Python | os.mkfifo() method

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.mkfifo() method in Python is used to create a FIFO (a named pipe) named path with the specified mode.

FIFOs are named pipe which can be accessed like other regular files. This method only create FIFO but don’t open it and the created FIFO does exist until they are deleted. FIFOs are generally us as rendezvous between client and “server type processes.

Syntax: os.mkfifo(path, mode = 0o666, *, dir_fd = None)

path: A path-like object representing the file system path. It can be a string or bytes object representing a file path.
mode (optional): A numeric value representing the mode of the FIFO (named pipe) to be created. The default value of mode parameter is 0o666 (octal).
dir_fd (optional): This is a file descriptor referring to a directory.

Note: The ‘*’ in parameter list indicates that all following parameters (Here in our case ‘dir_fd’) are keyword-only parameters and they can be provided using their name, not as a positional parameter.

Return type: This method does not return any value.

Code: Use of os.mkfifo() method





# Python3 program to explain os.mkfifo() method
# importing os module
import os
# Path
path = "./mypipe"
# Mode of the FIFO (a named pipe)
# to be created
mode = 0o600
# Create a FIFO named path
# with the specified mode
# using os.mkfifo() method
os.mkfifo(path, mode)
print("FIFO named '% s' is created successfully." % path)



FIFO named './mypipe' is created successfully.

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