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# Python2.x Python os.read() Method [ Python OS File/Directory Methods](#) * * * ### Overview The os.read() method is used to read up to n bytes from a file descriptor fd, returning a string containing the bytes read. If the file descriptor fd corresponds to a file that has reached the end, an empty string is returned. Valid on Unix and Windows. ### Syntax The syntax for the **read()** method is as follows: os.read(fd,n) ### Parameters * **fd** -- File descriptor. * **n** -- Number of bytes to read. ### Return Value Returns a string containing the bytes read. ### Example The following example demonstrates the use of the read() method: #!/usr/bin/python# -*- coding: UTF-8 -*-import os, sys # Open file fd = os.open("f1.txt",os.O_RDWR)# Read text ret = os.read(fd,12)print ret # Close file os.close(fd)print "File closed successfully!!" The output of executing the above program is: This is test File closed successfully!! [ Python OS File/Directory Methods](#)