При попытке открыть web интерфейс возникает ошибка:

The style compilation failed, see the error below. Your recent actions may be the cause, please try reverting the changes you made.

Traceback (most recent call last):
  File "/usr/bin/sassc", line 11, in 
    load_entry_point('libsass==0.18.0', 'console_scripts', 'sassc')()
  File "/usr/lib/python3/site-packages/pkg_resources/__init__.py", line 489, in load_entry_point
    return get_distribution(dist).load_entry_point(group, name)
  File "/usr/lib/python3/site-packages/pkg_resources/__init__.py", line 2793, in load_entry_point
    return ep.load()
  File "/usr/lib/python3/site-packages/pkg_resources/__init__.py", line 2411, in load
    return self.resolve()
  File "/usr/lib/python3/site-packages/pkg_resources/__init__.py", line 2417, in resolve
    module = __import__(self.module_name, fromlist=['__name__'], level=0)
  File "/usr/lib64/python3/site-packages/sassc.py", line 3, in 
    import pysassc
ModuleNotFoundError: No module named 'pysassc'
This error occured while compiling the bundle 'web.assets_common' containing:
    - /web/static/lib/bootstrap/scss/_functions.scss
    - /web/static/lib/bootstrap/scss/_mixins.scss
    - /web/static/src/scss/utils.scss

В сизифе не воспроизводится, поскольку версия пакета python3-module-libsass другая:

# rpm -q python3-module-libsass
python3-module-libsass-0.20.1-alt1.x86_64

# python3 -c "import pysassc"

В p9:

# rpm -q python3-module-libsass
python3-module-libsass-0.18.0-alt1.x86_64

# python3 -c "import pysassc"
Traceback (most recent call last):
  File "<string>", line 1, in <module>
ModuleNotFoundError: No module named 'pysassc'