This document discusses multithreading in Python. It defines multitasking as the ability of an operating system to perform different tasks simultaneously. There are two types of multitasking: process-based and thread-based. A thread is a flow of execution within a process. Multithreading in Python can be achieved by importing the threading module. Multithreading is useful when multiple independent tasks need to be performed. The document outlines three ways to create threads in Python: without creating a class, by extending the Thread class, and without extending the Thread class. The advantages of multithreading include enhanced performance, simplified coding, and better CPU utilization.

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What is Multitasking in Python?
What is a thread?
How to achieve Multithreading in Python?
When to use Multithreading in Python?
How to create Threads in Python?
• Without creating a class
• By extending Thread class
• Without extending Thread class
Advantages of Multithreading
Types of Multitasking

3. What is Multitasking in Python? www.edureka.co/python

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What is
Multitasking in
Python?
Multitasking refers to the ability of an operating system to perform
different tasks at the same time

5. Types of Multitasking www.edureka.co/python

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Types of
Multitasking
Process Based
Multiple threads
running on the same
OS simultaneously.
Example:
Downloading, listening
to songs and playing a
game..
01
Thread Based
Single process
consisting of
separate tasks.
Example: A game of
FIFA consists of
various threads.
.
02
There are two types of multitasking in an OS:
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7. What is a Thread? www.edureka.co/python

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What is a Thread?
Thread 1 Thread2
Main Code
Thread 3 … Thread n

9. How to Achieve Multithreading in Python?www.edureka.co/python

10. Multithreading in Python can be achieved by importing the threading module.
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How to Achieve Multithreading in Python
conda install -c conda-forge tbb
Importing
importthreading
fromthreadingimport*
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11. When to use Multithreading in Python?www.edureka.co/python

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When to use
Multithreading
in Python?
Multithreading in Python can be used
when:
Multiple tasks need to achieved
Tasks do not have interdependency.

13. How to Create Threads in Python? www.edureka.co/python

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How to Create Threads in Python?
01 Without creating a class
02By extending Thread class
03 Without extending Thread class

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Without creating
a class
from threading import *
print(current_thread().getName())
def mt():
print("Child Thread")
child=Thread(target=mt)
child.start()
print("Executing thread name
:",current_thread().getName())

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By extending Thread class
import threading
import time
class mythread(threading.Thread):
def run(self):
for x in range(7):
print("Hi from child")
a = mythread()
a.start()
time.sleep(1)
print("bye",current_thread().getName
())
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Without
extending Thread
class
from threading import *
class ex:
def myfunc(self):
for x in range(7):
print("Child")
myobj=ex()
thread1=Thread(target=myobj.myfunc)
thread1.start()
#threading.active_count()
thread1.join()
thread1.join()
print("done")
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18. Advantages of Multithreading www.edureka.co/python

19. Advantages of
Multithreading
Enhanced performance by decreased development time
Simplified and streamlined program coding
Simultaneous and parallelized occurrence of tasks
Better use of CPU resource
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