pyinstaller with mayavi.mlab import

[Cap]

I would like to use pyinstaller to convert a python script containing "from mayavi import mlab" into an .exe file. 

The python script Test1.py contains just one line code: from mayavi import mlab

By using the command pyinstaller Test1.py, I am able to convert the python script into an .exe file. But when I run the .exe file, I got the following error messages

   

     from mayavi import mlab
      File "<frozen importlib._bootstrap>", line 971, in _find_and_load
      File "<frozen importlib._bootstrap>", line 955, in _find_and_load_unlocked
      File "<frozen importlib._bootstrap>", line 665, in _load_unlocked
      File "c:\programdata\miniconda3\lib\site-packages\PyInstaller\loader\pyimod03_
    importers.py", line 627, in exec_module
        exec(bytecode, module.__dict__)
      File "site-packages\mayavi\mlab.py", line 16, in <module>
      File "<frozen importlib._bootstrap>", line 971, in _find_and_load
      File "<frozen importlib._bootstrap>", line 955, in _find_and_load_unlocked
      File "<frozen importlib._bootstrap>", line 665, in _load_unlocked
      File "c:\programdata\miniconda3\lib\site-packages\PyInstaller\loader\pyimod03_
    importers.py", line 627, in exec_module
        exec(bytecode, module.__dict__)
      File "site-packages\mayavi\tools\camera.py", line 24, in <module>
      File "<frozen importlib._bootstrap>", line 971, in _find_and_load
      File "<frozen importlib._bootstrap>", line 955, in _find_and_load_unlocked
      File "<frozen importlib._bootstrap>", line 665, in _load_unlocked
      File "c:\programdata\miniconda3\lib\site-packages\PyInstaller\loader\pyimod03_
    importers.py", line 627, in exec_module
        exec(bytecode, module.__dict__)
      File "site-packages\mayavi\tools\engine_manager.py", line 12, in <module>
      File "<frozen importlib._bootstrap>", line 971, in _find_and_load
      File "<frozen importlib._bootstrap>", line 955, in _find_and_load_unlocked
      File "<frozen importlib._bootstrap>", line 665, in _load_unlocked
      File "c:\programdata\miniconda3\lib\site-packages\PyInstaller\loader\pyimod03_
    importers.py", line 627, in exec_module
        exec(bytecode, module.__dict__)
      File "site-packages\mayavi\preferences\api.py", line 4, in <module>
      File "<frozen importlib._bootstrap>", line 971, in _find_and_load
      File "<frozen importlib._bootstrap>", line 955, in _find_and_load_unlocked
      File "<frozen importlib._bootstrap>", line 665, in _load_unlocked
      File "c:\programdata\miniconda3\lib\site-packages\PyInstaller\loader\pyimod03_
    importers.py", line 627, in exec_module
        exec(bytecode, module.__dict__)
      File "site-packages\mayavi\preferences\preference_manager.py", line 29, in <mo
    dule>
      File "<frozen importlib._bootstrap>", line 971, in _find_and_load
      File "<frozen importlib._bootstrap>", line 955, in _find_and_load_unlocked
      File "<frozen importlib._bootstrap>", line 665, in _load_unlocked
      File "c:\programdata\miniconda3\lib\site-packages\PyInstaller\loader\pyimod03_
    importers.py", line 627, in exec_module
        exec(bytecode, module.__dict__)
      File "site-packages\traitsui\api.py", line 36, in <module>
      File "<frozen importlib._bootstrap>", line 971, in _find_and_load
      File "<frozen importlib._bootstrap>", line 955, in _find_and_load_unlocked
      File "<frozen importlib._bootstrap>", line 665, in _load_unlocked
      File "c:\programdata\miniconda3\lib\site-packages\PyInstaller\loader\pyimod03_
    importers.py", line 627, in exec_module
        exec(bytecode, module.__dict__)
      File "site-packages\traitsui\editors\__init__.py", line 23, in <module>
      File "<frozen importlib._bootstrap>", line 971, in _find_and_load
      File "<frozen importlib._bootstrap>", line 955, in _find_and_load_unlocked
      File "<frozen importlib._bootstrap>", line 665, in _load_unlocked
      File "c:\programdata\miniconda3\lib\site-packages\PyInstaller\loader\pyimod03_
    importers.py", line 627, in exec_module
        exec(bytecode, module.__dict__)
      File "site-packages\traitsui\editors\api.py", line 24, in <module>
      File "<frozen importlib._bootstrap>", line 971, in _find_and_load
      File "<frozen importlib._bootstrap>", line 955, in _find_and_load_unlocked
      File "<frozen importlib._bootstrap>", line 665, in _load_unlocked
      File "c:\programdata\miniconda3\lib\site-packages\PyInstaller\loader\pyimod03_
    importers.py", line 627, in exec_module
        exec(bytecode, module.__dict__)
      File "site-packages\traitsui\editors\code_editor.py", line 37, in <module>
      File "site-packages\traitsui\editors\code_editor.py", line 49, in ToolkitEdito
    rFactory
      File "site-packages\traits\traits.py", line 655, in __call__
      File "site-packages\traits\traits.py", line 1414, in Color
      File "site-packages\traitsui\toolkit_traits.py", line 8, in ColorTrait
      File "site-packages\traitsui\toolkit.py", line 109, in toolkit
      File "site-packages\pyface\base_toolkit.py", line 281, in find_toolkit
      File "site-packages\pyface\base_toolkit.py", line 209, in import_toolkit
    RuntimeError: No traitsui.toolkits plugin found for toolkit null
    [8520] Failed to execute script Test1

Here in the following, you could find the packages, which I installed with pip:

   

 Package         Version
    --------------- ------------------
    altgraph        0.16.1
    apptools        4.4.0
    asn1crypto      0.24.0
    certifi         2019.3.9
    cffi            1.12.3
    chardet         3.0.4
    conda           4.6.14
    configobj       5.0.6
    cryptography    2.6.1
    cycler          0.10.0
    envisage        4.7.1
    future          0.17.1
    idna            2.8
    kiwisolver      1.1.0
    macholib        1.11
    matplotlib      3.1.0
    mayavi          4.6.2
    menuinst        1.4.16
    mkl-fft         1.0.12
    mkl-random      1.0.2
    numpy           1.11.3
    pefile          2019.4.18
    Pillow          6.0.0
    pip             19.1.1
    pycosat         0.6.3
    pycparser       2.19
    pyface          6.1.0
    Pygments        2.4.0
    PyInstaller     3.5.dev0+d74052489
    pyOpenSSL       19.0.0
    pyparsing       2.4.0
    PySocks         1.7.0
    python-dateutil 2.8.0
    pywin32         223
    pywin32-ctypes  0.2.0
    QtPy            1.7.1
    requests        2.21.0
    ruamel-yaml     0.15.46
    scipy           1.2.1
    setuptools      41.0.1
    shiboken2       5.12.3
    sip             4.19.8
    six             1.12.0
    traits          5.1.1
    traitsui        6.0.0
    urllib3         1.24.2
    vtk             8.1.2
    wheel           0.33.4
    win-inet-pton   1.1.0
    wincertstore    0.2
    wxPython        4.0.6

I saw the question posted in this link, but did not understand how it works. I would rather use pyinstaller to convert a python script into an .exe file.