[Mne_analysis] VTK Module Import Error | Anaconda Windows 10

[Mar Tin]

        External Email - Use Caution        

Dear mne-community,

first of all, thanks a lot for your great work on mne-python, I am
benefiting a lot from it.
I read the issue about vtk and pip, probably my problem is related to this
issue (https://github.com/mne-tools/mne-python/issues/5858).

This weekend, I tried to install mne-python according to your instructions
and got this *ModuleNotFoundError* when the wheel for mayavi was built:















































*Building wheels for collected packages: mayavi  Running setup.py
bdist_wheel for mayavi ... error  Complete output from command
C:\Anaconda3\envs\mne\python.exe -u -c "import setuptools,
tokenize;__file__='C:\\Users\\RCHNER~1\\AppData\\Local\\Temp\\pip-req-build-b24h2ill\\setup.py';f=getattr(tokenize,
'open', open)(__file__);code=f.read().replace('\r\n',
'\n');f.close();exec(compile(code, __file__, 'exec'))" bdist_wheel -d
C:\Users\RCHNER~1\AppData\Local\Temp\pip-wheel-q3jzjwws --python-tag cp36:
running bdist_wheel  running build  Traceback (most recent call last):
File "C:\Anaconda3\envs\mne\lib\site-packages\vtk\vtkIOImage.py", line 5,
in <module>      from .vtkIOImagePython import *  ImportError: DLL load
failed: Das angegebene Modul wurde nicht gefunden.  During handling of the
above exception, another exception occurred:  Traceback (most recent call
last):    File "<string>", line 1, in <module>    File
"C:\Users\RCHNER~1\AppData\Local\Temp\pip-req-build-b24h2ill\setup.py",
line 470, in <module>      **config    File
"C:\Anaconda3\envs\mne\lib\site-packages\numpy\distutils\core.py", line
169, in setup      return old_setup(**new_attr)    File
"C:\Anaconda3\envs\mne\lib\site-packages\setuptools\__init__.py", line 143,
in setup      return distutils.core.setup(**attrs)    File
"C:\Anaconda3\envs\mne\lib\distutils\core.py", line 148, in setup
dist.run_commands()    File "C:\Anaconda3\envs\mne\lib\distutils\dist.py",
line 955, in run_commands      self.run_command(cmd)    File
"C:\Anaconda3\envs\mne\lib\distutils\dist.py", line 974, in
run_command      cmd_obj.run()    File
"C:\Anaconda3\envs\mne\lib\site-packages\wheel\bdist_wheel.py", line 188,
in run      self.run_command('build')    File
"C:\Anaconda3\envs\mne\lib\distutils\cmd.py", line 313, in run_command
self.distribution.run_command(command)    File
"C:\Anaconda3\envs\mne\lib\distutils\dist.py", line 974, in
run_command      cmd_obj.run()    File
"C:\Users\RCHNER~1\AppData\Local\Temp\pip-req-build-b24h2ill\setup.py",
line 268, in run      build_tvtk_classes_zip()    File
"C:\Users\RCHNER~1\AppData\Local\Temp\pip-req-build-b24h2ill\setup.py",
line 254, in build_tvtk_classes_zip      gen_tvtk_classes_zip()    File
"tvtk\setup.py", line 83, in gen_tvtk_classes_zip      from tvtk.code_gen
import TVTKGenerator    File
"C:\Users\RCHNER~1\AppData\Local\Temp\pip-req-build-b24h2ill\tvtk\code_gen.py",
line 10, in <module>      import vtk_module as vtk    File
"tvtk\vtk_module.py", line 15, in <module>      from vtk import *    File
"C:\Anaconda3\envs\mne\lib\site-packages\vtk\__init__.py", line 56, in
<module>      from .vtkIOImage import *    File
"C:\Anaconda3\envs\mne\lib\site-packages\vtk\vtkIOImage.py", line 9, in
<module>      from vtkIOImagePython import *  ModuleNotFoundError: No
module named 'vtkIOImagePython'*

I tried the same on another windows computer, and got the same error. The
installation on Ubuntu is working.
After *changing the channel in environment.yml to conda-forge*, the
environment and mayavi could be installed. But the versions of several
packages are lower than in the channel=default installation.
Those are the outputs of mne.sys_info() from the failed and the
conda-forge-environment:

Python 3.6.8 |Anaconda, Inc.| (default, Dec 30 2018, 18:50:55) [MSC v.1915
64 bit (AMD64)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> import mne
>>> mne.sys_info()
Platform:      Windows-10-10.0.17763-SP0
Python:        3.6.8 |Anaconda, Inc.| (default, Dec 30 2018, 18:50:55) [MSC
v.1915 64 bit (AMD64)]
Executable:    C:\Anaconda3\envs\mne\python.exe
CPU:           Intel64 Family 6 Model 158 Stepping 9, GenuineIntel: 8 cores
Memory:        15.9 GB

mne:            0.17.0
numpy:        1.15.4 {blas=mkl_rt, lapack=mkl_rt}
scipy:          1.2.0
matplotlib:    3.0.2 {backend=Qt5Agg}

sklearn:       0.20.2
nibabel:        2.3.3
mayavi:        Not found
cupy:           Not found
pandas:        0.24.0
dipy:            Not found

Python 3.6.6 | packaged by conda-forge | (default, Jul 26 2018, 11:48:23)
[MSC v.1900 64 bit (AMD64)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> import mne
>>> mne.sys_info()
C:\Anaconda3\envs\mne_cf\lib\site-packages\sklearn\externals\joblib\externals\cloudpickle\cloudpickle.py:47:
DeprecationWarning: the imp module is deprecated in favour of importlib;
see the module's documentation for alternative uses
  import imp
Platform:      Windows-10-10.0.17763-SP0
Python:        3.6.6 | packaged by conda-forge | (default, Jul 26 2018,
11:48:23) [MSC v.1900 64 bit (AMD64)]
Executable:    C:\Anaconda3\envs\mne_cf\python.exe
CPU:           Intel64 Family 6 Model 158 Stepping 9, GenuineIntel: 8 cores
Memory:        15.9 GB

mne:            0.17.0
numpy:        1.15.4 {blas=mkl_rt, lapack=mkl_rt}
scipy:          1.1.0
matplotlib:    3.0.0 {backend=Qt5Agg}

sklearn:       0.20.0
nibabel:       2.3.3
mayavi:       4.7.0.dev0 {qt_api=pyqt5, PyQt5=5.9.2}
cupy:          Not found
pandas:       0.24.0
dipy:           0.13.0

I am a very beginner in conda and python and can't really understand the
problem. Is mne-python also working with the conda-forge-packages?

Kind regards,
Martin
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