Dear Maintainer,

"httpx" is a key package [0], and as such will also pull in
more other packages int the key_package set

Please also mark these build-dependencies as <!nocheck>.

 python3-anyio,
 python3-certifi,
 python3-chardet,
 python3-h11,
 python3-h2,
 python3-idna,
 python3-sniffio,
 python3-urllib3,

Greetings,

Alexandre


[0] https://release.debian.org/key-packages.html