notebook has no attribute DEFAULT_STATIC_FILES_PATH

[cinephos]

I had problem installing csoundmagics to my Ubuntu 22.04 system.
The lines

# Copy csound mode in codemirror
dest = os.path.join(notebook.DEFAULT_STATIC_FILES_PATH, "components", "codemirror", "mode", "csound")
if not os.path.exists(dest):
    os.mkdir(dest)
shutil.copy("csound.js", dest)

created an error because notebook has no attribute DEFAULT_STATIC_FILES_PATH

I manually found the correct location to copy csound.js which proved to be:
.../site-packages/nbclassic/static/components/codemirror/mode and create manually the directory csound in order to copy csound.js file.

In the end, I managed to install and run csoundmagics!