mutex python

import  threading


mutex  = threading.Lock()
num = 0

def test1(temp):

	global num 
	mutex.acquire()
	for i  in range(temp):
		
		num +=1
		print('test1',num)
	mutex.release()	

		
	




def test2(temp):

	global num 
	mutex.acquire()	
	for i  in range(temp):

		num +=1
		print('test2',num)
	mutex.release()
		
	






def main():




	t1 = threading.Thread(target = test1 , args = (1000000,))
	t2 = threading.Thread(target = test1 , args = (1000000,))
	
	
	
	t1.start()
	
	t2.start()
	print(num)






if __name__  == '__main__':

	main()