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Function Details: readline

Description

Read until newline or EOF and return a single line of text.

Extended Description

The readline() method reads a single line from the file stream. A line is defined as a sequence of characters terminated by a newline ('\n') or EOF. If a size argument is provided, it reads at most size characters.

Function Signature

Module: io

Class: TextIOWrapper

Parameters

Parameter List

size: int

Return

Returns a string containing the line read. Returns an empty string if EOF is hit immediately.

Return Type

str

Output

Explanation

This example demonstrates the basic usage of readline(). It reads and prints the first line of the file.