Get attribute this way

[King]

Python's getattr, setattr and __getattribute__ commands works fine
with python types.
For example:
print o.__getattribute__("name")
print getattr(o, "name")
This is the easiest way to get an attribute using a string.

In my case the "Node" class load/creates all the attributes from a xml
file.
Example
<Input name="position" type="float" value="0.5"/>
<Input name="color" type="color" value="0,0,0"/>

There are certain atrributes of compound type.
Example:
# Array of colors, Here we are referring first color and second element
(green)
self.gradient.colors[0][1] = 0.5
# Array of floats, referring first element
self.gradient.positions[0] = 1.0

Color, color array and floats are all custom classes.

Now question is how to get these compound attributes using string as
we do with default singular attributes.
Example:
getattr(o, "gradient.colors[0][1] ")
I need this to save the data of nodes->attributes into a custom xml
format, when loading this data back, I create the node first and then
setup values from the saved xml file.

Prashant
Python 2.6.2
Win XP 32