ModuleNotFoundError: No module named 'rest_framework_jwt'

Introduction

The error ModuleNotFoundError: No module named 'rest_framework_jwt' occurs when a Python module or package with the name 'rest_framework_jwt' is not found in your application's environment. This usually happens when the required module is not installed or not available in the Python path.

Error Details

In this case, the error is specifically related to the 'rest_framework_jwt' module. This module is commonly used for JSON Web Token (JWT) authentication with the Django REST Framework.

Solution

To resolve this error, you need to ensure that the 'rest_framework_jwt' module is installed and accessible in your Python environment. Here are the steps to follow:

1. Open your command prompt or terminal.
2. Activate your virtual environment if you are using one.
3. Install the 'rest_framework_jwt' module using pip by running the following command:

   pip install djangorestframework-jwt
   

   This will download and install the module from the PyPI (Python Package Index).
4. After successful installation, you can import and use 'rest_framework_jwt' module in your Django application without encountering the ModuleNotFoundError.

Example

Here is an example that shows how to use the 'rest_framework_jwt' module for JWT authentication in Django REST Framework:

# Import required modules
from rest_framework_jwt.views import obtain_jwt_token
from rest_framework.decorators import api_view

@api_view(['POST'])
def login(request):
    # Obtain the JWT token for authentication
    token = obtain_jwt_token(request)
    
    # Perform further operations with the token
    # ...

In the above example, the obtain_jwt_token function is imported from the 'rest_framework_jwt.views' module. This function is used to obtain the JWT token for authentication when the 'login' endpoint is called.

Note that you may need to configure additional settings and authentication handlers according to your specific application requirements.

Remember to include 'rest_framework_jwt' in your Django settings file (INSTALLED_APPS) as well.

Conclusion

The ModuleNotFoundError: No module named 'rest_framework_jwt' error can be resolved by installing the 'rest_framework_jwt' module and ensuring its presence in the Python environment. This error commonly occurs when using JWT authentication with Django REST Framework and the required module is missing.