How to stay in python console after executing a file?

Question

Python

By typing $python3 fail1.py) the file is executed and exits the python console.
How to run it so that after its execution you can start driving, as if I just ran $(python3) But all the variables, classes, etc. were from fail1.py.

Answer 1

Read) https://www.rupython.com/python-1197-11217.html