Error while installing lxml

[Avi30000]

Please someone help to fix this for me.

C:\Python310\python.exe C:\Users\Sequel\Downloads\odoo-16.0\odoo-16.0\odoo-bin -c odoo.conf
Traceback (most recent call last):
File "C:\Users\Sequel\Downloads\odoo-16.0\odoo-16.0\odoo-bin", line 5, in
import odoo
File "C:\Users\Sequel\Downloads\odoo-16.0\odoo-16.0\odoo_init_.py", line 134, in
from . import modules
File "C:\Users\Sequel\Downloads\odoo-16.0\odoo-16.0\odoo\modules_init_.py", line 8, in
from . import db, graph, loading, migration, module, registry, neutralize
File "C:\Users\Sequel\Downloads\odoo-16.0\odoo-16.0\odoo\modules\graph.py", line 10, in
import odoo.tools as tools
File "C:\Users\Sequel\Downloads\odoo-16.0\odoo-16.0\odoo\tools_init_.py", line 24, in
from .mail import *
File "C:\Users\Sequel\Downloads\odoo-16.0\odoo-16.0\odoo\tools\mail.py", line 32, in
safe_attrs = clean.defs.safe_attrs | frozenset(
AttributeError: module 'lxml.html.clean' has no attribute 'defs'

Process finished with exit code 1

[lathama]

The lxml package was broken up recently install lxml-html-clean to fix the issue.

• [17.0] lxml.html.clean module is now a separate project lxml_html_clean docker#498
• https://pypi.org/project/lxml-html-clean/

[lathama]

Related #163429

[lathama]

Related #157950

[lathama]

TL;DR;
Install https://tracker.debian.org/pkg/lxml-html-clean or https://pypi.org/project/lxml-html-clean/

[Avi30000]

Thanks a lot, appreciate it, this is the first time am trying without any knowledge or experience of python, pycharm, etc.

[vava-odoo]

Thanks @lathama

[leio]

Installing python3-lxml-html-clean on e.g. Ubuntu 24.04 LTS is not sufficient, as with it lxml.html.clean.defs does not exist as it's in a separate module now. Odoo should have accessed html.defs instead of clean.defs in the first place in odoo/tools/mail.py, which should work with old lxml as well. I believe clean.defs working with old lxml is more of an accident, as e.g. help(clean.defs) after doing the same imports points at lxml.html.defs documentation.

No PR will be forthcoming from me, as I will not be signing a CLA, but hopefully it helps someone stumbling on this.

[leio]

I found #161366 existing for this already.