rkern/line_profiler

Health v2 · maintenance only

Flags: no_releases archived no_license

Adoption not part of the score

3585 stars · 254 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

line_profiler is a Python module for line-by-line profiling of functions, and kernprof is a companion script for running it or the standard library's cProfile. This original rkern repository is unmaintained; the official continuation lives at pyutils/line_profiler.

Use cases

• find which line of a Python function is slow
• profile numpy-heavy code that cProfile misses
• time individual lines inside a function
• locate hotspots in scientific computing code
• run cProfile conveniently with kernprof

When to choose

• you need finer granularity than cProfile's function-level timing
• a single line inside a large function is the suspected bottleneck
• you are profiling vectorized numpy operations

When to avoid

• you want an actively maintained version - use pyutils/line_profiler instead
• you only need function-level profiling - cProfile suffices
• you cannot build C extensions and need the old install-from-source flow

Facets

library · maturity abandoned

benchmarking developer-tools cli developer-tools performance python cli cross-platform profiling line-by-line-profiling kernprof performance-analysis unmaintained command-line

Member repositories

For agents

markdown · JSON · MCP: product_card(name="rkern/line_profiler")