Hi all, In the dark moments of code optimization, line_profiler from Robert Kern (now https://github.com/pyutils/line_profiler) helped me a lot. To ease the usage of this tool I created a GUI, namely "Line Profiler GUI". The installation is just a pip command away (choose your favorite python Qt binding): $ pip install line-profiler-gui[PySide2] $ pip install line-profiler-gui[PyQt5] The code is available on Github: https://github.com/Nodd/lineprofilergui Happy optimization! Joseph