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Python | os.cpu_count() method

  • Last Updated : 25 Jun, 2019

OS module in Python provides functions for interacting with the operating system. OS comes under Python’s standard utility modules. This module provides a portable way of using operating system dependent functionality.

os.cpu_count() method in Python is used to get the number of CPUs in the system. This method returns None if number of CPUs in the system is undetermined.

Syntax: os.cpu_count()

Parameter: No parameter is required.

Return Type: This method returns an integer value which denotes the number of CPUs in the system. None is returned if the number of CPUs is undeterminded.

Code: Use of os.cpu_count() method to get the number of CPUs in the system

# Python program to explain os.cpu_count() method  
# importing os module 
import os
# Get the number of CPUs
# in the system using
# os.cpu_count() method
cpuCount = os.cpu_count()
# Print the number of
# CPUs in the system
print("Number of CPUs in the system:", cpuCount)
Number of CPUs in the system: 4

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