How to make it run immediately by pressing the command key, not by pressing the python enter key.

In the list, I want to write code that moves side by side according to the keyboard a and d keys, but when I execute it, I want to execute it right away when I press the key a and enter it, but what should I enter it. What should I do?

    import random

    from pynput.keyboard import Key, Listener

    myList=['2','4','1','7','5','6','9','3','8','10']
    if__name__=='__main__':
        rand_index = random.randint(0,9)
        myList[rand_index] = '#'

     while True:
        print(myList)
        command=input("command : ")

        if command == 'a' or command == 'A':
            if not rand_index == 0:
             myList[rand_index], myList[rand_index-1] = myList[rand_index-1], myList[rand_index]
             rand_index= rand_index-1

         elif command=='d' or command=='D':
            if not rand_index == 9:
             myList[rand_index], myList[rand_index + 1] = myList[rand_index + 1], myList[rand_index]
             rand_index = rand_index + 1
         elif command=='exit':
            break


    def on_press(key):
        try:
            print(type(key.char))
            if key.char == 'a'or'A':
                print('a pressed')
            elif key. char == 'd'or'D':
                print('d pressed')
        except AttributeError:
            print()


    def on_release(key):
        try:
            print(type(key.char))
            if key == Key.esc:
                return False
            elif key.char == 'a' or 'A':
                print('a released')
            elif key.char == 'd' or 'D':
                print('d released')
            except AttributeError:
                print()

    with Listener(
            on_press=on_press,
            on_release=on_release) as listener:
        listener.join()

python list keyboard-input

2022-09-21 18:42

1 Answers

Why don't you use getch? You can use msvcrt in the window series You can use termios in UNIX/LINUX series.

I modified the below using the source code that you posted. Please refer to it Note: You can check it by opening the cmd instead of the window python idle shell \r is Enter.

Have a nice day

import random
import msvcrt

myList=['2','4','1','7','5','6','9','3','8','10']
if __name__== '__main__':
    rand_index = random.randint(0,9)
    myList[rand_index] = '#'
    _ismoved = 1

while True:
    if(_ismoved == 1):
        print(myList)
        print("command : ")
        _ismoved = 0

    if msvcrt.kbhit():
        command = msvcrt.getwch()

        if command == 'a' or command == 'A':
            if not rand_index == 0:
                myList[rand_index], myList[rand_index-1] = myList[rand_index-1], myList[rand_index]
                rand_index= rand_index-1
                _ismoved = 1

        elif command=='d' or command=='D':
            if not rand_index == 9:
                myList[rand_index], myList[rand_index + 1] = myList[rand_index + 1], myList[rand_index]
                rand_index = rand_index + 1
                _ismoved = 1

        elif command=='\r':
            break

2022-09-21 18:42

If you have any answers or tips

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