Python | os.device_encoding() 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.device_encoding() method in Python is used to get the encoding of the device associated with the specified file descriptor, if it is connected to a terminal. This method returns None, if the specified file descriptor is not connected to a terminal.

Note: This method is available only on some flavour of UNIX.

Syntax: os.device_encoding(fd)

Parameter:
fd: A file descriptor, whose device encoding is to be queried.

Return Type: This method returns a string value which represents the encoding of the device associated with the specified file descriptor if it is connected to a terminal, otherwise None.

Code: Use of os.device_encoding() method to get the encoding of the device associated with the given file descriptor

# Python program to explain os.device_encoding() method

# importing os module
import os

# File path
path = "/home/ihritik/Desktop/file.txt"

# Open the file and get
# the file descriptor associated
# with it using os.open() method
fd = os.open(path, os.O_RDWR | os.O_CREAT)


# Check if file descriptor fd
# is open and connected
# to a terminal using os.isatty() method
print("Connected to a terminal:", os.isatty(fd))


# Print the encoding of
# the device associated with
# the file descriptor fd
# using os.device_encoding() method
print("Device encoding:", os.device_encoding(fd))


# Open a new pseudo-terminal pair
# using os.openpty() method
# It will return master and slave
# file descriptor for
# pty ( pseudo terminal device) and
# tty ( native terminal device) respectively
master, slave = os.openpty()

# Check if file descriptor master
# is open and connected
# to a terminal using os.isatty() method
print("Connected to a terminal:", os.isatty(master))


# Print the encoding of
# the device associated with
# the file descriptor master
# using os.device_encoding() method
print("Device encoding:", os.device_encoding(master))

Output:

Connected to a terminal: False
Device encoding: None
Connected to a terminal: True
Device encoding: UTF-8