# Re: \[PATCH net-next\] Documentation: add pyyaml to requirements.txt

- From: Simon Horman \<horms@kernel.org\>
- Date: 2023-12-24 16:46:25 
- List: netdev
- Page: https://ratatoskr.run/netdev/2023/12/2445104
- Thread: https://ratatoskr.run/netdev/2023/12/2444159/t.md

```text
On Fri, Dec 22, 2023 at 02:36:28PM +0100, Vegard Nossum wrote:
> Commit f061c9f7d058 ("Documentation: Document each netlink family") added
> a new Python script that is invoked during 'make htmldocs' and which reads
> the netlink YAML spec files.
> 
> Using the virtualenv from scripts/sphinx-pre-install, we get this new
> error wen running 'make htmldocs':
> 
>   Traceback (most recent call last):
>     File "./tools/net/ynl/ynl-gen-rst.py", line 26, in <module>
>       import yaml
>   ModuleNotFoundError: No module named 'yaml'
>   make[2]: *** [Documentation/Makefile:112: Documentation/networking/netlink_spec/rt_link.rst] Error 1
>   make[1]: *** [Makefile:1708: htmldocs] Error 2
> 
> Fix this by adding 'pyyaml' to requirements.txt.
> 
> Note: This was somehow present in the original patch submission:
> <https://lore.kernel.org/all/20231103135622.250314-1-leitao@debian.org/>
> I'm not sure why the pyyaml requirement disappeared in the meantime.
> 
> Fixes: f061c9f7d058 ("Documentation: Document each netlink family")
> Cc: Breno Leitao <leitao@debian.org>
> Cc: Jakub Kicinski <kuba@kernel.org>
> Cc: David S. Miller <davem@davemloft.net>
> Cc: Jonathan Corbet <corbet@lwn.net>
> Signed-off-by: Vegard Nossum <redacted>

I think the patch at the link above went through a few revisions
and landed as:

  f061c9f7d058 ("Documentation: Document each netlink family")

And that along the way the requirements.txt update got lost.

Reviewed-by: Simon Horman <horms@kernel.org>
```