One of our customers is receiving emails with headers and attachments encoded using the "iso-8859-8-i" charset instead of "iso-8859-8" which is natively supported by Python. Both encoding are using the same character set[^1] and only differ in the way the text is rendered on screen[^2][^3] which is not revelant for Python. Add an alias for iso-8859-8-i so that the emails that this customer receive stop failing in Odoo. Note that there is a PR opened on CPython for exactly that, see [bpo-18624]. opw-3653210 [bpo-18624]: https://bugs.python.org/issue18624 [^1]: https://encoding.spec.whatwg.org/#legacy-single-byte-encodings [^2]: <data:text/html;charset=iso-8859-8,hello%20%E0%E1%E2%E3> [^3]: <data:text/html;charset=iso-8859-8-i,hello%20%E0%E1%E2%E3> closes odoo/odoo#150467 X-original-commit: 5a025467a605ca4fa963b79bae254c823518d54c Signed-off-by: Julien Castiaux (juc) <juc@odoo.com>