type         date         name
    ----    ---------------   ------------------------

    file    2023.09.12.1231   covariance.py
    file    2023.09.12.1231   __init__.py
    file    2023.09.12.1231   introspection.py
    file    2023.09.12.1231   _ordered_dict.py
    file    2023.09.12.1231   progress_bar.py
    file    2023.09.12.1231   quad_forms.py
    file    2023.09.12.1231   routines.py
    file    2023.09.12.1231   slideshow.css
    file    2023.09.12.1231   slideshow.py
    file    2023.09.12.1231   _symeig.py
    file    2023.09.12.1231   templet.py
    file    2023.09.12.1231   temporarydir.py