diff --git a/python/README-content.md b/python/README-content.md
index 2833b8b94..bba0cc045 100644
--- a/python/README-content.md
+++ b/python/README-content.md
@@ -15,18 +15,19 @@ Windows 2000 and later.
 
 ## Create a `Dockerfile` in your Python app project
 
-    FROM python:3
-    COPY . /usr/src/myapp
-    WORKDIR /usr/src/myapp
+    FROM python:3-onbuild
     CMD [ "python", "./your-daemon-or-script.py" ]
 
 or (if you need to use Python 2):
 
-    FROM python:2
-    COPY . /usr/src/myapp
-    WORKDIR /usr/src/myapp
+    FROM python:2-onbuild
     CMD [ "python", "./your-daemon-or-script.py" ]
 
+These images include multiple `ONBUILD` triggers, which should be all you need
+to bootstrap most applications. The build will `COPY` a `requirements.txt` file,
+`RUN pip install` on said file, and then copy the current directory into
+`/usr/src/app`.
+
 You can then build and run the Docker image:
 
     docker build -t my-python-app
diff --git a/python/README.md b/python/README.md
index 2e011ee63..5b216076a 100644
--- a/python/README.md
+++ b/python/README.md
@@ -22,18 +22,19 @@ Windows 2000 and later.
 
 ## Create a `Dockerfile` in your Python app project
 
-    FROM python:3
-    COPY . /usr/src/myapp
-    WORKDIR /usr/src/myapp
+    FROM python:3-onbuild
     CMD [ "python", "./your-daemon-or-script.py" ]
 
 or (if you need to use Python 2):
 
-    FROM python:2
-    COPY . /usr/src/myapp
-    WORKDIR /usr/src/myapp
+    FROM python:2-onbuild
     CMD [ "python", "./your-daemon-or-script.py" ]
 
+These images include multiple `ONBUILD` triggers, which should be all you need
+to bootstrap most applications. The build will `COPY` a `requirements.txt` file,
+`RUN pip install` on said file, and then copy the current directory into
+`/usr/src/app`.
+
 You can then build and run the Docker image:
 
     docker build -t my-python-app