Python os.error() Method

1. Syntax of Python os.error() Method
2. Example 1: Use the os.error() Method in Python
3. Example 2: Understanding the os.error() Method in Python

Python os.error() method is an efficient way of finding an inaccessible or invalid file path. It is an alias of the OSError exception.

Sometimes, all methods in the OS module might raise the os.error exception.

Syntax of Python os.error() Method

os.error()

Parameters

This method has no parameters.

Return

There is no return type for this method.

Example 1: Use the os.error() Method in Python

import os

try:
    path = "File.txt"

    fd = os.open(path, os.O_RDWR)

    os.close(fd)

except os.error:
    print("An error has occurred in the file: ", path)

Output:

An error has occurred in the file:  File.txt

The except block is used in the above code to catch any os.error exception.

Example 2: Understanding the os.error() Method in Python

import os

try:
    print(os.ttyname(7))

except os.error as error:

    print(error)

    print("The file descriptor is not linked with any terminal device.")

Output:

[Errno 9] Bad file descriptor
The file descriptor is not linked with any terminal device.

We can use the method os.error() to find out the error in the code. For example, in the above code, the error is associated with a wrong file descriptor.

The method os.ttyname() is used to get the terminal device of a specified file descriptor and raises an error if no match exists.