Certbot or letsencrypt command error

NethServer Version: NethServer release 7.4.1708 (Final)
Module: LetsEncrypt

Hi All,
I have found a problem with certbot or letsencrypt command.
When I try to renew the certificate of NS from CLI I have this error:

[root@gateway]# letsencrypt renew
Traceback (most recent call last):
  File "/usr/bin/letsencrypt", line 9, in <module>
    load_entry_point('certbot==0.22.2', 'console_scripts', 'certbot')()
  File "/usr/lib/python2.7/site-packages/pkg_resources/__init__.py", line 480, in load_entry_point
    return get_distribution(dist).load_entry_point(group, name)
  File "/usr/lib/python2.7/site-packages/pkg_resources/__init__.py", line 2693, in load_entry_point
    return ep.load()
  File "/usr/lib/python2.7/site-packages/pkg_resources/__init__.py", line 2324, in load
    return self.resolve()
  File "/usr/lib/python2.7/site-packages/pkg_resources/__init__.py", line 2330, in resolve
    module = __import__(self.module_name, fromlist=['__name__'], level=0)
  File "/usr/lib/python2.7/site-packages/certbot/main.py", line 20, in <module>
    from certbot import client
  File "/usr/lib/python2.7/site-packages/certbot/client.py", line 13, in <module>
    from acme import client as acme_client
  File "/usr/lib/python2.7/site-packages/acme/client.py", line 36, in <module>
  File "/usr/lib/python2.7/site-packages/urllib3/contrib/pyopenssl.py", line 112, in inject_into_urllib3
  File "/usr/lib/python2.7/site-packages/urllib3/contrib/pyopenssl.py", line 147, in _validate_dependencies_met
    raise ImportError("'pyOpenSSL' module missing required functionality. "
ImportError: 'pyOpenSSL' module missing required functionality. Try upgrading to v0.14 or newer.

Currently, the version of pyOpenSSL.x86_64 installed in NS is 0.13.1-3.el7 and I have tried to upgrade to version 0.14 but no package is present from centos streaming for the update.

Does anyone have suggestions for possible solutions?

Hi Pasquale,

did you update your system?

I have pyOpenSSL 0.13.1-3 too and it’s working so I recommend a reinstall of pyopenssl first:

yum reinstall pyOpenSSL

If reinstalling did not work you may try the following:

pip uninstall requests
yum reinstall python-requests

pip uninstall six
yum reinstall python-six

pip uninstall urllib3
yum reinstall python-urllib3



Thanks, Markus
your indications have been useful to solve the problem