furas.pl
# prywatne notatki - Python, Linux, Machine Learning, etc.

Some modules have function to catch single char and assign function but they don't have function to catch few chars which create phrase.

This is example uses pynput Listener to catch all pressed chars and keep them in string - and this helps to check if few last chars match some phrase. But it doesn't check if phrase is not part of longer phrase.

from pynput import keyboard

# keep all chars in global variable
all_keys = ""

def on_press(key):
    global all_keys

    try:
        all_keys += key.char

        if all_keys.endswith("open me"):
            print("I open Sesame")

    except AttributeError:
        #print('special key {0} pressed'.format(key))

        # space doesn't have `key.char`
        if key == keyboard.Key.space:
            all_keys += ' '

def on_release(key):
    #print('{0} released'.format(key))
    if key == keyboard.Key.esc:
        # Stop listener
        return False

# Collect events until released
with keyboard.Listener(on_press=on_press, on_release=on_release) as listener:
    # ... other code ...
    listener.join()

On Linux there is program in Python AutoKey which catch text (phrase) and replace it with other text (it is so called "text expansion").

On Windows there is similar program but not in Python AutoHotKey and it is even more powerful then AutoKey because it can use combination of keys with mouse buttons.

Both can be useful to fast putting full code in place of short text (so called "snippets").

Niektóre moduły mają funkcję do przechwycenia pojedyńczego znaku i wywołania funkcji ale nie mają one funkcji do sprawdzenia czy wciśnieto ciąg znaków tworzących pewną frazę.

Oto przykład użycia pynput Listener do przechwycenia wszytkich wciśniętych znaków i trzymania ich w stringu - co pozwala sprawdzić czy kilka ostatnich znaków nie tworzą szukaną …

If you will use Listener to run long-running code directly in current thread then it will block listener and listener will not execute other code. Listener will also not get mouse events from system and these events will wait in queue and listener will get them later and it will …

Jeśli będzie używał Listener do uruchamia w głównym wątku długo trwającego kodu wtedy będzie on blokował listener i nie będzie on mógł wykonywac innego kodu. Listener nie będzie mógł także odbierać od systemu zdarzeń i będą one czekały w kolejne i listener odbierze je później i zdarzenia te mogą uruchomić …

pynput documentation shows examples how to monitoring the keyboard and how to monitoring the mouse

For keyboard it looks similar for this

from pynput import keyboard

# --- functions ---

def on_press(key):
    # some code

def on_release(key):
    # some code

# --- main ---

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

For …

In documentation you can see example for pynput Monitoring The keyboard

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

which blocks code but you can put code between lines

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

    # ... your code ...

    listener.join()

or you can run it …

W dokumentacji można zobaczyć przykład dla Monitoring the keyboard

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

który blokuje kod więc nie może pracować razem z tkinter. Ale kod można wstawić między linie

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

    # ... your code ...

    listener.join()

lub …