How to Wait for a Pressed Key

How do I wait for a pressed key?

In Python 3, use input():

input("Press Enter to continue...")

In Python 2, use raw_input():

raw_input("Press Enter to continue...")

This only waits for the user to press enter though.

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On Windows/DOS, one might want to use msvcrt. The msvcrt module gives you access to a number of functions in the Microsoft Visual C/C++ Runtime Library (MSVCRT):

import msvcrt as m
def wait():
    m.getch()

This should wait for a key press.

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Notes:

In Python 3, raw_input() does not exist.

In Python 2, input(prompt) is equivalent to eval(raw_input(prompt)).

Key press and wait for a fixed amount of time

Here's a simple example using threads.

import threading
import time

# define a thread which takes input
class InputThread(threading.Thread):
    def __init__(self):            
        threading.Thread.__init__(self)
        self.user_input = None

    def run(self):
        self.user_input = input('input something: ')

    def get_user_input(self):
        return self.user_input

# main
it = InputThread()
it.start()
while True:
    print('\nsleeping 1s and waiting for input... ')
    time.sleep(1)
    ui = it.get_user_input()
    if ui != None:
        print('The user input was', ui)
        it = InputThread()
        it.start()

How to make a script wait for a specific key press - Python 3

you can use keyboard.wait(), this wait function will wait until hotkey pressed (in our case 'e')...

while True:
    start = time.time()
    keyboard.wait("e")
    end = time.time()
    time_lapsed = end - start

In case you don't want to start with fresh time every loop, you can move start=time.time() out side of while loop

Wait until keys is pressed in Python

I saw some listeners in web and i found a code that solved my problem

from pynput import keyboard

def on_press(key):
    if key == keyboard.Key.esc:
        return False
    try:
        k = key.char
    except:
        k = key.name
    if k == '[':
        print('Key pressed: ' + k)
        print('continuing...')
    if k == ']':
        print('Key pressed: ' + k)
        print('stoping')
        return False

Link: https://stackoverflow.com/a/43106497/15785950

Pause python script wait for key press

Use keyboard.read_key() as it will block the execution of the rest of code until a keyboard event happens, then returns that event's name or, if missing, its scan code.

import keyboard
import time

def mainmenu():
    print ('1. Scan')
    print ('2. Ping')
    print ('3. Exit')

    while(True):
        a = keyboard.read_key()

        if a == '1' or a == '2':
            print("Option {} was pressed\n".format(a))
        elif a == '3':
            print("Exiting\n")
            exit(0)
        else:
            print("None\n")
            exit(0)

        time.sleep(0.3)

mainmenu()

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