Why do I get the ‘loop of ufunc does not support argument 0 of type int’ error for numpy.exp?

I guess your problem occurs because some NumPy functions explicitly require float-type arguments. Your code np.exp(test), however, has type int.

Try forcing it to be float

import numpy as np

your_array = your_array.astype(float)
output = np.exp(your_array)

# OR

def exp_test(x)
  x.astype(float)
  return np.exp(x)

output = exp_test(your_array)