import threading

def writer():

global text

while True:

with service:

resource.acquire()

print(f"Writing being done by {threading.current_thread().name}.")

text += f"Writing was done by {threading.current_thread().name}. "

resource.release()

def reader():

global rcount

while True:

with service:

rcounter.acquire()

rcount += 1

if rcount == 1:

resource.acquire()

rcounter.release()

print(f"Reading being done by {threading.current_thread().name}:")

# print(text)

with rcounter:

rcount -= 1

if rcount == 0:

resource.release()

text = "This is some text. "

rcount = 0

rcounter = threading.Lock()

resource = threading.Lock()

service = threading.Lock()

threads = [threading.Thread(target=reader) for i in range(3)] + [

threading.Thread(target=writer) for i in range(2)

]

for thread in threads:

thread.start()