问题 I'm using Amazon linux, and I followed some steps for using letsencrypt that easily found in google search, but all it fails with: Error: couldn't get currently installed version for /root/.local/share/letsencrypt/bin/letsencrypt: Traceback (most recent call last): File "/root/.local/share/letsencrypt/bin/letsencrypt", line 7, in <module> from certbot.main import main File "/root/.local/share/letsencrypt/local/lib/python2.7/dist-packages/certbot/main.py", line 11, in <module> import zope