Change Python Version in Google Colab

#credit korakot: https://stackoverflow.com/questions/60775160/install-python-3-8-kernel-in-google-colaboratory
# install Anaconda3
!wget -qO ac.sh https://repo.anaconda.com/archive/Anaconda3-2020.07-Linux-x86_64.sh 
!bash ./ac.sh -b

# a fake google.colab library
!ln -s /usr/local/lib/python3.6/dist-packages/google \
       /root/anaconda3/lib/python3.8/site-packages/google

# start jupyterlab, which now has Python3 = 3.8
!nohup /root/anaconda3/bin/jupyter-lab --ip=0.0.0.0&

# access through ngrok, click the link
!pip install pyngrok -q
from pyngrok import ngrok
print(ngrok.connect(8888))

#!pip install kora
#import kora.install.py38

Hi @nguyenvulong , This doesn't seem to work the way it should

I got this thrown at me :

The connection to http://44ee-xx-xxx-xx-xxx.ngrok.io/ was successfully tunneled to your ngrok client, 
but the client failed to establish a connection to the local address [localhost:8000](http://localhost:8000/).

Make sure that a web service is running on [localhost:8000](http://localhost:8000/) and that it is a valid address.

The error encountered was: dial tcp 127.0.0.1:8000: connect: connection refused

that one is outdated and too complicated. You can try other suggestion in stackoverflow and this. Basically they download a notebook, change the kernel spec, reupload it and connect to the py3.8 environment created by conda & ipykernel.