python key

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import threading
from win32api import STD_INPUT_HANDLE
from win32console import GetStdHandle, KEY_EVENT, ENABLE_ECHO_INPUT, ENABLE_LINE_INPUT, ENABLE_PROCESSED_INPUT


class KeyAsyncReader():
    def __init__(self):
        self.stopLock = threading.Lock()
        self.stopped = True
        self.capturedChars = ""

        self.readHandle = GetStdHandle(STD_INPUT_HANDLE)
        self.readHandle.SetConsoleMode(ENABLE_LINE_INPUT|ENABLE_ECHO_INPUT|ENABLE_PROCESSED_INPUT)



    def startReading(self, readCallback):
        self.stopLock.acquire()

        try:
            if not self.stopped:
                raise Exception("Capture is already going")

            self.stopped = False
            self.readCallback = readCallback

            backgroundCaptureThread = threading.Thread(target=self.backgroundThreadReading)
            backgroundCaptureThread.daemon = True
            backgroundCaptureThread.start()
        except:
            self.stopLock.release()
            raise

        self.stopLock.release()


    def backgroundThreadReading(self):
        curEventLength = 0
        curKeysLength = 0
        while True:
            eventsPeek = self.readHandle.PeekConsoleInput(10000)

            self.stopLock.acquire()
            if self.stopped:
                self.stopLock.release()
                return
            self.stopLock.release()


            if len(eventsPeek) == 0:
                continue

            if not len(eventsPeek) == curEventLength:
                if self.getCharsFromEvents(eventsPeek[curEventLength:]):
                    self.stopLock.acquire()
                    self.stopped = True
                    self.stopLock.release()
                    break

                curEventLength = len(eventsPeek)



    def getCharsFromEvents(self, eventsPeek):
        callbackReturnedTrue = False
        for curEvent in eventsPeek:
            if curEvent.EventType == KEY_EVENT:
                    if ord(curEvent.Char) == 0 or not curEvent.KeyDown:
                        pass
                    else:
                        curChar = str(curEvent.Char)
                        if self.readCallback(curChar) == True:
                            callbackReturnedTrue = True


        return callbackReturnedTrue

    def stopReading(self):
        self.stopLock.acquire()
        self.stopped = True
        self.stopLock.release()

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Source: stackoverflow.com

Tags: python

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Contributed on Dec 30 2021

0 Answers Avg Quality 2/10

keys in python

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25

car = {
  "brand": "Ford",
  "model": "Mustang",
  "year": 1964
}
# the keys are like variables in dictionary which saves a value

x = car.keys()

print(x)

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Source: Grepper

Tags: python py

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Contributed on Mar 08 2021

Tejas Naik

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keys python dictionary

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2

# Dictionary with three keys
Dictionary1 = {'A': 'Geeks', 'B': 'For', 'C': 'Geeks'}
 
# Printing keys of dictionary
print(Dictionary1.keys())

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Source: www.geeksforgeeks.org

Tags: dictionary d

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Contributed on Feb 03 2023

Comfortable Cow

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dictionary keys python

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1

some_dict.keys()

Popularity 9/10 Helpfulness 4/10 Language python

Source: Grepper

Tags: dictionary d

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Contributed on Oct 29 2023

Innocent Iguana

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dictionary keys python

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my_dict = {"apple": 4, "banana": 2, "orange": 5, "mango": 3}

keys = list(my_dict.keys())
print(keys)

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Contributed on Sep 12 2023

YOU.com

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# keys in python

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# keys in python

List_of_Students = {"Jim" : "Roll-32"+","+ "Priority-First",
                    "Yeasin": "Roll-33"+","+ "Priority-2nd",}

print(List_of_Students["Yeasin"])

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Source: Grepper

Tags: python py

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Contributed on Feb 25 2022

YEASIN ARAFAT

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python dictionary key

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# Creating a sample dictionary
person = {
    'name': 'John',
    'age': 30,
    'gender': 'Male'
}

# Accessing dictionary keys
keys = person.keys()

# Printing the keys
print(keys)

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Contributed on Sep 12 2023

YOU.com

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python key

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