test rotate.py

import numpy as np
import scipy.ndimage
import matplotlib.pyplot as plt

before = np.zeros((10,10))

before[5] = 1

# after = np.rot90(before) # uncomment to switch to np.rot90s
after = scipy.ndimage.interpolation.rotate(before, 45)

fig, axs = plt.subplots(1, 2, figsize=(8,4))
axs[0].imshow(before)
axs[1].imshow(after)

plt.show()