Odoo 17 issue on Ubuntu 20

Unable to find Wkhtmltopdf on this system

sudo apt-get install wkhtmltopdf  

 

 

Refeferences:
[1] https://www.odoo.com/forum/help-1/wkhtmltopdf-odoo-17-no-logo-or-footer-247715

Odoo change host OS

After copy old directory to new OS(U18 to U20) i got python error:

 fincahuanaco  (e) venv  ~  Software  odoo-17.0  pip3  
Could not find platform independent libraries <prefix>
Could not find platform dependent libraries <exec_prefix>
Consider setting $PYTHONHOME to <prefix>[:<exec_prefix>]
Python path configuration:
 PYTHONHOME = (not set)
 PYTHONPATH = (not set)
 program name = '/home/.../odoo-17.0/venv/bin/python3'
 isolated = 0
 environment = 1
 user site = 1
 import site = 1
 sys._base_executable = '/home/.../odoo-17.0/venv/bin/python3'
 sys.base_prefix = '/usr'
 sys.base_exec_prefix = '/usr'
 sys.platlibdir = 'lib'
 sys.executable = '/home/.../odoo-17.0/venv/bin/python3'
 sys.prefix = '/usr'
 sys.exec_prefix = '/usr'
 sys.path = [
   '/usr/lib/python310.zip',
   '/usr/lib/python3.10',
   '/usr/lib/lib-dynload',
 ]
Fatal Python error: init_fs_encoding: failed to get the Python codec of the filesystem encoding
Python runtime state: core initialized
ModuleNotFoundError: No module named 'encodings'

Current thread 0x00007f8016431740 (most recent call first):
 <no Python frame> 

After execute the following command its solved:

 fincahuanaco  (e) venv  ~  Software  odoo-17.0  1  export PYTHONHOME=/usr/local

 

Odoo Compress/UnCompress

 

 [1]  https://github.com/nodeca/pako 

PoS Cache system

 

[1] Odoo Cache system in PoS https://www.cybrosys.com/blog/how-to-store-values-in-pos-cache-in-odoo-17