Building wheels for collected packages: mayavi, Sphinx, pyface, traitsui, memory-profiler, pypandoc, apptools, configobj, envisage
  Building wheel for mayavi (setup.py): started
  Building wheel for mayavi (setup.py): finished with status 'error'
  ERROR: Command errored out with exit status 1:
   command: /usr/share/miniconda/bin/python -u -c 'import io, os, sys, setuptools, tokenize; sys.argv[0] = '"'"'/tmp/pip-req-build-goy0uugo/setup.py'"'"'; __file__='"'"'/tmp/pip-req-build-goy0uugo/setup.py'"'"';f = getattr(tokenize, '"'"'open'"'"', open)(__file__) if os.path.exists(__file__) else io.StringIO('"'"'from setuptools import setup; setup()'"'"');code = f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' bdist_wheel -d /tmp/pip-wheel-a85htd_0
       cwd: /tmp/pip-req-build-goy0uugo/
  Complete output (33 lines):
  running bdist_wheel
  running build
  Traceback (most recent call last):
    File "<string>", line 1, in <module>
    File "/tmp/pip-req-build-goy0uugo/setup.py", line 411, in <module>
      setup(
    File "/usr/share/miniconda/lib/python3.8/site-packages/numpy/distutils/core.py", line 169, in setup
      return old_setup(**new_attr)
    File "/usr/share/miniconda/lib/python3.8/site-packages/setuptools/__init__.py", line 153, in setup
      return distutils.core.setup(**attrs)
  ModuleNotFoundError: No module named 'vtk'
  ----------------------------------------
  ERROR: Failed building wheel for mayavi
  Running setup.py clean for mayavi