ImportError: cannot import name _remove_dead_weakref

mihalis's picture

While trying to renew some of the Let's Encrypt certs, I got the following error:

$ ./letsencrypt-auto renew
Error: couldn't get currently installed version for /opt/eff.org/certbot/venv/bin/letsencrypt:
Traceback (most recent call last):
File "/opt/eff.org/certbot/venv/bin/letsencrypt", line 7, in
from certbot.main import main
File "/opt/eff.org/certbot/venv/local/lib/python2.7/site-packages/certbot/main.py", line 6, in
import logging.handlers
File "/usr/lib/python2.7/logging/__init__.py", line 26, in
import sys, os, time, cStringIO, traceback, warnings, weakref, collections
File "/usr/lib/python2.7/weakref.py", line 14, in
from _weakref import (
ImportError: cannot import name _remove_dead_weakref

The solution was to execute the following command:

$ mv /opt/eff.org /tmp

The /opt/eff.org directory will be recreated.

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