zero-code/python: add django applications notes in operator doc

content/en/docs/zero-code/python/operator.md

@@ -3,7 +3,8 @@
 linkTitle: Operator
 aliases: [/docs/languages/python/automatic/operator]
 weight: 30
-cSpell:ignore: distro grpcio mkdir psutil uninstrumented virtualenv
+cSpell:ignore:
+  PYTHONPATH distro grpcio mkdir myapp psutil uninstrumented virtualenv
 ---
 
 If you run your Python service in Kubernetes, you can take advantage of the
@@ -17,8 +18,8 @@
 #### Libraries with binary wheels
 
 Some Python packages we instrument or need in our instrumentation libraries,
 might ship with some binary code. This is the case, for example, of `grpcio` and
 `psutil` (used in `opentelemetry-instrumentation-system-metrics`).
 
 The binary code is tied to a specific C library version (glibc or musl) and to a
 specific Python version. The
@@ -26,3 +27,13 @@
 provides images for a single Python version based on the glibc C library. If you
 want to use it you might need to build your own image operator Docker image for
 Python auto-instrumentation.
+
+#### Django applications
+
+Applications that run from their own executable like Django requires to set in
+your deployment file two environment variables:
+
+- `PYTHONPATH`, with the path to the Django application root directory, e.g.
+  "/app"
+- `DJANGO_SETTINGS_MODULE`, with the name of the Django settings module, e.g.
+  "myapp.settings"