suggested in the ticket #34342, py26-envisagecore @3.2.0_0
>         and py26-traits
>         @3.6.0_0 were uninstalled, vtk5 was uninstalled and installed
>         like vtk5
>         -tcltk -x11 +python27. py27-mayavi was uninstalled and installed
>         again. The
>         same error is still there. Interestingly, "port
>         installed*traits*" and
>         "port installed*envi*" now give:
>
>         (now):
>         port installed*traits*
>
>         The following ports are currently installed:
>             py26-traits @4.1.0_0 (active)
>             py26-traitsui @4.1.0_0 (active)
>             py27-traits @4.1.0_0 (active)
>             py27-traitsui @4.1.0_0 (active)
>
>         (now):
>         port installed*envi*
>
>         The following ports are currently installed:
>             py26-envisage @4.1.0_0 (active)
>             py27-envisage @4.1.0_0 (active)
>
>
>         The error message:
>         ###
>         ... : mayavi2-2.7
>         Warning: Unable to import the wx backend for pyface due to
>         traceback:
>         Traceback (most recent call last):
>
>     <snip>
>
>         ImportError: No module named wx
>
>         Traceback (most recent call last):
>             File "/opt/local/bin/mayavi2-2.7", line 9, in <module>
>               load_entry_point('mayavi==4.1.__0', 'console_scripts',
>         'mayavi2')()
>
>     <snip>
>
>         ImportError: No module named configobj
>         ____________________________________________________________________________________
>         Could not load envisage. You might have a missing dependency.
>         Do you have the EnvisageCore and EnvisagePlugins installed?
>
>         If you installed Mayavi with easy_install, try 'easy_install
>         <pkg_name>'.
>         'easy_install Mayavi[app]' will also work.
>
>         If you performed a source checkout and installed via 'python
>         setup.py
>         develop',
>         be sure to run the same command in the EnvisageCore and
>         EnvisagePlugins
>         folders.
>
>         If these packages appear to be installed, check that your numpy and
>         configobj are installed and working. If you need numpy,
>         'easy_install numpy'
>         will install numpy. Similarly, 'easy_install configobj' will install
>         configobj.
>         ###
>
>
>
>     If you use the QT4 backend (rather than wx), the warning/error
>     messages about wx can be ignored. This is a bug in Mayavi itself. I
>     see them also.
>
>     I am confused as to why you have py26-* ports installed. Do need
>     mayavi installed with both python-2.6 and python-2.7?
>
>     Regarding the error message about configobj, I think this is the
>     real problem. Do you have py27-configobj installed? If not, please
>     install and try again. It looks like it may be a dependency that I
>     missed. It got pulled in for matplotlib on my system, and so I
>     didn't notice. I will try to hunt this down.
>
>     Jonathan
>
>     P.S.
>     Mayavi-4.1 (and 4.2) have some bugs with VTK-5.10, e.g. text actors
>     such as titles give errors. I plan to wait until Mayavi-4.3 is
>     released, but I would respond to a patch to Mayavi-4.1 or 4.2.
>
>