24 Threading in python

 

'''

1. Threading is used to run multiple jobs concurrently(at the same time)

2. Using threading module we can achive threading in python.

   target: the function to be executed by thread

   args  : the arguments to be passed to the target function

   name  : We can specify a name to the thread

   join  : Using join function we keep a thread to wait till ending the thread

'''

import threading

import time

def first_fun():

    print(' \n first_thread started')

    time.sleep(5)

    print(' \n first_thread ended')

def second_fun(a,b):

    print(' \n second_thread started')

    time.sleep(5)

    print(' \n second_thread ended')

# print(time.ctime())

# first_fun()

# second_fun(3,4)

# print(time.ctime())

ft = threading.Thread(target=first_fun)

st = threading.Thread(target=second_fun, args=('sriram','chowdary'))

print(time.ctime())

ft.start()

st.start()

st.join()

print(time.ctime())

### Thread count

'''

1. threading.activeCount(): Returns the number of total Python thread that are active. 

'''

import threading

import time

def fun1():

    time.sleep(1)

def fun2():

    print(' \n Total threads count is :::::', threading.activeCount())

t1 = threading.Thread(target=fun1)

t2 = threading.Thread(target=fun2)

t1.start()

t2.start()

### get thread names

'''

1. threading.currentThread(): Returns the currentThread object

'''

import threading

import time

def fun1():

    print(' \n Fun1 thread name is :::::', threading.currentThread().getName())

def fun2():

    print(' \n Fun2 thread name is :::::', threading.currentThread().getName())

t1 = threading.Thread(target=fun1, name='ADD')

t2 = threading.Thread(target=fun2, name='SUB')

t1.start()

t2.start()