Python scipy: unsupported operand type(s) for ** or pow(): list and list

Python scipy: unsupported operand type(s) for ** or pow(): list and list

It looks like youre after element-wise power-raising?

Like a*x[i]**(b*x[i]) for each i?

In that case, you have to use the np.power function:

def func(x,a,b):
    return a*np.power(x,b*x)

Then it works.

(As an aside, it may be worthwhile to convert x and y from lists to numpy arrays: np.array(x)).

Python scipy: unsupported operand type(s) for ** or pow(): list and list