import qplot as qp

import numpy as np

qp.figure('radians', 3, 3)

qp.patch([-1, 1, 1, -1], [-1, -1, 1, 1])

qp.radians()

for a in [0, 90, 180, 270]:

        qp.at(0, 0, phi=a*np.pi/180)

        qp.align('left', 'middle')

        qp.text(f"{a}°", dx=10)

qp.shrink()