wget --no-check-certificate https://www.python.org/ftp/python/3.5.1/Python-3.5.1.tgz
tax xfv Python-3.5.1.tgz

apt-get install build-essential tk-dev libncurses5-dev libncursesw5-dev libreadline6-dev libdb5.1-dev libgdbm-dev libsqlite3-dev libssl-dev libbz2-dev libexpat1-dev liblzma-dev zlib1g-dev

mkdir /usr/local/opt
cd Python-3.5.1
./configure --prefix=/usr/local/opt/python-3.5.1
make && make install

cd /usr/bin/
ln -s /usr/local/opt/python-3.5.1/bin/python3 python35
ln -s /usr/local/opt/python-3.5.1/bin/pip3 pip35