Installing package into IDLE

import.py

import subprocess
import sys


subprocess.check_call([sys.executable, "-m", "pip", "install", "arcade"])
# If you wish to reverse the install, uncomment the following line:
# subprocess.check_call([sys.executable, "-m", "pip", "uninstall", "--yes", "arcade"])


try:
    import arcade
    print("Arcade installed 👍")
except ImportError:
    print("Arcade NOT installed 😓")