Why code is throwing error and what should I do to correct it? Code in description

Question

import random

playerhealth = 150
enemyhealth = 200

attack = int(input("Attack!\n[1]Punch\n[2]Kick,[3]Knee,[4]Headbutt"))

damage = [30,90,50,10]
damaged = damage.choice(damage)
def attacks() :
if attack == 1 :
print("You used Punch\n")
global enemyhealth
enemyhealth = enemyhealth - damaged
print("damage to enemy",damaged,"\n")
print(enemyhealth)

elif attack == 2 :
print("You used Kick\n")
global enemyhealth
enemyhealth = enemyhealth - damaged
print("damage to enemy",damaged,"\n")
print(enemyhealth)

elif attack == 3 :
print("You used Knee\n")
global enemyhealth
enemyhealth = enemyhealth - damaged
print("damage to enemy",damaged,"\n")
print(enemyhealth)

elif attack == 4 :
print("You used Headbutt\n")
global enemyhealth
enemyhealth = enemyhealth - damaged
print("damage to enemy",damaged,"\n")
print(enemyhealth)

else :
print("haaaaad")

Answer 1

You are calling global variable again and again in the if statement and elif statement.
You don't need to do that. Just declare the global at the very first of that function and you will not get this error.
https://code.sololearn.com/cA10a8A19A19
By the way,
what are trying to achieve by this line:
damaged = damage.choice(damage)
It will also raise an error.