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 mainFile "/root/.local/share/letsencrypt/local/lib/python2.7/dist-packages/certbot/main.py", line 11, in <module>import zope.componentFile "/root/.local/share/letsencrypt/local/lib/python2.7/dist-packages/zope/component/__init__.py", line 16, in <module>from zope.interface import Interface
ImportError: No module named interface

What I do is:

# git clone https://github.com/letsencrypt/letsencrypt /opt/letsencrypt
# /opt/letsencrypt/letsencrypt-auto --debug

That's it. So I tried to fix this, but dozens of solution that I found all won't worked to me.

Most of them said try this:

unset PYTHON_INSTALL_LAYOUT

But still got same error, nothing changes. And someone said that type this:

pip install --upgrade pip

But after typed that, I can't use pip anymore, it failed with some kind of command not found error, so I had recreated my server again.

I also tried to use CertBot, but it gives me exactly same error!

I'm using Linux 4.4.51-40.58.amzn1.x86_64 x86_64, need a help. I spent almost a day, but nothing progressed.

Every solution that I was found were not worked to me. Any advice will very appreciate it.

Removing certbot directory did the trick for me.

rm -rf /opt/eff.org/certbot/wget https://dl.eff.org/certbot-auto
chmod a+x certbot-auto
sudo ./certbot-auto certonly --standalone -d example.com --no-bootstrap