Python | os.write() 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.write()
method in Python is used to write a bytestring to the given file descriptor.
A file descriptor is small integer value that corresponds to a file that has been opened by the current process. It is used to perform various lower level I/O operations like read, write, send etc.
Note: os.write()
method is intended for low-level operation and should be applied to a file descriptor as returned by os.open()
or os.pipe()
method.
Syntax: os.write(fd, str)
Parameter:
fd: The file descriptor representing the target file.
str: A bytes-like object to be written in the file.
Return Type: This method returns an integer value which represents the number of bytes actually written.
Code: Use of os.write() method to write a bytestring to a given file descriptor
import os
path = "/home / ihritik / Documents / GeeksForGeeks.txt"
fd = os. open (path, os.O_RDWR)
s = "GeeksForGeeks: A Computer science portal for Geeks."
line = str .encode(s)
numBytes = os.write(fd, line)
print ( "Number of bytes written:" , numBytes)
os.close(fd)
|
Output:
Number of bytes written: 51
Last Updated :
18 Jun, 2019
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