Python os.supports_fd Method

Python os.supports_fd Method

  1. Syntax of Python os.supports_fd Method
  2. Example Codes: Use the os.supports_fd Method
  3. Example Codes: Use the os.supports_fd Method on a Few Methods

Python os.supports_fd method is an efficient way of checking if a specific OS module allows a method to use its path parameter as an open fd or not. Many platforms provide various functionality, so open fd as path arguments functionality needs to be checked.

Syntax of Python os.supports_fd Method

os.supports_fd

Parameter

It is a non-callable object, so no parameter is needed.

Return

The return type of this method is a set object representing all the methods in the OS module that allows their path argument to be used as an open file descriptor.

Example Codes: Use the os.supports_fd Method

import os

List = os.supports_fd

print("Following are the method that allows their path parameter to be used as an open fd: ",List)

Output:

Following are the method that allows their path parameter to be used as an open fd:  {<built-in function scandir>, <built-in function statvfs>, <built-in function execve>, <built-in function pathconf>, <built-in function chown>, <built-in function chdir>, <built-in function utime>, <built-in function chmod>, <built-in function listdir>, <built-in function stat>, <built-in function truncate>}

Note that to determine whether any Python method permits using an open file descriptor for its path parameter, we can use the in operator on the supports_fd set.

Example Codes: Use the os.supports_fd Method on a Few Methods

import os

permission = os.stat in os.supports_fd

print("Does it permit that its parameter is used? ", permission)

permission = os.lstat in os.supports_fd

print("Does it permit that its parameter is used? ", permission)

Output:

Does it permit that its parameter is used? True
Does it permit that its parameter is used? False

In the code, we have checked whether the os.stat() method allows its path parameter to be used as an open file descriptor.

Musfirah Waseem avatar Musfirah Waseem avatar

Musfirah is a student of computer science from the best university in Pakistan. She has a knack for programming and everything related. She is a tech geek who loves to help people as much as possible.

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