The method pipe() creates a pipe and returns a pair of file descriptors (r, w) usable for reading and writing, respectively
Following is the syntax for pipe() method ?
This method returns a pair of file descriptors.
The following example shows the usage of pipe() method.
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()
# This is the parent process
# Closes file descriptor w
r = os.fdopen(r)
print "Parent reading"
str = r.read()
print "text =", str
# This is the child process
w = os.fdopen(w, 'w')
print "Child writing"
w.write("Text written by child...")
print "Child closing"
When we run above program, it produces following result ?
The child will write text to a pipe and
the parent will read the text written by child...
text = Text written by child...