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Django is a high-level Python web framework that encourages rapid development and clean, pragmatic design. It is known for its simplicity, flexibility, reliability, and scalability. Django is used to build web applications quickly and with less code, thanks to its 'batteries-included' philosophy, which provides a plethora of built-in features.
When working with Django, you might encounter the error: ModuleNotFoundError: No module named 'app_name'
. This error typically occurs when Django cannot locate the specified application module within your project.
Upon running your Django project, the server fails to start, and you see an error message indicating that a module named 'app_name' cannot be found. This prevents your application from functioning correctly.
The ModuleNotFoundError
is a Python error that occurs when the interpreter is unable to locate a module specified in your code. In the context of Django, this often means that the application you are trying to use is not properly installed or referenced in your project settings.
INSTALLED_APPS
setting in your settings.py
file.To resolve this error, follow these steps:
Ensure that the app is installed in your Python environment. You can check this by running:
pip list
If the app is not listed, install it using:
pip install app_name
Open your settings.py
file and ensure the app is included in the INSTALLED_APPS
list. It should look something like this:
INSTALLED_APPS = [
...
'app_name',
...
]
Double-check the spelling of the app name in both your settings.py
and the directory structure of your project. The name should match exactly.
For more information on Django settings, you can refer to the official Django documentation. If you need help with Python package management, consider reading the Python Packaging User Guide.
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