How to access python variables in Sagemaker Jupyter Notebook shell command

Question

In one of the cells of Sagemaker notebook, I've set a variable

region="us-west-2"

In subsequent cell, I run following 2 shell commands

!echo $region

Output

us-west-2

However, unable to run aws shell command using this variable

!aws ecr get-login-password --region $region

$ variable-name doesn't help inside jupyter cell ! shell command

Answer 1

As answered here: https://stackoverflow.com/a/19674648/5157515

There's no direct way to access python variables with ! command.

But with magic command %%bash it is possible

%%bash  -s "$region"
aws ecr get-login-password --region $1

Answer 2

You can now do this using brackets:

region = 'us-east-2'
!echo {region}