rpi python3.6

rpi-python3.6.sh

# get and extract
curl -O https://www.python.org/ftp/python/3.6.1/Python-3.6.1.tgz
tar zxf Python-3.6.1.tgz
cd Python-3.6.1/
# required libraries that py needs or wants, but doesn't necessarily warn about
# one such message:
#  The necessary bits to build these optional modules were not found:
#  _bz2                  _curses               _curses_panel      
#  _dbm                  _gdbm                 _lzma              
#  _sqlite3              _ssl                  _tkinter           
#  readline
# an example of a post-install error where libssl-dev was needed:
#  pip._vendor.requests.exceptions.SSLError: Can't connect to HTTPS URL because the SSL module is not available.
sudo apt-get install libssl-dev libncursesw5-dev libsqlite3-dev libbz2-dev liblzma-dev libreadline6-dev libdb5.3-dev libgdbm-dev tk8.5-dev
# configure
# do i want to use this? ./configure --enable-optimizations
./configure
# use many processors
make -j8
# altinstall is critical for not messing with the system py
sudo make altinstall