8000 [MNT] Typing: Use Literal for set_loglevel by nrnavaneet · Pull Request #30302 · matplotlib/matplotlib · GitHub
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[MNT] Typing: Use Literal for set_loglevel #30302

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nrnavaneet
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This PR addresses part of #30257 by improving type safety and IDE support for set_loglevel.

Changes in this PR:

  • Introduced LogLevel as a TypeAlias in matplotlib.typing, using Literal to restrict accepted values.
  • Updated set_loglevel() in init.py to use LogLevel.

This improves discoverability and static type checking for valid logging levels like "info", "debug", "error", etc.

Related work not included here
MarkerType updates were implemented by @ZPyrolink in #30261
Event type literals for connect methods were contributed by @ZPyrolink in #30275

@nrnavaneet
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Hi all 👋,

I initially attempted to address multiple points from this issue in a single PR, but I realized that it introduced unnecessary complexity, especially for someone like me who is still learning and new to contributing at this scale.

To manage things better and ensure clarity in both review and implementation, I’ve now shifted to handling one fix at a time. I’ve started with set_loglevel as it seemed like a simpler, self-contained change to begin with.

This approach will also help me improve gradually and avoid making mistakes across unrelated parts. Thank you so much for your patience and guidance, it’s really encouraging for a beginner like me 🙏🙂

5C88
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