Make broken loop run again? [duplicate] - python

This question already has answers here:
Detect if key was pressed once
(3 answers)
Closed 2 years ago.
I made a program which prints 'F pressed!' when i press the button 'F'. I don't want it to spam my console with that so I made the While-Loop break after that. How can I make the function run again and make the program not stop working? Or just make the text only appear once everytime I press the button?
import win32api
while True:
keystate = win32api.GetAsyncKeyState(0x46)
if keystate < 0:
print('F pressed!')
break
else:
pass
Thanks

How can I make the function run again and make the program not stop working?
The break statement terminates the loop containing it. Control of the program flows to the statement immediately after the body of the loop.
Therefore, you just remove break and everything is ok.
Or just make the text only appear once everytime I press the button?
If the least significant bit is set, the key was pressed after the
previous call to GetAsyncKeyState.
Try the code sample below:
import win32api
while True:
keystate = win32api.GetAsyncKeyState(0x46)&0x0001
if keystate > 0:
print('F pressed!')

Related

Trying to accept the keyboard input 'R' alone or along side any other amount of keyboard inputs using either keyboard or pygame modules

import keyboard
import pygame
import mouse
import time
def press_X():
time.sleep(0.2)
keyboard.press('x')
time.sleep(0.6)
keyboard.release('x')
print('Command Executed - press_X')
#SA_R_X V_1.0
#------------------------------------------
while True:
try:
keyboard.add_hotkey('r', press_X)
time.sleep(0.5)
break
except:
keyboard.add_hotkey('r', press_X)
time.sleep(0.5)
break
the problem is the code cannot detect if 'r' is pressed when i am holding 'w' and/or 'space'... (well any key really)
I tried to use a try and except to handle a combination of any key + 'r'. But it did not work. All I need is for the code to be able to detect an 'r' input even if I am pressing/ holding another key at the same time. Then after this the code waits 0.2 seconds before holding down the 'x' key for 0.6 seconds and releasing. Any help is appreciated and it would be very helpful if you included a short explanation on where I went wrong and how you fixed it.
The documentation for this module can be found here. This is where all relevant information can be found.
The best way to do this, from my understanding, is to use an alternative function. If you want the program to continue to run, even though the key has not been pressed, then I suggest using the keyboard.on_press_key() function. This would mean that the rest of your program could still run, and your press_X() function could be run as a callback. Here is an example of how this code could be implemented.
import keyboard
import pygame
import mouse
import time
class App:
running = True
def press_X():
time.sleep(0.2)
keyboard.press('x')
time.sleep(0.6)
keyboard.release('x')
print('Command Executed - press_X')
App.running = False
#SA_R_X V_1.0
#------------------------------------------
keyboard.on_press_key('r', lambda x: press_X()) ## Adds an event listener for the r key
## This will stop execution if there is no code after this point
If you want it to stop the program and wait for the r key to be pressed, then you could use keyboard.wait(). This will basically pause your program until the key is pressed, after which your function would be run. For example, to replace the keyboard.on_press_key('r', lambda x: press_X()):
keyboard.wait('r')
press_X()
From my understanding, keyboard.add_hotkey() does not work in your situation because it is looking for an exact combination of keys being pressed, such as Ctrl+C, and will only go if only the keys in the hotkey are pressed.
I hope this helps, good luck!

Keyboard key's pressed a lot of times

I want to create program that check if a is pressed. But for a lot of times, not only one time. I tried using for loop and function but I failed.
import keyboard
def lagun():
while True:
try:
if keyboard.is_pressed('a'):
print('you pressed a')
break
except:
break
Can anyone could tell me how to modify this code to check is a is pressed a lot of times?

tkinter notebook python - click left event [duplicate]

This question already has answers here:
Why is my Button's command executed immediately when I create the Button, and not when I click it? [duplicate]
(5 answers)
Closed 1 year ago.
I want to run function when I click on tabs.
For example,
I have two tabs
def refresh():
if str(notebook.index(notebook.select())) == "2":
refresh2()
else:
refresh1()
notebook.bind("<<NotebookTabChanged>>", refresh())
Doesn't work.
How can I fix it ?
You always need to provide the reference of the function, not call the function. Doing refresh() will call the function. And when the function is executed, the returned value will be assigned. In your case, it is None or nothing.
So, you are basically telling tkinter to do nothing when the "<<NotebookTabChanged>>" event is raised.
def refresh():
if str(notebook.index(notebook.select())) == "2":
refresh2()
else:
refresh1()
notebook.bind("<<NotebookTabChanged>>", refresh)

How to keep pressing certain key for certain amount of time in python?

I am trying to automate android game using python but I end up in a situation where I have to keep pressing CTRL key and use mouse wheel to zoom out.
I installed Pynput and tried this command
keyboard.press('a')
time.sleep(3)
keyboard.release('a')
But it doesn't keep pressing a key for 3 seconds but press only once.
Can anyone pls tell me a simple script, where it will keep pressing CTRL key and use mouse wheel to zoom out?
I'm assuming you want the key to be pressed over and over again rather than being held down (which is what I think your code above is doing).
You got two options that I know of. The easiest, by far, is to use floats alongside sleep, and do something like this:
timer = 0
while timer < 3:
time.sleep(0.1)
timer += 0.1
keyboard.press('a')
This will press the 'a' key every 0.1 seconds until 3 seconds is reached.
Otherwise, you could import the 'threading' module which lets you run code in paralel, and therefore run a loop and a timer simultaneously. This is probably a huge can of worms for what you're trying to do. The code below presses the 'a' key as fast as possible until the three second timer ends, it doesn't exit threads or anything though, which is why this is probably a bad approach:
global_timer = 0
def keep_pressing_a():
while global_timer <= 3:
keyboard.press('a')
def count_to_three():
global global_timer
keep_counting = True
while keep_counting:
time.sleep(1)
global_timer += 1
if global_timer >= 3:
keep_counting = False
threading.Thread(target=count_to_three).start()
threading.Thread(target=something).start()

How does keyboard.is_pressed() work in Python?

I'm trying to figure out when i press 'u' only 1 times, why is it pressing 'w' infinite times. Print functions don't work neither but if i delet the keyboard.press('w') and keyboard.release('w'), the print functions start to work correctly ( it's printing out 4 until i press a button then it prints out the right number and when i release the button it writes out 4 again)
while True:
if keyboard.is_pressed('u'):
keyboard.press('w')
keyboard.release('w')
print(0)
elif keyboard.is_pressed('j'):
#keyboard.press_and_release('s')
print(1)
elif keyboard.is_pressed('k'):
#keyboard.press_and_release('d')
print(2)
elif keyboard.is_pressed('h'):
#keyboard.press_and_release('a')
print(3)
else:
print(4)
keyboard.release('w')
I know that it was a year ago, but I have found this question today.
Sooo, according to the Keyboard API:
keyboard.press(hotkey) emulates pressing a hotkey on keyboard.
keyboard.release(hotkey) emulates releasing a hotkey on keyboard.
A hotkey is an key number, key name, or combination of two or more keys.
keyboard.press_and_release(hotkey) or keyboard.send(hotkey) emulates pressing and releasing a key or hotkey.
Pressing and releasing behaviour depends on values of do_press and do_release when using keyboard.send().
For example:
keyboard.send('space', do_press=True, do_release=True)
will emulate pressing and releasing space key, but:
keyboard.send('space', do_press=False, do_release=True)
will emulate only releasing space key.
keyboard.is_pressed(key) returns True if a specified key has been pressed, and False otherwise
Hope I've helped!

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