vulture finds unused code in Python programs. It is useful for cleaning up and finding errors in large code bases.

• pandas-stubs

• pytype

• pytest

Lint Python Scripts

ruff

ruff is an extremely fast Python linter, written in Rust.

pylint

pylint

flake8

flake8

1. Flake8 focus on logical errors rather than stylistic errors …

Things on this page are fragmentary and immature notes/thoughts of the author. Please read with your own judgement!

1. Get a minimal example (which does not work) and debug based on it.

References

General Tips on Programming

Things on this page are fragmentary and immature notes/thoughts of the author. Please read with your own judgement!

arthas

arthas

JDK commands

Thread dump: jstack jvm_pid > (use -F if not responding)

Memory dump: jmap -dump:live,format=b,file=.hprof jvm_pid

Heap status: jmap -heap jvm_pid

GC status: jstat …

Things on this page are fragmentary and immature notes/thoughts of the author. Please read with your own judgement!

Debugging

1. pdb

Goodbye Print, Hello Debugger! - Nina Zakharenko - Talk

Unit Testing

1. When separate teams/people are developing different components in a big project and unit testing has to be written before …

Things on this page are fragmentary and immature notes/thoughts of the author. Please read with your own judgement!

Use the %debug Magic

The easiest way to debug a Jupyter notebook is to use the %debug magic command. Whenever you encounter an error or exception, just open a new notebook …