Create an external file in Google Colab Notepad.

Reference: How to upload a file and read Google Colab

1. Put the tool first:google-drive-ocamlfuse

   !apt-get install -y -qq software-properties-common python-software-properties module-init-tools
   !add-apt-repository -y ppa:alessandro-strada/ppa 2>&1 > /dev/null
   !apt-get update -qq 2>&1 > /dev/null
   !apt-get -y install -qq google-drive-ocamlfuse fuse
   from google.colab import auth
   auth.authenticate_user()
   from oauth2client.client import GoogleCredentials
   creds = GoogleCredentials.get_application_default()
   import getpass
   !google-drive-ocamlfuse -headless -id={creds.client_id} -secret={creds.client_secret} < /dev/null 2>&1 | grep URL
   vcode = getpass.getpass()
   !echo {vcode} | google-drive-ocamlfuse -headless -id={creds.client_id} -secret={creds.client_secret}
   

2. Go to the web page to confirm:

   Confirm the authentication of this access. Follow the command that says open link, and you will visit some blue page showing your key. *

3. Re-mount

   !mkdir drive
   !google-drive-ocamlfuse drive
   !ls drive/"Colab Notebooks"
   

this is good.