Not able to use keras on google cloud in jupyter notebook

Hello.

Prior to this: I have already installed fast.ai environment on google cloud and it works very fine.

Along with using fast.ai library I also want to write code in keras and I tried installing keras on google cloud using this reference

I skipped “installing cuda” step, because I think it comes installed after installing fast.ai. because in first lecture we have to check for it and it shows positive in my case. After I installed tensorflow and keras using pip3, it does show installed version on terminal but when I try to use them on jupyter notebook it throws error saying “keras module doesn’t exist”.

I am not able to figure out the issue, please help!!