How can I fix this issue with my python text-based game?

import os
import random
battle = True
nameA = "John"
nameB = "Marcus"
maxhpA = 50
hpA =50 #amount of health
atkA = 5 #attack damage
potA = 10 #potion number
luckA = 30
goldA = 0 #amount of player_gold
maxhpB = 50
hpB =50 #amount of health
atkB = 5 #attack damage
potB = 10 #potion number
luckB = 30
goldB = 0 #amount of player_gold
def draw():
print("XX-----------------------XX")
def clear():
os.system("cls")
clear()
def stop():
input(">")
def healA(amount_healed):
global hpA, maxhpA, nameA
if hpA + amount_healed < maxhpA:
hpA += amount_healed
else:
hpA = maxhpA
print(nameA + "'s HP refilled to " + str(hpA) + "!")
def healB(amount_healed):
global hpB, maxhpB, nameB
if hpB + amount_healed < maxhpB:
hpB += amount_healed
else:
hpB = maxhpB
print(nameB + "'s HP refilled to " + str(hpB) + "!")
def turnA():
global hpA, hpB, atkA, atkB, nameA, nameB, potA, potB
choice = input( nameA + "'s turn >")
if choice == "1":
hpB -= atkA
print(nameA +" attacked!")
print(nameB + " took " + str(atkA) + " damage!")
stop()
if choice == "2":
if random.randint(1,100) < int(luckA):
hpB -= 2*atkA
print()
print(nameA +" preformed a special attack!!")
print(nameB + " took " + str(2*atkA) + " damage!")
stop()
else:
print(nameA + " missed their special attack!")
stop()
if choice == "3":
if potA > 0:
potA -= 1
print(nameA +" used a potion.")
healA(25)
input(">")            
else:
print("No potions!")
stop()    
else: #issue
print("Invalid option!")
turnB()
clear()  
stats()
stop() 
def turnB():
global hpA, hpB, atkA, atkB, nameA, nameB, potA, potB
choice = input( nameB + "'s turn >")
if choice == "1":
hpA -= atkB
print(nameB +" attacked!")
print(nameA + " took " + str(atkB) + " damage!")
stop()
if choice == "2":
if random.randint(1,100) < int(luckB):
hpA -= 2*atkB
print()
print(nameB +" preformed a special attack!!")
print(nameA + " took " + str(2*atkB) + " damage!")
stop()
else:
print(nameB + " missed their special attack!")
stop()
if choice == "3":
if potB > 0:
potB -= 1
print(nameB +" used a potion.")
healB(25)
stop()            
else:
print("No potions!")
stop()
else: # issue is here!
print("Invalid option!")
turnB()
clear()  
stats()
stop()  
def stats():
print("Name:    {0:15}{1}".format(str(nameA), str(nameB)))
print("HP:      {0:15}{1}".format(str(hpA), str(hpB)))
print("ATK:     {0:15}{1}".format(str(atkA), str(atkB)))
print("POTIONS: {0:15}{1}".format(str(potA), str(potB)))
print("LUCK:    {0:15}{1}".format(str(luckA), str(luckB)))
draw()
print("1 - ATTACK")
print("2 - RISKY ATTACK")
print("3 - USE POTION (25HP)")
draw()
while battle:
stats()
turnA()
clear()
stats()
turnB()
clear()

Hello. This is a python text-based game I have been working on. It is very simple but there is an error I just cannot figure out. The game works very simply, player A has their turn, and then player B gets theirs, to be expected.

All the options work fine, but I am getting an error with the "else" parts of the turnA and turnB functions. If you play a move that's invalid, I want the player to have another chance to make their move, but it is causing issues as seen in the image below. every second input is now counted as an invalid input.

Your current code looks similar to this:

    if choice == "1":
        # Do something
    if choice == "2":
        # Do something
    if choice == "3":
        # Do something
    else:
        # Do something

With this syntax, your else statement is applying when the choice is not Option 3. Instead, you should use:

    if choice == "1":
        # Do something
    elif choice == "2":
        # Do something
    elif choice == "3":
        # Do something
    else:
        # Do something

This will step through each choice and then run the else condition if none of the choice options match.

Also whilst you're here, have a read around Python Classes. This project will be a good way to introduce yourself to some new concepts within object oriented programming e.g. storing properties such as HP within objects.