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Improved error messages in the terminal #3111

@mscolnick

Description

@mscolnick

Description

Can we improve all the error messages that get printed to the terminal. E.g

  • Bad parameters in the CLI or incorrect usage
  • Missing files
  • Missing deps (formatting, docker, package management)
  • General stack traces

Suggested solution

  • More call to actions when missing dependencies (uv or docker or ruff).
  • Colorize stack traces if possible / enabled
  • Remove marimo internal from traces for known exceptions

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