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Python threading stack_size() Method with Example

Python threading.stack_size() Method: In this tutorial, we will learn about the stack_size() method of threading module in Python with its usage, syntax, and examples. By Hritika Rajput Last updated : April 23, 2023

Python threading.stack_size() Method

The threading.stack_size() is an inbuilt method of the threading module, it is used to return the thread stack size needed while creating new threads.

Module

The following module is required to use stack_size() method:

import threading

Syntax

The following is the syntax of stack_size() method:

stack_size([size])

Parameter(s)

The following are the parameter(s):

• size: It is an optional parameter, which specifies the stack size to be used for subsequently created threads. Its value must be 0 or any positive integer; the default value is 0.

Return Value

The return type of this method is <class 'int'>, it sets the stack size for a thread to be used while creating new threads.

Example of threading.stack_size() Method in Python

# Python program to explain the use of 
# stack_size()  method in Threading Module

import time
import threading

def thread_1(i):
    time.sleep(5)
    print("Value by Thread-1:",i)
    print()

def thread_2(i):
    time.sleep(4)
    print("Value by Thread-2:",i)
    print()
    
def thread_3(i):
    print("Value by Thread-3:",i)
    print()
    
def thread_4(i):
    time.sleep(1)
    print("Value by Thread-4:",i)
    print()        

# Creating sample threads 
thread1 = threading.Thread(target=thread_1, args=(100,))
thread2 = threading.Thread(target=thread_2, args=(200,))
thread3 = threading.Thread(target=thread_3, args=(300,))
thread4 = threading.Thread(target=thread_4, args=(400,))

print(threading.stack_size())

# Starting the threads
thread1.start()
thread2.start()
thread3.start()
thread4.start()

Output

0
Value by Thread-3: 300

Value by Thread-4: 400

Value by Thread-2: 200

Value by Thread-1: 100

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