The GUI included with app-laptop/laptop-mode-tools, , fails to launch if dev-python/PyQt5 is not already installed. The laptop-mode-tools ebuild should be updated to depend on that package or provide a USE flag to disable the GUI. Reproducible: Always Steps to Reproduce: 1. # emerge app-laptop/laptop-mode-tools 2. # /usr/sbin/lmt-config-gui Actual Results: # /usr/sbin/lmt-config-gui /usr/share/laptop-mode-tools/lmt.py:94: SyntaxWarning: "is not" with a literal. Did you mean "!="? if self.tooltip is not '': Traceback (most recent call last): File "/usr/share/laptop-mode-tools/lmt.py", line 14, in <module> from PyQt5.QtWidgets import (QWidget, QMessageBox, QVBoxLayout, QHBoxLayout, ModuleNotFoundError: No module named 'PyQt5.QtWidgets' Expected Results: GUI starts Emerging PyQt5 resolves this issue. Tested with app-laptop/laptop-mode-tools-1.74 and dev-python/PyQt5-5.15.10-r1.