ModuleNotFoundError: No module named 'opencl'

[bryanbocao]

 import sift_pyocl as sift
  File "/home/<user>/.local/lib/python3.8/site-packages/sift_pyocl/__init__.py", line 32, in <module>
    from .match import MatchPlan
  File "/home/<user>/.local/lib/python3.8/site-packages/sift_pyocl/match.py", line 45, in <module>
    from opencl import ocl, pyopencl
ModuleNotFoundError: No module named 'opencl'

pip install pyopencl

Description: Ubuntu 20.04.5 LTS