kernprofpy

kernprofpy is a Python profiling tool designed to help developers identify performance bottlenecks in their code. It is a fork and continuation of the original `kernprof` project, which was a popular line-by-line profiler for Python. The primary function of kernprofpy is to measure the execution time of individual lines within Python functions, providing detailed insights into where the most time is spent.

To use kernprofpy, users typically decorate the functions they wish to profile with the `@profile` decorator. The `kernprofpy` script is then executed on the Python file containing these decorated functions. The output, by default, is a report that lists each line of the profiled function, its hit count, and the total time spent on that line. This allows for precise identification of slow lines of code that might otherwise be difficult to pinpoint.

kernprofpy offers several command-line options to customize its behavior. For instance, users can specify the output format, control the level of detail in the report, or include or exclude specific modules from profiling. The tool is particularly useful for optimizing computationally intensive tasks, identifying inefficient loops, or understanding the performance characteristics of complex algorithms implemented in Python. Its straightforward usage and detailed output make it a valuable asset for Python performance tuning.