kernprof

kernprof is a Python module used for profiling code execution. It's part of the `line_profiler` package, which provides detailed line-by-line timing information for Python functions. This allows developers to pinpoint performance bottlenecks within their programs by identifying which specific lines of code are taking the most time to execute.

To use kernprof, you typically decorate the functions you want to profile with `@profile`. Then, you run your script using the `kernprof.py` script provided by the package, specifying the output file for the profiling results. The output file contains statistics for each line within the decorated functions, including the number of times each line was executed, the total time spent on that line, and the time per call.

This detailed information is invaluable for optimizing Python code. Instead of guessing where performance issues might lie, kernprof provides concrete data. Developers can use this to refactor slow sections of code, optimize algorithms, or identify areas where external libraries might be causing delays. It's a straightforward yet powerful tool for anyone looking to improve the speed and efficiency of their Python applications. The `line_profiler` package, which includes kernprof, is easily installable via pip.