Static files in development in Django - Practice Problems & Coding Challenges

Challenge - 5 Problems

❓ component_behavior

intermediate

How does Django serve static files in development?

In a default Django development setup, what happens when you request a static file like CSS or JavaScript from the browser?

A Django cannot serve static files in development; you must use a separate web server.

B Django requires you to manually copy static files to the templates folder to serve them.

C Django serves static files only if DEBUG is set to False.

D Django automatically serves static files using the staticfiles app and the development server without extra configuration.

💡 Hint

Think about what DEBUG mode does in Django and how static files are handled by the development server.

When DEBUG is True (default in development), Django's runserver automatically serves static files using the staticfiles app. This means you don't need extra setup to see CSS or JS files.

📝 Syntax

intermediate

Correct STATICFILES_DIRS setting syntax

Which of the following is the correct way to define STATICFILES_DIRS in Django settings to include a folder named 'assets' inside your project directory?

A STATICFILES_DIRS = ('assets',)

B STATICFILES_DIRS = [BASE_DIR / 'assets']

C STATICFILES_DIRS = BASE_DIR + '/assets/'

D STATICFILES_DIRS = {'assets'}

💡 Hint

Remember STATICFILES_DIRS expects a list or tuple of paths, and BASE_DIR is a Path object.

STATICFILES_DIRS should be a list or tuple of directories. Using BASE_DIR / 'assets' uses pathlib to join paths correctly.

🔧 Debug

advanced

Why are static files not loading in development?

You have DEBUG=True and static files in your app's static folder, but CSS is not loading in the browser. What is the most likely cause?

A You forgot to add 'django.contrib.staticfiles' to INSTALLED_APPS.

B You did not run 'python manage.py collectstatic' in development.

C You set STATIC_URL to an incorrect value like '/media/'.

D You need to set DEBUG=False to serve static files.

💡 Hint

Check if the app responsible for static files is enabled.

The staticfiles app must be in INSTALLED_APPS for Django to serve static files in development. collectstatic is only needed for production.

🧠 Conceptual

advanced

Role of collectstatic in development vs production

What is the purpose of the 'collectstatic' command and when should you use it?

A It compiles CSS and JavaScript files automatically during development.

B It serves static files directly from the app folders during development.

C It gathers all static files into STATIC_ROOT for production; not needed in development with DEBUG=True.

D It deletes all static files from the project to free space.

💡 Hint

Think about how static files are served differently in development and production.

collectstatic copies all static files into a single folder (STATIC_ROOT) for production servers to serve efficiently. In development, Django serves files directly from app folders.

❓ state_output

expert

What is the value of STATIC_URL after this settings code?

Given the following Django settings snippet, what is the value of STATIC_URL? BASE_DIR = Path(__file__).resolve().parent.parent STATIC_URL = '/static/' if not DEBUG: STATIC_URL = '/assets/'

Django

from pathlib import Path
BASE_DIR = Path(__file__).resolve().parent.parent
DEBUG = True
STATIC_URL = '/static/'
if not DEBUG:
    STATIC_URL = '/assets/'

A /static/

B /assets/

C '' (empty string)

D None

💡 Hint

Check the value of DEBUG and how it affects the if condition.

Since DEBUG is True, the condition 'if not DEBUG' is False, so STATIC_URL remains '/static/'.