Hello there, I'm new here and decided to post something from my short experience as a developer.

A few weeks ago I was working on the software for a Uni project (using a Raspberry Pi to create a combination lock "safe"), and as I was using one of the University's Pi's, I was writing the Python code on my laptop (because University computers don't have Sublime Text), then copying it to the uni computer and ssh into the Pi to run it.

As I had to make a few changes, I decided to use IDLE on the uni computer to do them, but when trying to run the code I couldn't see the changes made. I spent 30 minutes trying to figure out what's wrong and then I realised... I was saving the changes to the local machine, not the version of the file on the Pi.

It was a very frustrating experience..