Initializing Python static class attributes in the constructor call
Question: In some Google
[documentation](https://cloud.google.com/appengine/docs/python/tools/protorpc/)
there is the following code (abbreviated for clarity). The class `Note` is
defined and then instantiated with a parameter in the constructor call. I
wasn't aware that attributes could be initialized this way. Is this a native
Python feature or some magic that is happening in the Message superclass?

    
    
    from protorpc import messages
    
    class Note(messages.Message):
    
        text = messages.StringField(1, required=True)
    
    # Import the standard time Python library to handle the timestamp.
    
    note_instance = Note(text = u'Hello guestbook!')
    


Answer: It doesn't work the way you're thinking. The class `Note` inherits from
`Message`. `Message` (or some other class it inherits from) has code in its
`__init__()` method to do this. There's no magic.

