SUMMARY STEPS TO REPRODUCE 1. In a Python project: Run/Configure Launches Make a new script launch Int the script file field enter pytest Click apply/enter Leave that window and come back. Surprise kdevelop has prepend pytest with /home/foo/bar/path/to/your/project/ OBSERVED RESULT If there was not this prepend than it would simply run python3 -m pytest foobar and everything would be fine... EXPECTED RESULT Computer should never knows better then me what I intend to do with him ;) SOFTWARE/OS VERSIONS Windows: macOS: Linux/KDE Plasma: (available in About System) KDE Plasma Version: KDE Frameworks Version: Qt Version: ADDITIONAL INFORMATION