Learning to debug is one of the most important things you can do as a programmer. Code almost never works first time!

Problems can in two main flavours:

1.  syntax errors- you typed something that Python doesn't recognise

2. logic errors- the code doesn't produce what it was supposed to

Once you have watched the video, click through all the debug exercises listed below. Beware! They get quite difficult towards the end!

Fullscreen version of the tool below: CLICK HERE