Debugging

Finding out why a program does the wrong thing, by reading its error messages, guessing a cause, and checking the guess against the program's real values.

Depth 1 · Foundation

You read a traceback from the bottom, form a hypothesis that explains exactly what went wrong, test it with a print of the real values, cut the program in half to narrow the search, and explain code line by line to find the slip.

Depths of understanding

1
Foundation
You read a traceback from the bottom, form a hypothesis that explains exactly what went wrong, test it with a print of the real values, cut the program in half to narrow the search, and explain code line by line to find the slip.
Opens after
Error messagesA crash's error message and traceback are the first clue in finding most bugs.TestingA failing test is how most bugs are found, and the same idea, a check with a known right answer, is how a guess about a bug is tested.

Your path here

What's still between you and Debugging, depth 1, in the order you can learn it.

Where it fits

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Error messagesProgram Basics Testing

This concept

DebuggingWriting Correct Code

Builds onThis conceptError messagesProgram Basics Testing DebuggingWriting Correct Code