/usr/lib/python2.7/dist-packages/cssutils/tests/sheets/1ascii.css is in python-cssutils 1.0.2-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 | @charset "ascii";
@import "1inherit-ascii.css";
@import "1utf.css";
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