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Python from your first script to code you can maintain. Start here if you have never programmed.

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Python Testing and Debugging Intermediate Clear filters 3 results
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Fixing ModuleNotFoundError in Python, One Cause at a Time

ModuleNotFoundError has a handful of causes: the wrong Python, an inactive virtual environment, the wrong folder, or a file that shadows a module. Check them in order instead of reinstalling.

5 min read
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Python logging: Replacing print() Before It Gets Out of Hand

print() is for the output a person asked for. logging is for messages about the program: levels you can turn down, a file with times, and tracebacks for errors. Set it up once in main() and use a logger per module.

6 min read
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Diagnose pytest Discovery and src-Layout Import Errors

Separate zero collected tests from an import failure, install into the correct environment, and prove the selected test catches a broken assertion.

4 min read