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Function Details: fileno

Description

Return the underlying file descriptor (an integer).

Extended Description

The fileno() method returns the file descriptor number for the file. File descriptors are small, non-negative integers used to represent opened files in UNIX-like systems.

Function Signature

Module: io

Class: TextIOWrapper

Parameters

Return

Returns an integer representing the file descriptor.

Return Type

int

Output

Explanation

This example demonstrates the basic usage of fileno(). It prints the file descriptor number for the opened file.