When running letsencrypt-auto for the first time, it installs some packages.
During the installation, the following warning pops up:
Updating letsencrypt and virtual environment dependencies…/home/user/.local/share/letsencrypt/local/lib/python2.7/site-packages/pip/vendor/requests/packages/urllib3/util/ssl.py:90: InsecurePlatformWarning: A true SSLContext object is not available. This prevents urllib3 from configuring SSL appropriately and may cause certain SSL connections to fail. For more information, see https://urllib3.readthedocs.org/en/latest/security.html#insecureplatformwarning.
Reading the description makes it sound as if HTTPS URLs cannot be retrieved in a safe manner with python 2.7.6 unless I install PyOpenSSL.
Is this correct? How do I install it?