Python-сообщество

from PyQt4 import QtCore, QtGui
class MyThread(QtCore.QThread):
	x = 10 # Атрибут класса
	mutex = QtCore.QMutex() # Мьютекс
	def __init__(self, id, parent=None):
		QtCore.QThread.__init__(self, parent)
		self.id = id
	def run(self):
		self.change_x()
	def change_x(self):
		MyThread.mutex.lock()# Блокируем
		print("x =", MyThread.x, "id =", self.id)
		MyThread.x += 5
		self.sleep(2)
		print("x =", MyThread.x, "id =", self.id)
		MyThread.x += 34
		print("x =", MyThread.x, "id =", self.id)
		MyThread.mutex.unlock()# Снимаем блокировку
class MyWindow(QtGui.QPushButton):
	def __init__(self):
		QtGui.QPushButton.__init__(self)
		self.setText("Запустить")
		self.thread1 = MyThread(1)
		self.thread2 = MyThread(2)
		self.connect(self, QtCore.SIGNAL("clicked()"), self.on_start)
	def on_start(self):
		if not self.thread1.isRunning(): self.thread1.start()
		if not self.thread2.isRunning(): self.thread2.start()
if __name__ == "__main__":
	import sys
	app = QtGui.QApplication(sys.argv)
	window = MyWindow()
	window.setWindowTitle("Использование класса QMutex")
	window.resize(300, 30)
	window.show()