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The course is a fully interactive 'book' which requires the

user to run code in the provided editor or shell to advance.

Users must run code in the provided editor or shell and answer questions to advance.

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<h3>Debugging</h3>

<h3>EasyDebugging</h3>

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Emulating a professional developing environment, several debuggers are introduced throughout the course, including<ahref="https://github.com/alexmojaki/birdseye">Birdseye</a>,<ahref="http://pythontutor.com/">Python Tutor</a> and<ahref="https://github.com/alexmojaki/snoop">Snoop</a>.

With a single click, users can run powerful debuggers to visualise execution and find problems.

There are three debuggers, each with their own strengths:

<ahref="http://pythontutor.com/">Python Tutor</a>,<ahref="https://github.com/alexmojaki/snoop">Snoop</a>, and

<ahref="https://github.com/alexmojaki/birdseye">Bird's Eye</a> (pictured).

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Tracebacks are more helpful than usual, with several enhancements:

<br>- Highlighting the exact operation that failed, not just the line, using executing

<br>- Tables of local variables and simple expressions evaluated by pure_eval

<br>- Suggestions for fixes provided by DidYouMean

<br>- Beginner friendly explanations provided by friendly-traceback (shown when hovering over the little i icon)

<br>- Showing multiline statements in full thanks to stack_data without showing unnecessary extra lines

Normal Python tracebacks are intimidating to beginners.

futurecoder removes the fear and makes them helpful instead.

<li>Cleaner design with clutter removed</li>

<li>Additional useful information</li>

<li>Novice-friendly explanations and suggestions for fixes</li>

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If a student is stuck, they can try putting the shuffled in the correct order instead.

If a student is stuck trying to solve an exercise, and they've exhausted all the hints,

they can try putting the shuffled solution in the correct order instead.

This ensures they still apply their mind while reducing frustration and cognitive load.

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<h3>Solution Breadcrumbs</h3>

And if they're unable to solve the Parson's Problem (which can be quite hard), they can reveal the solution bit by bit.

As a last resort, students can gradually reveal the solution until they have enough

information to fill in the remaining gaps themselves.