Blindly following setup instructions

I decided to blindly follow setup instructions to simulate teaching streamlit to newbies.

Running on ubuntu 18.04, python 3 setup (3.6.x)
started terminal, following the 2 initial instructions

$ pip install streamlit

“pip not found”

so sudo installed python-pip as per recommendation

$ streamlit hello

command not found

No clue on next step or what i should have done differently