[Python] Input() that constantly updates

I'd say the easiest way to describe this would be movement. Instead of requiring the user to press Enter after answering the input script,

player_x = 0
player_y = 0
while true:
user_input = str(input(""))
#The user types something and has to press ENTER before the script continues running
if user_input == 'w':
player_y = player_y + 1
elif user_input == 'a':
player_x = player_x - 1
elif user_input == 's':
player_y = player_y - 1
elif user_input == 'd':
player_x = player_x + 1


I also need the script to continue running even with the "input()" actively checking. Instead of requiring the user to press ENTER before the script continues, is there a way for it to actively check if the prompt is NOT EMPTY and run the following script(s) without the user having to press ENTER?

player_x = 0
player_y = 0
while true:
{input() script I dont have that I need}
#The input the user makes is automatically detected without the script pausing while waiting
if user_input == 'w':
player_y = player_y + 1
elif user_input == 'a':
player_x = player_x - 1
elif user_input == 's':
player_y = player_y - 1
elif user_input == 'd':
player_x = player_x + 1


For the following rambling: Key: NU-No Update ; U-Updates by a pixel I need this script because, can you imagine how annoying it would be to play a game and having to go -W- (NU) -Enter- (U) -W- (NU) -Enter- (U) ... and you move a few pixels, instead of just holding down -W- have it automatically smoothly update?

Continue reading...