injected parameter becomes False if release() precedes press()

[kirikumo]

Description
injected parameter becomes False if release() precedes press()

Platform and pynput version
Ubuntu 18.04.6 LTS
pynput 1.8.1

To Reproduce
Run the following code, then press any key once.

Simple Code

from pynput import keyboard
from pynput.keyboard import Key

class Sample:
    def __init__(self):
        self.listener = keyboard.Listener(
            on_press=self.on_press,
            on_release=self.on_release,
        )
        self.kbc = keyboard.Controller()
        self.countToStop = 0

    def on_press(self, key, injected):
        print(f'- on_press: key: {key}, injected: {injected}')

        if injected:
            return

        self.kbc.release(Key.ctrl)
        self.kbc.press(Key.ctrl)

        # prevent infinite loop
        self.countToStop += 1
        if self.countToStop >= 20:
            #  release line 20 press
            self.kbc.release(Key.ctrl)
            print('Stop Script')
            self.listener.stop()

    def on_release(self, key, injected):
        print(f'-- on_release: key: {key}, injected: {injected}')

    def run(self):
        self.listener.start()
        self.listener.join()


sample = Sample()
sample.run()

Output:
Pressed the ALT key on the physical keyboard.

python sample_script.py 
-- on_release: key: Key.enter, injected: False
- on_press: key: Key.alt, injected: False    <---- my press
-- on_release: key: Key.ctrl, injected: True
- on_press: key: Key.ctrl, injected: True
- on_press: key: Key.ctrl, injected: False
-- on_release: key: Key.ctrl, injected: True
- on_press: key: Key.ctrl, injected: True
-- on_release: key: Key.ctrl, injected: False
- on_press: key: Key.ctrl, injected: False
-- on_release: key: Key.ctrl, injected: True
- on_press: key: Key.ctrl, injected: True
-- on_release: key: Key.ctrl, injected: False
- on_press: key: Key.ctrl, injected: False
-- on_release: key: Key.ctrl, injected: True
- on_press: key: Key.ctrl, injected: True
-- on_release: key: Key.ctrl, injected: False
- on_press: key: Key.ctrl, injected: False
-- on_release: key: Key.ctrl, injected: True
- on_press: key: Key.ctrl, injected: True
-- on_release: key: Key.ctrl, injected: False
- on_press: key: Key.ctrl, injected: False
-- on_release: key: Key.ctrl, injected: True
- on_press: key: Key.ctrl, injected: True
-- on_release: key: Key.ctrl, injected: False
- on_press: key: Key.ctrl, injected: False
-- on_release: key: Key.ctrl, injected: True
- on_press: key: Key.ctrl, injected: True
-- on_release: key: Key.ctrl, injected: False
- on_press: key: Key.ctrl, injected: False
-- on_release: key: Key.ctrl, injected: True
- on_press: key: Key.ctrl, injected: True
-- on_release: key: Key.ctrl, injected: False
- on_press: key: Key.ctrl, injected: False
-- on_release: key: Key.ctrl, injected: True
- on_press: key: Key.ctrl, injected: True
-- on_release: key: Key.ctrl, injected: False
- on_press: key: Key.ctrl, injected: False
-- on_release: key: Key.ctrl, injected: True
- on_press: key: Key.ctrl, injected: True
-- on_release: key: Key.ctrl, injected: False
- on_press: key: Key.ctrl, injected: False
-- on_release: key: Key.ctrl, injected: True
- on_press: key: Key.ctrl, injected: True
-- on_release: key: Key.ctrl, injected: False
- on_press: key: Key.ctrl, injected: False
-- on_release: key: Key.ctrl, injected: True
- on_press: key: Key.ctrl, injected: True
-- on_release: key: Key.ctrl, injected: False
- on_press: key: Key.ctrl, injected: False
-- on_release: key: Key.ctrl, injected: True
- on_press: key: Key.ctrl, injected: True
-- on_release: key: Key.ctrl, injected: False
- on_press: key: Key.ctrl, injected: False
-- on_release: key: Key.ctrl, injected: True
- on_press: key: Key.ctrl, injected: True
-- on_release: key: Key.ctrl, injected: False
- on_press: key: Key.ctrl, injected: False
-- on_release: key: Key.ctrl, injected: True
- on_press: key: Key.ctrl, injected: True
-- on_release: key: Key.ctrl, injected: False
- on_press: key: Key.ctrl, injected: False
-- on_release: key: Key.ctrl, injected: True
- on_press: key: Key.ctrl, injected: True
-- on_release: key: Key.ctrl, injected: False
- on_press: key: Key.ctrl, injected: False
-- on_release: key: Key.ctrl, injected: True
- on_press: key: Key.ctrl, injected: True
-- on_release: key: Key.ctrl, injected: False
- on_press: key: Key.ctrl, injected: False
-- on_release: key: Key.ctrl, injected: True
- on_press: key: Key.ctrl, injected: True
-- on_release: key: Key.ctrl, injected: False
- on_press: key: Key.ctrl, injected: False
-- on_release: key: Key.ctrl, injected: True
- on_press: key: Key.ctrl, injected: True
-- on_release: key: Key.ctrl, injected: False
- on_press: key: Key.ctrl, injected: False
-- on_release: key: Key.ctrl, injected: True
- on_press: key: Key.ctrl, injected: True
-- on_release: key: Key.ctrl, injected: True
Stop Script

[moses-palmer]

Thank you for your report, and I apologise for the late reply!

I can confirm this on Ubuntu 26.04, GNOME. The value of the injected parameter is received directly from Xlib, so this might be difficult to work around in this library.