Google Colaboratory supports Python version 2.7 and 3.6 I saw an example how to use Swift in Colab a while ago. Today, I happened to run !jupyter-kernelspec list And found a new kernel: IRkernel Available kernels: ir /usr/local/share/jupyter/kernels/ir python2 /usr/local/share/jupyter/kernels/python2 python3 /usr/local/share/jupyter/kernels/python3 swift /usr/local/share/jupyter/kernels/swift Is i