alexmojaki/snoop

Health v2 · maintenance only

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Adoption not part of the score

1461 stars · 42 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

snoop is a Python debugging library that traces function execution via a decorator, logging which lines ran and how local variables changed. It is a more featureful fork of PySnooper and also includes an enhanced print-debugging tool (pp) similar to icecream.

Use cases

• debug why my python function returns wrong values
• trace which lines of code executed and when variables changed
• replace scattered print statements with one decorator
• see a play-by-play log of a function's execution
• debug code in jupyter notebooks
• print variable values with source expressions
• trace subexpression values in an expression

When to choose

• you want quick line-by-line execution tracing without setting up a debugger
• you can't or don't want to use breakpoints (e.g. long-running scripts, servers)
• you want richer output than PySnooper or icecream provide
• you work in IPython/Jupyter and want integrated tracing

When to avoid

• you need a full interactive debugger with breakpoints and stepping
• you need a debugger attached to an IDE with visual inspection
• tracing overhead is unacceptable in performance-critical production code

Facets

library · maturity active

logging developer-tools developer-tools testing python cross-platform debugging print-debugging tracing pysnooper decorator

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