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Flask Academy · Lesson

Toggle Debug and Feature Flags

Switch behavior safely by environment.

Behavior That Changes by Env

Sometimes the same code must act differently per environment. Flags let you switch behavior without rewriting logic.

What Debug Mode Does

Debug mode shows full tracebacks and auto-reloads on code changes. It is a huge help locally and a danger in production.

All lessons in this course

  1. Config Classes per Environment
  2. Load Secrets from Environment Variables
  3. Use dotenv in Development
  4. Toggle Debug and Feature Flags
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