PyQt version of triangle color picker.
QtColorTriangle widget converted to python bindings with a small modifications and tweaks. Project does not contain only triangle widget everything what repository offers can be found in example.
Project uses Qt.py module (https://pypi.org/project/Qt.py/) which is Python 2 & 3 compatibility wrapper around Qt bindings - PySide, PySide2, PyQt4 and PyQt5.