[3.8] bpo-17305: Link to the third-party idna package. (GH-25208) by miss-islington · Pull Request #25211 · python/cpython

Expand Up @@ -1413,6 +1413,9 @@ Applications) and :rfc:`3492` (Nameprep: A Stringprep Profile for Internationalized Domain Names (IDN)). It builds upon the ``punycode`` encoding and :mod:`stringprep`.
If you need the IDNA 2008 standard from :rfc:`5891` and :rfc:`5895`, use the third-party `idna module <https://pypi.org/project/idna/>_`.
These RFCs together define a protocol to support non-ASCII characters in domain names. A domain name containing non-ASCII characters (such as ``www.Alliancefrançaise.nu``) is converted into an ASCII-compatible encoding Expand Down