def find_descriptor(self, uuid):
        """Return the first child descriptor found that has the specified
        UUID.  Will return None if no descriptor that matches is found.
        """
        for desc in self.list_descriptors():
            if desc.uuid == uuid:
                return desc
        return None
def find_descriptor(self, uuid):
        """Return the first child descriptor found that has the specified
        UUID.  Will return None if no descriptor that matches is found.
        """
        for desc in self.list_descriptors():
            if desc.uuid == uuid:
                return desc
        return None
def find_descriptor ( self , uuid ) : for desc in self . list_descriptors ( ) : if desc . uuid == uuid : return desc return None
Return the first child descriptor found that has the specified
        UUID.  Will return None if no descriptor that matches is found.
Return the first child descriptor found that has the specified UUID . Will return None if no descriptor that matches is found .