ODOO V15 CE: module 'lib' has no attribute 'X509_V_FLAG_CB_ISSUER_CHECK'

[luismata01]

When I try to deploy for first time whit this command, for create database and install apps whiout localization

docker-compose run --rm odoo click-odoo-initdb -n devel -m sale_management,account,crm,stock,purchase,point_of_sale,mail,contacts,calendar,mass_editing,web_responsive,web_no_bubble,web_environment_ribbon --no-demo --no-cache

appear this error
AttributeError: module 'lib' has no attribute 'X509_V_FLAG_CB_ISSUER_CHECK'

Affected versions:
ODOO CE v15 on development ambient

Can you help me please

[pleirb]

This error is familiar to me. Try putting cryptography==2.6.1 in the pip.txt

[aleuffre]

I've encountered this problem as well, when trying to use https://github.com/OCA/server-tools/blob/15.0/auto_backup/__manifest__.py

Because the version of pysftp is very old, and there's some incompatibility with the version of cryptography. I ended up removing the module and pysftp entirely, but the suggestion in the comment above of using cryptography==2.6.1 should also work.