Python oop() Funksie

Maak 'n lêer oop en druk die inhoud uit:

f = open("demofile.txt", "r")
print(f.read())

Definisie en gebruik

Die open()funksie maak 'n lêer oop en gee dit terug as 'n lêervoorwerp.

Lees meer oor lêerhantering in ons hoofstukke oor lêerhantering .

open(file, mode)

Parameter Description

file The path and name of the file

Parameter	Description
file	The path and name of the file
mode	A string, define 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 exist In addition you can specify if the file should be handled as binary or text mode `"t"` - Text - Default value. Text mode `"b"` - Binary - Binary mode (e.g. images)

mode

A string, define 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 exist

In addition you can specify if the file should be handled as binary or text mode

"t" - Text - Default value. Text mode

"b" - Binary - Binary mode (e.g. images)

Leer hoe om lêers oop te maak in ons Lees lêers-tutoriaal

Leer hoe om lêers te skryf/skep in ons Skryf/skep lêers-tutoriaal

Leer hoe om lêers uit te vee in ons Vee lêers-tutoriaal