NameError: name 'file' is not defined. Did you mean: 'filter'? when running mayavi/examples/mayavi/mlab/chemistry.py

When run mayavi/examples/mayavi/mlab/chemistry.py, a NameError: name 'file' is not defined. Did you mean: 'filter'? will rise

Replication: python mayavi/examples/mayavi/mlab/chemistry.py

Full trace:

(py311) (base) cyliu@aus552cyliu 3.11_test % python3.11 mayavi/examples/mayavi/mlab/chemistry.py  
Downloading data, please wait
2023-05-11 15:49:51.896 Python[7211:183332] ApplePersistenceIgnoreState: Existing state will not be touched. New state will be written to /var/folders/2z/kylzj9s92y71cxscmljmpqrh0000gt/T/org.python.python.savedState
Traceback (most recent call last):
  File "/Users/cyliu/Documents/3.11_test/mayavi/examples/mayavi/mlab/chemistry.py", line 71, in <module>
    str = ' '.join(file('h2o-elf.cube').readlines()[9:])
                   ^^^^
NameError: name 'file' is not defined. Did you mean: 'filter'?

Link: https://github.com/enthought/mayavi/blob/master/examples/mayavi/mlab/chemistry.py

Env: MacOS python3.11

Package Version Editable project location

apptools 5.2.0 attrdict 2.0.1 attrdict3 2.0.2 blosc2 2.0.0 celiagg 2.1.3 certifi 2022.12.7 chaco 5.1.0 /Users/cyliu/Documents/3.11_test/chaco charset-normalizer 3.1.0 configobj 5.0.8 contourpy 1.0.7 cPython 0.0.6 cycler 0.11.0 Cython 0.29.34 dnspython 2.3.0 enable 5.4.0.dev38 /Users/cyliu/Documents/3.11_test/enable envisage 7.0.3 fonttools 4.39.2 h5py 3.8.0 idna 3.4 joblib 1.2.0 kiwisolver 1.4.4 matplotlib 3.7.1 mayavi 4.8.2.dev0 /Users/cyliu/Documents/3.11_test/mayavi msgpack 1.0.5 numexpr 2.8.4 numpy 1.24.2 packaging 23.1 pandas 1.5.3 Pillow 9.4.0 pip 23.1 py-cpuinfo 9.0.0 PyAudio 0.2.13 pyface 8.0.0 /Users/cyliu/Documents/3.11_test/pyface pygarrayimage 1.0 pyglet 2.0.5 /Users/cyliu/Documents/3.11_test/pyglet Pygments 2.14.0 pymongo 4.3.3 pyparsing 3.0.9 PySide6 6.4.3 PySide6-Addons 6.4.3 PySide6-Essentials 6.4.3 python-dateutil 2.8.2 pythonw 3.0.3 pytz 2023.2 reportlab 3.6.12 requests 2.28.2 scikit-learn 1.2.2 scipy 1.10.1 setuptools 65.6.3 shiboken6 6.4.3 six 1.16.0 tables 3.8.0 threadpoolctl 3.1.0 traits 6.4.1 traitsui 8.0.0.dev0 /Users/cyliu/Documents/3.11_test/traitsui urllib3 1.26.15 vtk 9.2.6 wxPython 4.2.0

enthought / mayavi

NameError: name 'file' is not defined. Did you mean: 'filter'? when running mayavi/examples/mayavi/mlab/chemistry.py #1243