[英]How to get the return value from pynput.keyboard.Listener Thread?
I would like to get the return value of a function within pynput.keyboard.Listener
.我想在 pynput.keyboard.Listener 中获取
pynput.keyboard.Listener
的返回值。 The only thing I thought it could work was using global variables.我认为它唯一可行的就是使用全局变量。 Also
ThreadPool
, but I think it will not work in this predefine threading.thread from pynput called keyboard.Listener()也是
ThreadPool
,但我认为它不会在这个来自 pynput 的预定义 threading.thread 中工作,称为 keyboard.Listener()
SAMPLE CODE示例代码
message = ' '
keys = []
def write_keys(keys):
global message
for key in keys:
k = str(key).replace(f'{chr(39)}', '')
print(k)
message += k
if len(message) == 10:
return message # return this value
def on_press(key):
global keys
keys.append(key)
write_keys(keys)
keys = []
keyboard_thread = keyboard.Listener(on_press=on_press)
keyboard_thread.start()
#messages = return the message value
If you want to avoid using global
variable.You could use ThreadQueue.如果你想避免使用
global
变量。你可以使用 ThreadQueue。
from pynput import keyboard
from queue import Queue
message = ''
keys = []
queue = Queue()
def write_keys(keys):
global message
for key in keys:
k = str(key).replace(f'{chr(39)}', '')
print(k)
message += k
if len(message) == 10:
queue.put(message)
def on_press(key):
global keys
keys.append(key)
write_keys(keys)
keys = []
keyboard_thread = keyboard.Listener(on_press=on_press)
keyboard_thread.start()
while True:
messages = queue.get()
print(messages)
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