Python Intermediate Tutorial #4 - Synchronizing Threads

In today's episode, we are talking about synchronizing threads and how to work with locking and semaphores.

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[Dr.Cosmar]

"They're always doing the same shit" His videos are so professional that this makes me crack a smile.

[pbfjbic]

Oh my gosh, why you are so underrated...Perfect content 👍🏿

[blusham]

To be completely honest i just rewatch your videos in x1, 75 speed just to refresh my memory. So much easier than reading documentation

[dorb]

A GREAT and EASY to understand series of videos - I can't believe I knew this channel for so long but didn't watch those and expand my knowledge till now.
Thanks a lot mannn !

[rodanmuro]

Well, I'm here, only to say, Thanks so much. Simply and beatiful explanation, of an important concept

[zbmhymy]

Great Stuff! Also To Save Time In Writing Try Using F Strings. Instead Of Doing "()".format() You Can Do print(f'{Thread_Num} Was Granted')!

[lazarusmotha]

Just what I was looking for !! Thanks alot for this perfect example

[gbagba]

that was damn impressive. imagine handling connections

[cibelless]

great teacher...excellent way to teach us

[mikehawk]

great tutorial. Thanks a lot helped me

[cisanthony]

thank you! you have clear examples and demo

[yiheyao]

Great video! Thank you!
Question: should I put "global semaphore" when using the semaphore variable in the access() function? Thanks!

[Scheffbuch]

Just saw your Storie an was very interested

[kraschar]

do you recommend watching your videos and taking notes or stopping after each topic and doing some random exercises ?

[phisicist]

how does the lock know which variable is being locked? thanks for the lecture

[aadimanchekar]

one doubt im a newbie so pls correct me... why have u written global x, lock twice in the functions .. can we write it just once outside both the functions??

[eugeneL_NE]

also need a thread pool intro to make this series complete.

[krinaksanghvi]

import threading
import time

x = 8192

def double():
global x
while x < 16384:
x *= 2
print(x)
time.sleep(1)
print("reached max limit")

def half():
global x
while x > 1:
x /= 2
print(x)
time.sleep(1)
print("reached min limit")

t1 =
t2 =

t1.start()
t2.start()



But, my output is printing the half and double values in different lines. Could you help me understand why?

[lawaace]

Though this guy is a god with the keyboard, the keyboard is aside and the monitor aside and still writes faster than me lol

[purplewarrior]

I have a doubt:

Why dont we need to define semaphore as global semaphore in the access function ?

Edit: Im stupid, its because a semaphore is a mutable data type