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# Python2.x Python os.pipe() Method [ Python OS File/Directory Methods](#) * * * ### Overview The os.pipe() method is used to create a pipe, returning a pair of file descriptors (r, w) for reading and writing, respectively. ### Syntax The syntax for the **pipe()** method is as follows: os.pipe() ### Parameters * None ### Return Value Returns a pair of file descriptors. ### Example The following example demonstrates the use of the pipe() method: #!/usr/bin/python# -*- coding: UTF-8 -*-import os, sys print "The child will write text to a pipe and "print "the parent will read the text written by child..."# file descriptors r, w for reading and writing r, w = os.pipe() processid = os.fork()if processid: # This is the parent process # Closes file descriptor w os.close(w) r = os.fdopen(r) print "Parent reading" str = r.read() print "text =", str sys.exit(0)else: # This is the child process os.close(r) w = os.fdopen(w, 'w') print "Child writing" w.write("Text written by child...") w.close() print "Child closing" sys.exit(0) Executing the above program produces the following output: The child will write text to a pipe and the parent will read the text written by child...Parent reading Child writing Child closing text = Text written by child... [ Python OS File/Directory Methods](#)