Traceback (most recent call last):
File "/opt/odoo151/odoo/odoo/service/server.py", line 1196, in load_server_wide_modules
odoo.modules.module.load_openerp_module(m)
File "/opt/odoo151/odoo/odoo/modules/module.py", line 396, in load_openerp_module
__import__('odoo.addons.' + module_name)
File "/opt/odoo151/odoo/odoo/addons/base/__init__.py", line 5, in
from . import models
File "/opt/odoo151/odoo/odoo/addons/base/models/__init__.py", line 23, in
from . import ir_mail_server
File "/opt/odoo151/odoo/odoo/addons/base/models/ir_mail_server.py", line 23, in
from urllib3.contrib.pyopenssl import PyOpenSSLContext
File "/usr/lib/python3/dist-packages/urllib3/contrib/pyopenssl.py", line 62, in
from ..packages import six
ImportError: cannot import name 'six'

I have already install package six using this command->sudo apt-get install python-six

but always getting same error cannot import name 'six'

Unable to install odoo 15