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Character sequences starting with `\` are interpreted by python as escaped Unicode characters. However, they have other meaning in regular expressions (e.g: "\d"). It seems Python >= 3.12 starts emitting a SyntaxWarning when these escaped sequences are not recognized as valid Unicode characters. An example of these warnings: tools/testing/selftests/net/openvswitch/ovs-dpctl.py:505: SyntaxWarning: invalid escape sequence '\d' Fix all the warnings by flagging literals as raw strings. Signed-off-by: Adrian Moreno <amorenoz@redhat.com> Reviewed-by: Aaron Conole <aconole@redhat.com> Link: https://lore.kernel.org/r/20240416090913.2028475-1-amorenoz@redhat.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the reStructuredText markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.