CODEWITHSUNDEEP
python
kostinalex
kostinalex

Reputation: 85

Listening to presskey takes a lot of processor speed

While I'm using the code below, python takes 30% of the processor speed. Is there a way to avoid that?

import keyboard  
while True:  
    try:  
        if keyboard.is_pressed('ctrl+shift+m'):  
            print('You Pressed ctrl+shift+m')
            break  
    except:
        break

Upvotes: 0

Views: 58

Answers (3)

acube
acube

Reputation: 117

Using keyboard.wait and while loop works well:

import keyboard

while True:
    keyboard.wait('ctrl+shift+m')
    print('You Pressed ctrl+shift+m')

Upvotes: 0

Joseph Sible-Reinstate Monica
Joseph Sible-Reinstate Monica

Reputation: 48662

is_pressed always returns True or False immediately. It doesn't wait for keys to be pressed or released. Thus, your code is constantly in a loop, checking as often as it can whether those keys are pressed. Instead of is_pressed, use wait:

import keyboard
keyboard.wait('ctrl+shift+m')
print('You Pressed ctrl+shift+m')

Upvotes: 3

Roland Smith
Roland Smith

Reputation: 43533

Your code is spinning in a busy loop.

Add a call to time.sleep(0.1) at the beginning of the while loop. That will check for keypresses approximately 10x per second, and sleep the rest of the time.

Upvotes: -1

Related Questions