PyQt polygon window
PyQt5 >= 5.8
python -m pip install pyqt-polygon-window
setBorderWidth(width: int)
setCornerLength(corner_length: int)
Code Sample
from PyQt5.QtWidgets import QApplication
from pyqt_polygon_window import PolygonWindow
if __name__ == "__main__":
import sys
app = QApplication(sys.argv)
pw = PolygonWindow()
pw.show()
app.exec_()
Result