Django framework interview questions
Django developers are in high demand.
With so many companies trying to build Django apps, hiring devs is difficult. What’s more, making the wrong hire could cost your company thousands of dollars.
So if you want to hire the best Django developers, you must craft a compelling job description. Then, you need to test the skills and knowledge of the developers who apply to see whether they can meet your demands.
Django framework interview questions can help you test these skills. You’ll get to know your Django developers, and you can dig into their applications.
But what questions should you ask?
Aside from the standard questions like “What have you accomplished?” and “What are your strengths?”, you’ll want to assess your candidate’s knowledge of Django.
And in this blog, you’ll find example Django framework interview questions to help you do this.
Let’s go!
Django framework interview questions and answers
Q: Name some advantages of using Django
- Rich Ecosystem: Django comes with third-party apps which you can easily integrate per your project’s requirements.
- Maturity: Django has been in use for over a decade. In this time, lots of features have been added to make it a robust framework.
- Admin panel: Django provides an admin dashboard that you can use to do basic CRUD operations.
- Plugins: These plugins let developers add various features to apps and leave sufficient space for customization.
- Libraries: Due to the large development community, there’s a large number of libraries for every task.
Q: Explain Django architecture
Django follows the MVT (Model View Template) pattern which is based on the Model View Controller architecture.
It’s slightly different from the MVC pattern as it maintains its own conventions. This means the controller is handled by the framework itself. The template is a presentation layer. It’s a HTML file mixed with Django Template Language (DTL).
The developer provides the model, the view, and the template. They then map it to a URL. Finally, Django serves it to the user.
Q: What are templates in Django?
Templates are a vital part of the Django MVT architecture. They comprise HTML, CSS, and js in which dynamic variables and information are embedded with the help of views. Some constructs are recognized and interpreted by the template engine. The main ones are variables and tags.
A template is rendered with a context. Rendering just replaces variables with their values, present in the context, and processes tags. Everything else remains as it is.
The syntax of the Django template language includes the following four constructs :
- Variables
- Tags
- Filters
- Comments
Q: What is Django ORM?
Django’s ORM (Object Relational Mapper) lets you interact with databases in a more “pythonic” way.
For example, you don’t have to write raw queries. It’s also possible to retrieve, save, delete and perform other operations over the database without writing SQL queries.
It works as an abstraction layer between the models and the database.
Q: What is Jinja templating?
Jinja Templating is a popular templating engine for Python. The latest version is Jinja2.
Some of its features are:
- Sandbox Execution – This is a sandbox (or a protected) framework for automating the testing process
- HTML Escaping – It provides automatic HTML Escaping as <, >, & characters have special values in templates. If you use regular text, these symbols can lead to XSS Attacks, which Jinja deals with automatically.
- Generates HTML templates much faster than default engine
- Easier to debug compared to the default engine
Q: What’s the difference between a project and an app in Django?
A project is the entire Django application, whilst an app is a module inside the project that deals with one specific use case.
For example, a payment system (app) in an eCommerce app (project).
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So these Django framework interview questions and answers should help you hire a Django developer or two for your company.
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