DLDU Counter

import pip
try:
    from pynput import keyboard
except ImportError:
    pip.main(['install', pynput])
    from pynput import keyboard
import subprocess
import os

# Steuerung:

# Numpad 7
# + 5 Punkte

# Numpad 4
# - 5 Punkte

# Numpad 9
# + 3 Punkte

# Numpad 6
# - 3 Punkte

# If Points File does not exist, create a new one
if not os.path.exists("./points.txt"):
    with open("./points.txt", "w") as f:
        f.write("0")

# Adds or Removes 5 Points depending on which Key is pressed
def boss(sign="+"):

    with open("./points.txt", "r") as f:
        points = int(f.readline())

    if sign == "+":
        points += 5
        print(f'''+ 5 Punkte
        Neuer Stand: {points} Punkte.
        ''')
    else:
        points -= 5
        print(f'''- 5 Punkte
        Neuer Stand: {points} Punkte.
        ''')

    if points < 0:
        points = 0

    with open("./points.txt", "w") as f:
        f.write(str(points))

# Adds or Removes 3 Points depending on which Key is pressed
def miniboss(sign="+"):

    with open("./points.txt", "r") as f:
        points = int(f.readline())

    if sign == "+":
        points += 3
        print(f'''+ 3 Punkte
        Neuer Stand: {points} Punkte.
        ''')
    else:
        points -= 3
        print(f'''- 3 Punkte
    Neuer Stand: {points} Punkte.
    ''')

    if points < 0:
        points = 0

    with open("./points.txt", "w") as f:
        f.write(str(points))

# checks every Key that is pressed
def on_press(key):

    try:

        # 103 is NumPad 7       - adds 5 Points
        if key.vk == 103:
            boss()

        # 100 is NumPad 4       - removes 5 Points
        if key.vk == 100:
            boss("-")

        # 105 is NumPad 9       - adds 3 Points
        if key.vk == 105:
            miniboss()

        # 102 is NumPad 6       - aremoves 3 Points
        if key.vk == 102:
            miniboss("-")

    # if there are any Errors, we just ignore it
    except:
        pass

# Little Motivation
print("Auf geht's, viel Erfolg!")

# Infinite Loop to check pressed Keys
while True:
    with keyboard.Listener(on_press=on_press) as listener:
        listener.join()