Django Interview Questions

A function inside a function is called a nested function. Syntax: func function1() { //statements of outer function func function2() { //statements of inner function } }

A cookie is a small piece of information which is stored in the client browser. It is used to store user’s data in a file permanently (or for the specified time). Cookie has its expiry date and time and removes automatically when gets expire. Django provides built-in methods to set and fetch cookie. The set_cookie() …

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A session is a mechanism to store information on the server side during the interaction with the web application. By default, session stores in the database and also allows file-based and cache based sessions.

An exception is an abnormal event that leads to program failure. To deal with this situation, Django uses its exception classes and supports all core Python exceptions as well. Django core exceptions classes are defined in django.core.exceptions module.

To handle URL, django.urls module is used by the Django framework. Let’s open the file urls.py of the project and see the what it looks like: // urls.py from django.contrib import admin from django.urls import path urlpatterns = [ path(‘admin/’, admin.site.urls), ] See, Django already has mentioned a URL here for the admin. The path …

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Two important parameters in signals are: Receiver: It specifies the callback function which connected to the signal. Sender: It specifies a particular sender from where a signal is received.

Signals are pieces of code which contain information about what is happening. A dispatcher is used to sending the signals and listen for those signals.

Django-admin.py: It is a Django’s command line utility for administrative tasks. Manage.py: It is an automatically created file in each Django project. It is a thin wrapper around the Django-admin.py. It has the following usage: It puts your project’s package on sys.path. It sets the DJANGO_SETTING_MODULE environment variable to points to your project’s setting.py file.

The Django field class types specify: The database column type. The default HTML widget to avail while rendering a form field. The minimal validation requirements used in Django admin. Automatic generated forms.

Some usage of middlewares in Django is: Session management, Use authentication Cross-site request forgery protection Content Gzipping