[Python] It wont give a proper Out (new to python) [closed]

It gives an unexpected error, "Magnitude of verctor A <function Magnitude_vector at 0x100220fe0>"

Really new to python so please forgive me for triggering the pros

import numpy as np
def vector (X , Y, Z):
X = int
Y = int
Z = int
return np.array([X , Y, Z])


Vector_A = np.array(input("Enter Your vector in X op Y op Z"))

def Magnitude_vector(A):
A = np.array([X, Y, Z])
import math

X = int
Y = int
Z = int

L = math.atan(Y/X)
S = math.sqrt(X*X + Y*Y + Z*Z)
M = (S/L)
print(M)

print ("Magnitude of verctor A", Magnitude_vector)


Should Give an output of 5.05 with input ([3, 4, 5])

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