Visual Studio Code – Executing several python files on the same interactive prompt on VS Code

I’m transitioning from Spyder to VS Code, and I’m having an issue executing ad-hoc code on an interactive session. I first save this to a tmp1.py and run the selection on an interactive window:

import pandas as pd

df = pd.DataFrame({'a': [1,2,3,4],
                   'b': [1,1,2,3]})

Then on tmp2.py I just write and run:

print(df)

It opens a new interactive window and complains NameError: name 'df' is not defined. How can I configure it to run on the currently active window / session? Note that I’m not using a Jupyter notebook but IPython.

At some point I’ll want to run code in parallel on several terminals, but at first I’d like to get this simple set-up working.