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Here's a preview from my zine, The Pocket Guide to Debugging! If you want to see more comics like this, sign up for my saturday comics newsletter or browse more comics!

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My favourite way to get information about buggy code is to run the buggy code and experiment on it. (Add print statements! Make a tiny change!)

If the bug is happening on your computer every time you run your program: hooray! You’ve reproduced the bug!

An illustration of a smiling stick figure with curly hair. person (thinking): “ok, time to debug! I’ve got my print statements ready to go!”

But if you can’t make the bug happen, you’re left guessing.

An illustration of a sad stick figure with curly hair. person (thinking): “what was variable X set to when the bug happened? guess there’s NO WAY TO KNOW”

cute illustration of a bug: the next page has tips!

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