Getting extra characters when drawing map inside Python dungeon game

import random
global dimension


def generate_map(num):
    map = [(x,y) for x in range(num) for y in range(num)]
    return map

def init_positions(map):
    player = random.choice(map)
    monster = random.choice(map)
    door = random.choice(map)

    if (player == monster or player == door or monster == door):
        return init_positions(map)
    return player, monster, door


def draw_map(map,player, monster, door):
    tile = '|{}'
    for cell in map:
        if (cell[1] != dimension-1):
            e = ''
        else:
            e = '|\n'
        if cell == player:
            print(tile.format('P'+e), end=e)
        elif cell == monster:
            print(tile.format('M' + e), end=e)
        elif cell == door:
            print(tile.format('D' + e), end=e)
        else:
            print(tile.format('-' + e),end=e)

def get_directions(player):

    directions = ['UP','RIGHT','DOWN','LEFT']
    x, y = player
    if x == 0:
        directions.remove('UP')
    if y == 0:
        directions.remove('LEFT')
    if x == dimension-1:
        directions.remove('DOWN')
    if y == dimension-1:
        directions.remove('RIGHT')
    return directions




print("Welcome to the dungeon!")
print("Choose the dimensions of the dungeon:")
dimension = int(input("> "))
map = generate_map(dimension)

player, monster, door = init_positions(map)

while True:
    if player == monster:
        print('Sorry, you got eaten')
        break
    if player == door:
        print('You escaped!!!')
        break       
    draw_map(map,player, monster, door)
    print('You are at position {}'.format(player))
    available_moves = get_directions(player)
    print('Available moves are {}'.format(available_moves))
    print('Where would you like to go?')
    move = input('>').upper()
    x, y = player
    if move in available_moves:
        if move == 'UP':
            x -= 1
        elif move == 'DOWN': 
            x += 1
        elif move == 'LEFT':
            y -= 1
        else:
            y += 1
    elif move == 'QUIT':
        break
    player = x, y