/usr/share/doc/python-apt/html/_sources/library/apt.cdrom.txt is in python-apt-doc 0.9.3.12.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 | :mod:`apt.cdrom` - Functionality like in apt-cdrom
====================================================
.. automodule:: apt.cdrom
:members:
|