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.
In UNIX-like operating systems, a process group denotes a collection of one or more processes. It is used to control distribution of a signal that is when a signal is directed to a process group, each member of the process group receives the signal. Every process group is uniquely identified using a process group id.
os.getpgrp() method in Python is used to get the current process group id.
os.getsid() method is only available on UNIX platforms.
Parameter: No parameter is required
Return Type: This method returns an integer value which denotes the process group id of the current process.
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