Python open() Function

Built-in Function • File I/O

The open() function opens a file, and returns it as a file object.

Syntax

open(file, mode)

Parameter Description

file Required. The path and name of the file

Parameter	Description
`file`	Required. The path and name of the file
`mode`	Optional. A string, defined which mode you want to open the file in: "r" - Read - Default value. Opens a file for reading, error if the file does not exist "a" - Append - Opens a file for appending, creates the file if it does not exist "w" - Write - Opens a file for writing, creates the file if it does not exist "x" - Create - Creates the specified file, returns an error if the file exists "t" - Text - Default value. Text mode "b" - Binary - Binary mode (e.g. images)

mode

Optional. A string, defined which mode you want to open the file in:

"r" - Read - Default value. Opens a file for reading, error if the file does not exist
"a" - Append - Opens a file for appending, creates the file if it does not exist
"w" - Write - Opens a file for writing, creates the file if it does not exist
"x" - Create - Creates the specified file, returns an error if the file exists
"t" - Text - Default value. Text mode
"b" - Binary - Binary mode (e.g. images)

A file object.

Using the open() function:

Output

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