How to read and write a file using Django

In this article, you will learn how to read and write file using the Django.

Django is a free, open-source, Python-based framework. It enables fast development of any type of web application. It is secure, maintainable, portable and scalable. The main advantages of using Django are that it has fully loaded common web development tasks, like administration, authentication, site maps etc.

Django File Object

Django provides a file module django.core.files to handle files. This contains built-in classes for basic file handling. So, first we need to import this module package-

from django.core.files import File

The open() function opens the file in the given mode argument, and the write() method is used to write a file, and the read() method is used to read a file. At last, we have closed the file object and file using the close() method.

Here is the complete code to write and read a file. First, we have opened the file 'text.txt' by providing its full path in the open method and giving the write mode argument. The same file is then opened in read mode.

views.py

from django.shortcuts import render
from django.core.files import File
from django.http import HttpResponse

# Create your views here.

def writetofile(request):
    f = open('C:/demo/test.txt', 'w')
    testfile = File(f)
    testfile.write('Welcome to this country')
    testfile.close
    f.close
    return HttpResponse()

def readfile(request):
    f = open('C:/demo/test.txt', 'r')
    if f.mode == 'r':
       contents =f.read()
       print (contents)
    return HttpResponse()   

urls.py

At last, we have added a path to route the page to a particular link.

from django.contrib import admin
from django.urls import path
from demoapp import views

urlpatterns = [
    path('filewrite', views.writetofile),
    path('readfile', views.readfile),
]

When you open 'http://127.0.0.1:8000/filewrite' on the browser, it writes the given text on the file, and on calling 'http://127.0.0.1:8000/readfile', it reads the file content and displays it in the console.

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