<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def dbname(self, value):
 """ Set the connection's database name property. Args: value: New name of the database. String. Returns: Nothing. """

        self._dbname = value
        self._connectionXML.set('dbname', value)