I get an error when installing lxml on an Odor 17 project in MacBook M1 chip.
First of all, when installing requirements.txt, an error occurred. So I commented out some lines in the requirements.txt file.

...
#greenlet==1.1.2 ; python_version == '3.10'  # (Jammy)
#greenlet==2.0.2 ; python_version > '3.10'
...
#lxml==4.8.0 ; python_version <= '3.10'
#lxml==4.9.2 ; python_version > '3.10'
...
#reportlab==3.6.8 ; python_version <= '3.10'
#reportlab==3.6.12 ; python_version > '3.10'
...

After installing all package, I try to install manually those packages.

I was able to install greenlet and reportlab packages but, not lxml package.

After a few Google searches, I found this link: https://www.odoo.com/forum/help-1/odoo-17-install-bug-attributeerror-module-lxml-html-clean-has-no-attribute-defs-249918

According this link, the problem is due to lxml version.
So I try to install lxml 4.8.0 version (pip3 install lxml==4.8.0). But I get an other error. Then I ron pip3 install lxml and lxml 5.2.1 was been installed.

When running Odoo project I PyCharm, this error occurred:

Traceback (most recent call last):
  File "/Users/youstra/odoo-server/odoo-bin", line 5, in <module>
    import odoo
  File "/Users/youstra/odoo-server/odoo/__init__.py", line 134, in <module>
    from . import modules
  File "/Users/youstra/odoo-server/odoo/modules/__init__.py", line 8, in <module>
    from . import db, graph, loading, migration, module, registry, neutralize
  File "/Users/youstra/odoo-server/odoo/modules/graph.py", line 11, in <module>
    import odoo.tools as tools
  File "/Users/youstra/odoo-server/odoo/tools/__init__.py", line 24, in <module>
    from .mail import *
  File "/Users/youstra/odoo-server/odoo/tools/mail.py", line 19, in <module>
    from lxml.html import clean
  File "/Users/youstra/odoo-server/venv/lib/python3.12/site-packages/lxml/html/clean.py", line 18, in <module>
    raise ImportError(
ImportError: lxml.html.clean module is now a separate project lxml_html_clean.
Install lxml[html_clean] or lxml_html_clean directly.

When I try pip3 install lxml[html_clean] command, I get on command prompt
zsh: no matches found: lxml[html_clean].

So I try to install lxml_html_clean and the installation was successfully done.

But after this installation, I tried to run Odoo project and I got this error:

Traceback (most recent call last):
  File "/Users/youstra/odoo-server/odoo-bin", line 5, in <module>
    import odoo
  File "/Users/youstra/odoo-server/odoo/__init__.py", line 134, in <module>
    from . import modules
  File "/Users/youstra/odoo-server/odoo/modules/__init__.py", line 8, in <module>
    from . import db, graph, loading, migration, module, registry, neutralize
  File "/Users/youstra/odoo-server/odoo/modules/graph.py", line 11, in <module>
    import odoo.tools as tools
  File "/Users/youstra/odoo-server/odoo/tools/__init__.py", line 24, in <module>
    from .mail import *
  File "/Users/youstra/odoo-server/odoo/tools/mail.py", line 32, in <module>
    safe_attrs = clean.defs.safe_attrs | frozenset(
                 ^^^^^^^^^^
AttributeError: module 'lxml.html.clean' has no attribute 'defs'

I don’t know what can I do to solve this issue.

I’m a new Odoo and Python developper.

Thanks a lot of

• Python version: 3.12
• Odoo version: 17
• iOS version: Sonoma