So I tried to make a piece of code which has an ‘enemy’ just move to you. It worked until I added some code with button presses moving the character itself. How can I solve this?
I’ve put the code which doesn’t work in bold.
Here is the entire code:

pygame.init()
font = pygame.font.SysFont('Arial', 15)
game = pygame.display.set_mode((800,600))
pygame.display.set_caption("Test lol")
enemy = pygame.image.load("SS Tree 1 Transparent.png")
player = pygame.image.load("SS RML.png")
player_x = 100
player_x2, player_y2 = player.get_size()
player_y = 400
enemy_x = 300
enemy_x2, enemy_y2 = enemy.get_size()
enemy_y = 400
enemy_velocity = 0
player_velocity = 0


while True:
    game.fill((255,0,0))
    game.blit(player, (player_x, player_y))
    game.blit(enemy, (enemy_x, enemy_y))
    enemy_velocity -= 0.1
    player_velocity -= 0.1
    if enemy_y >= 400-enemy_y2:
        enemy_velocity = 0
        enemy_y = 400-enemy_y2
    if player_y >= 400-player_y2:
        player_velocity = 0
        player_y = 400-player_y2
    if player_x > enemy_x:
        enemy_x += 0.1
    elif player_x < enemy_x:
        enemy_x -= 0.1
    if player_y < enemy_y and enemy_velocity == 0 and enemy_y == 400:
        enemy_velocity += 5
        
    keys = pygame.key.get_pressed()
    **if keys[pygame.K_LEFT]:
        print("r")
        player_x -= 1
    if keys[pygame.K_RIGHT]:
        player_x += 1
    if keys[pygame.K_UP] and player_y == 400:
        player_velocity = 5**
    enemy_y -= enemy_velocity
    player_y -= player_velocity
    pygame.display.flip()

I checked another piece of code with the same code in another program, but I didn’t see any differences. That program is working.