Python Debugging
Tracebacks, breakpoints, and profiling to fix bugs fast.
- python debug
- breakpoint pdb
- traceback
- cprofile
- logging
Python Debugging
Tracebacks, breakpoints, and profiling to fix bugs fast.
Commands
| Command | What it does |
|---|---|
python -X dev app.py | Dev mode: extra warnings |
breakpoint() | Built-in debugger (pdb) |
python -m pdb app.py | Debugger from the start |
cProfile cumulative run | Find hot functions |
traceback.print_exc() | Log full stack in except blocks |
Example
try:
main()
except Exception:
import traceback; traceback.print_exc()
breakpoint()FAQ
How do I inspect a crashing prod process?
Log tracebacks with structlog/logging plus request IDs; reproduce locally under pdb from the logged input.
print vs logging?
logging with levels and handlers; print debugging never survives to production.
Câu hỏi thường gặp
How do I inspect a crashing prod process?
Log tracebacks with structlog/logging plus request IDs; reproduce locally under pdb from the logged input.
print vs logging?
logging with levels and handlers; print debugging never survives to production.
Python
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Isolate dependencies per project with venv and pinned requirements.
Python Pip Essentials
Install, upgrade, and audit packages with pip like a pro.
Python Basics
Syntax survival kit: variables, loops, f-strings, and errors.
Python Strings
Slice, split, join, and format text efficiently.