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Python | os.getgroups() method
  • Last Updated : 07 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.

All functions in os module raise OSError in the case of invalid or inaccessible file names and paths, or other arguments that have the correct type, but are not accepted by the operating system.

os.getgroups() method in Python is used to get the list of supplementary group ids associated with the current process.

supplementary group IDs: In Unix systems, every user must be a member of at least one group called primary group. It is also possible for a user to be listed as member of additional groups in the relevant entries in the group database. The IDs of these additional groups are called supplementary group IDs

Note: os.getgroups() method is available only on UNIX systems.

Syntax: os.getgroups()

Parameter: No parameter is required

Return Type: This method returns a list which represents the supplementary group IDs associated with the current process

Code: Use of os.getgroups() method

# Python program to explain os.getgroups() method 
# importing os module 
import os
# Get the list of supplementary
# group IDs associated with
# the current process
s_grp_id = os.getgroups()
# Print the list
print("Supplementary group IDs associated with the current process:")
Supplementary group IDs associated with the current process:
[4, 24, 27, 30, 46, 118, 128, 1000]

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