Data Analysis with Python Projects - Demographic Data Analyzer

Your replit environment isn’t configured correctly, this happens. If you get a strange error like this you can always search this forum, someone else has certainly encountered it.

https://forum.freecodecamp.org/t/scientific-computing-with-python-projects-arithmetic-formatter/644338

Click the three dots “…” in the file menu and select “show hidden files”

Edit .replit

Make sure you have this run = line, it might say something like run = Use run command. Change it to run = "python3 main.py"

Screenshot 2023-07-03 174819