No module named "sendgrid_backend"

Django raises ModuleNotFoundError: No module named 'sendgrid_backend' (a subclass of ImportError) when it tries to load the email backend named in your EMAIL_BACKEND setting and cannot find the sendgrid_backend package on the Python path. The sendgrid_backend module is provided by the third-party package django-sendgrid-v5 — it is not part of Django or the official sendgrid SDK.

What causes "No module named sendgrid_backend"?

Your settings reference the backend, e.g.:

EMAIL_BACKEND = "sendgrid_backend.SendgridBackend"

Django imports that dotted path at send time, so the error appears whenever the package backing it isn't importable. Common reasons:

• The package isn't installed at all. django-sendgrid-v5 was never pip installed, or it's missing from requirements.txt so it wasn't deployed.
• It's installed in a different environment. You installed it globally but run Django inside a virtualenv (or vice versa), or in Docker/CI the install layer doesn't match the runtime layer.
• A typo or wrong package. Installing sendgrid (the official SDK) does not provide sendgrid_backend; that module only comes from django-sendgrid-v5.

Note the class name is SendgridBackend (lowercase "g"), per the project README — but a class-name typo produces a different error (ImportError: ... does not define a SendGridBackend attribute), not "No module named".

How do I fix "No module named sendgrid_backend"?

1. Activate the same environment Django runs in, then install the package:

pip install django-sendgrid-v5

2. Confirm it landed in the right interpreter. Run with the exact Python that runs Django:

python -c "import sendgrid_backend; print(sendgrid_backend.__file__)"

If this raises the same error, your pip and python point at different environments. Use python -m pip install django-sendgrid-v5 to install into the interpreter you're invoking.

3. Set the backend correctly in settings.py (note the casing and the # Python comment):

import os

EMAIL_BACKEND = "sendgrid_backend.SendgridBackend"
SENDGRID_API_KEY = os.environ["SENDGRID_API_KEY"]  # or set directly

4. Pin it for deployment. Add it to requirements.txt so containers and CI install it too:

django-sendgrid-v5

Then rebuild/redeploy and restart the app server (gunicorn/uwsgi/runserver) so the new package is loaded.

The current release supports Python 3.9–3.13 (PyPI). If you're on an unsupported Python, upgrade or pin a compatible version.