Add webpython + instructions

webpython/README.md

@@ -0,0 +1,47 @@
+Local setup
+===========
+
+1. `git checkout webpython-hybrid`
+2. Make sure to install all dependencies and migrations:
+
+        rake db:migrate
+        bundle install
+
+3. Create a new docker image containing the Turtle library and the i/o wrapper:
+
+        cd webpython
+        docker build -t IMAGE_NAME .
+
+4. Configure your Docker host at `config/docker.yml.erb`. Make sure to add a websocket host, for example like this (this is probably different for you):
+
+        host: tcp://localhost:2375
+        ws_host: ws://localhost:2375
+
+5. Run the CodeOcean server with `rails s -p 3333`
+
+6. Login with admin@example.org (pw: admin) and create a new execution environment picking the newly created Docker image from the dropdown. Set the initial command to:
+
+        cd /usr/lib/python3.4 && python3 webpython.py
+
+7. Create a new exercise for the newly created execution environment with an arbritrary main file.
+8. Implement the exercise. The code below can be used as an example to see the canvas and I/O in action:
+
+        import turtle
+        wn = turtle.Screen()
+        alex = turtle.Turtle()
+
+        # i/o test
+        print("hello!")
+        print("please enter your name")
+        name = input()
+        print("your name is", name)
+
+        # canvas test
+        alex.forward(50)
+        alex.right(90)
+        alex.forward(30)
+        alex.right(90)
+        alex.forward(30)
+
+        wn.mainloop()
+