Serve files locally to reproduce client behavior.
Section: Async, Web, and Production Troubleshooting
Start a simple HTTP server for quick testing
bash
bash
python -m http.server 8000Learn the surrounding workflow
Compare similar commands or jump into common fixes when this command is part of a bigger troubleshooting path.
Related commands
Same sheet · prioritizing Async, Web, and Production Troubleshooting
Enable debug mode programmatically
Turn on event loop debugging in code.
Dump stack traces for all threads
Useful when an app appears hung or deadlocked.
Print the current exception traceback
Dump the active exception traceback in an except block.