install python 3.6 in colab
// Cell0: %env PYTHONPATH= // Cell1: %%bash MINICONDA_INSTALLER_SCRIPT=Miniconda3-4.5.4-Linux-x86_64.sh MINICONDA_PREFIX=/usr/local wget https://repo.continuum.io/miniconda/$MINICONDA_INSTALLER_SCRIPT chmod +x $MINICONDA_INSTALLER_SCRIPT ./$MINICONDA_INSTALLER_SCRIPT -b -f -p $MINICONDA_PREFIX