/home/john/.local/lib/python3.8/site-packages/sklearn/decomposition/_nmf.py:1710: ConvergenceWarning: Maximum number of iterations 200 reached. Increase it to improve convergence.
  warnings.warn(
Fri Sep 22 09:57:10 2023

faces_classify_nmf():
  Python version: 3.8.10
  scikit-learn version: 1.3.0
  Match a face to an item in the faces dataset.
  Use nonnegative matrix factorization (nmf).

  Graphics saved as "toy_nmf.png"
  Generate the dataset
  Graphics saved as 'nmf_components.png'
  Graphics saved as 'nmf_component3.png'
  Graphics saved as 'nmf_component7.png'

faces_classify_nmf():
  Normal end of execution.
Fri Sep 22 09:57:24 2023