$ pyenv install 3.5.3 Downloading Python-3.5.3.tar.xz... -> https://www.python.org/ftp/python/3.5.3/Python-3.5.3.tar.xz Installing Python-3.5.3... ERROR: The Python ssl extension was not compiled. Missing the OpenSSL lib? Please consult to the Wiki page to fix the problem. https://github.com/pyenv/pyenv/wiki/Common-build-problems BUILD FAILED (LinuxMint 18.3 using python-build 1.2.0-8-g785738d) In