can anyone tell me why the enemy.name works in some parts but not others.

gladiator

#Gladiator by Micaiah Parker

import random
import os

rnd = 1
turn = 1

def enter(): #enter()clears the screen after clicking enter
    input()
    os.system(['clear','cls'][os.name == 'nt'])

def cls(): #clears the screen
    os.system(['clear','cls'][os.name == 'nt'])

def battle():
    while player.life > 0 and enemy.life > 0:
        print("Turn {}".format(turn))
        r = random.randint(0, 1)#Rolls to see who attacks
        if r == 0:#Opponent attacks
            damage = random.randint(0, attx) - random.randint(0, defe)
            if damage < 0: #Prevents life gain glitch
                damage = 0
            player.life = player.life - damage
            print(enemy.name + " Attacks")
            if damage == 0:
                print("You block!")
        if r == 1:#You attack
            damage = random.randint(0, att) - random.randint(0, defex)
            if damage <0: #Prevents life gain glitch
                damage = 0
            enemy.life = enemy.life - damage
            print("You attack!")
            if damage == 0:
                print(enemy.name + " Blocks!")
            turn = turn + 1
            enter()

def begin():
    cls()
    enemy = gladiator()
    print("Round " + str(rnd))
    print(player.name + " VS " + enemy.name)
    enter()
    stats()
    battle()

def afterbat():
    if enemy.life <= 0:
        player.lvl = player.lvl + 1
        player.life = player.lifelock
        enter()
        print("You Win!")
        rnd = rnd + 1
        begin()
    if player.life <= 0:
        print("You Died")
        enter()
                                
class gladiator(): #creates an enemy
    def __init__(self):
        self.name = "Prisoner " + str(rnd)
        self.lvl = random.randint(0, 5)
        self.life = random.randint(50, 100) + self.lvl * 10
        self.att = random.randint(5, 15) + self.lvl
        self.dfnc = random.randint(5, 15) + self.lvl

class player(): #creates the player
    def __init__(self):
        self.name = input("What is your name? ")
        self.lvl = 0
        self.life = random.randint(50, 100) + self.lvl * 10
        self.lifelock = self.life
        self.att = random.randint(5, 15) + self.lvl
        self.dfnc = random.randint(5, 15) + self.lvl

def stats():
    print(player.name + " stats")
    print("Life")
    print(player.life)
    print("Level")
    print(player.lvl)
    print("Attack")
    print(player.att)
    print("Defence")
    print(player.dfnc)
    enter()
    print(enemy.name + " stats")
    print("Life")
    print(enemy.life)
    print("Level")
    print(enemy.lvl)
    print("Attack")
    print(enemy.att)
    print("Defence")
    print(enemy.dfnc)
    enter()

player = player()
begin()
afterbat()