THE WORLD'S LARGEST WEB DEVELOPER SITE

Python Tutorial

Python HOME Python Intro Python Get Started Python Syntax Python Comments Python Variables Python Data Types Python Numbers Python Casting Python Strings Python Booleans Python Operators Python Lists Python Tuples Python Sets Python Dictionaries Python If...Else Python While Loops Python For Loops Python Functions Python Lambda Python Arrays Python Classes/Objects Python Inheritance Python Iterators Python Scope Python Modules Python Dates Python JSON Python RegEx Python PIP Python Try...Except Python User Input Python String Formatting

File Handling

Python File Handling Python Read Files Python Write/Create Files Python Delete Files

Machine Learning

Getting Started Mean Median Mode Standard Deviation Percentile Data Distribution Normal Data Distribution Scatter Plot Linear Regression Polynomial Regression Multiple Regression Scale Train/Test Decision Tree

Python MySQL

MySQL Get Started MySQL Create Database MySQL Create Table MySQL Insert MySQL Select MySQL Where MySQL Order By MySQL Delete MySQL Drop Table MySQL Update MySQL Limit MySQL Join

Python MongoDB

MongoDB Get Started MongoDB Create Database MongoDB Create Collection MongoDB Insert MongoDB Find MongoDB Query MongoDB Sort MongoDB Delete MongoDB Drop Collection MongoDB Update MongoDB Limit

Python Reference

Python Overview Python Built-in Functions Python String Methods Python List Methods Python Dictionary Methods Python Tuple Methods Python Set Methods Python File Methods Python Keywords

Module Reference

Random Module Requests Module

Python How To

Remove List Duplicates Reverse a String

Python Examples

Python Examples Python Exercises Python Quiz Python Certificate

Python File readlines() Method

❮ File Methods


Example

Return all lines in the file, as a list where each line is an item in the list object:

f = open("demofile.txt", "r")
print(f.readlines())
Run example »

Definition and Usage

The readlines() method returns a list containing each line in the file as a list item.

Use the hint parameter to limit the number of lines returned. If the total number of bytes returned exceeds the specified number, no more lines are returned.


Syntax

file.readlines(hint)

Parameter Values

Parameter Description
hint Optional. If the number of bytes returned exceed the hint number, no more lines will be returned. Default value is  -1, which means all lines will be returned.

More examples

Example

Do not return the next line if the total number of returned bytes ar more than 33:

f = open("demofile.txt", "r")
print(f.readline(33))
Run example »

❮ File Methods