from mayavi import mlab error

[oscariglesias]

I installed mayavi from anaconda notebook using pip install mayavi and the other required packages, but when I run

%gui qt
import vtk
import numpy as np
import mayavi
from mayavi import mlab
import os
mlab.options.backend = 'envisage'

in a Jupyter notebook, I get the following error message. Any hint on how to solve it?

---

ModuleNotFoundError Traceback (most recent call last)
Cell In[5], line 5
3 import numpy as np
4 #import mayavi
----> 5 from mayavi import mlab
6 import os
7 mlab.options.backend = 'envisage'

File ~\AppData\Local\anaconda3\Lib\site-packages\mayavi\mlab.py:16
8 # Author: Prabhu Ramachandran prabhu_r@users.sf.net
9 # Gael Varoquaux
10 # Copyright (c) 2007-2020, Enthought, Inc.
(...)
13
14 # Mayavi imports
15 from mayavi.core.common import process_ui_events
---> 16 from mayavi.tools.camera import view, roll, yaw, pitch, move
17 from mayavi.tools.figure import figure, clf, gcf, savefig,
18 draw, sync_camera, close, screenshot
19 from mayavi.tools.engine_manager import get_engine, show_pipeline,
20 options, set_engine

File ~\AppData\Local\anaconda3\Lib\site-packages\mayavi\tools\camera.py:24
20 from numpy import pi
22 # We can't use gcf, as it creates a circular import in camera management
23 # routines.
---> 24 from .engine_manager import get_engine
27 def world_to_display(x, y, z, figure=None):
28 """ Converts 3D world coordinates to screenshot pixel coordinates.
29
30 Parameters
(...)
46 Screenshot y coordinate
47 """

File ~\AppData\Local\anaconda3\Lib\site-packages\mayavi\tools\engine_manager.py:13
10 from traits.api import HasTraits, Instance
12 # Local imports
---> 13 from mayavi.preferences.api import preference_manager
14 from mayavi.core.registry import registry
15 from mayavi.core.engine import Engine

File ~\AppData\Local\anaconda3\Lib\site-packages\mayavi\preferences\api.py:4
1 """The public API for the preferences."""
3 # The global PreferenceManager instance
----> 4 from .preference_manager import preference_manager
5 from .bindings import set_scene_preferences, get_scene_preferences

File ~\AppData\Local\anaconda3\Lib\site-packages\mayavi\preferences\preference_manager.py:128
122 helper.preferences = preferences
125 ##########################################################
126 # A Global preference manager that all other modules can use.
--> 128 preference_manager = PreferenceManager()

File ~\AppData\Local\anaconda3\Lib\site-packages\mayavi\preferences\preference_manager.py:81, in PreferenceManager.init(self, **traits)
78 super(PreferenceManager, self).init(**traits)
80 if 'preferences' not in traits:
---> 81 self._load_preferences()

File ~\AppData\Local\anaconda3\Lib\site-packages\mayavi\preferences\preference_manager.py:112, in PreferenceManager._load_preferences(self)
109 pref_file = pkg_resources.resource_stream(pkg, pref)
111 preferences = self.preferences
--> 112 default = preferences.node('default/')
113 default.load(pref_file)
114 pref_file.close()

File ~\AppData\Local\anaconda3\Lib\site-packages\apptools\preferences\scoped_preferences.py:221, in ScopedPreferences.node(self, path)
219 if self._path_contains_scope(path):
220 scope_name, path = self._parse_path(path)
--> 221 node = self._get_scope(scope_name)
223 # Otherwise, get the node from the primary scope.
224 else:
225 node = self._get_primary_scope()

File ~\AppData\Local\anaconda3\Lib\site-packages\apptools\preferences\scoped_preferences.py:406, in ScopedPreferences._get_scope(self, scope_name)
399 def _get_scope(self, scope_name):
400 """Return the scope with the specified name.
401
402 Raise a 'ValueError' is no such scope exists.
403
404 """
--> 406 scope = self.get_scope(scope_name)
407 if scope is None:
408 raise ValueError("no such scope %s" % scope_name)

File ~\AppData\Local\anaconda3\Lib\site-packages\apptools\preferences\scoped_preferences.py:373, in ScopedPreferences.get_scope(self, scope_name)
366 def get_scope(self, scope_name):
367 """Return the scope with the specified name.
368
369 Return None if no such scope exists.
370
371 """
--> 373 for scope in self.scopes:
374 if scope_name == scope.name:
375 break

File ~\AppData\Local\anaconda3\Lib\site-packages\apptools\preferences\scoped_preferences.py:357, in ScopedPreferences._scopes_default(self)
353 def _scopes_default(self):
354 """ Trait initializer. """
356 scopes = [
--> 357 Preferences(
358 name="application",
359 filename=self.application_preferences_filename,
360 ),
361 Preferences(name="default"),
362 ]
364 return scopes

File ~\AppData\Local\anaconda3\Lib\site-packages\apptools\preferences\preferences.py:91, in Preferences.init(self, **traits)
89 # If a filename has been specified then load the preferences from it.
90 if len(self.filename) > 0:
---> 91 self.load()

File ~\AppData\Local\anaconda3\Lib\site-packages\apptools\preferences\preferences.py:358, in Preferences.load(self, file_or_filename)
353 logger.debug("loading preferences from <%s>", file_or_filename)
355 # Do the import here so that we don't make 'ConfigObj' a requirement
356 # if preferences aren't ever persisted (or a derived class chooses to
357 # use a different persistence mechanism).
--> 358 from configobj import ConfigObj
360 config_obj = ConfigObj(file_or_filename, encoding="utf-8")
362 # 'name' is the section name, 'value' is a dictionary containing the
363 # name/value pairs in the section (the actual preferences ;^).

ModuleNotFoundError: No module named 'configobj'

[drocheam]

Fixed with #1315
Should work with mayavi 4.8.3.