<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def to_python(self):
 """Returns a plain python list and converts to plain python objects all this object's descendants. """

        result = list(self)

        for index, value in enumerate(result):
            if isinstance(value, DottedCollection):
                result[index] = value.to_python()

        return result