import numpy as np

a = np.array([30000], dtype=np.int16)
wide = a.astype(np.int64) + 10000
print(wide.tolist())
print((0.1 + 0.2) == 0.3)
print(np.isclose(0.1 + 0.2, 0.3, rtol=0, atol=1e-12))