What would be the appropriate way to update binded-fields without triggering a chain of Changed events?

Considering the following scenario:

Changing StartDate should update Months

Changing EndDate should update Months and ExtraMonths

Changing ExtraDate should update ExtraMonths

Changing Months should update EndDate and ExtraMonths

Changing ExtraMonths should update ExtraDate

The problem is that if for example I edit the EndDate spinbox, it triggers 3 cascading events, which isn’t really necessary.

So right now, I do it like this:

def end_date_changed(self, new_end_date):
        self.spinBox_months.blockSignals(True)   # disable raising a signal
        self.spinBox_months.setValue(Months)     # update Months spinbox without updating EndDate and ExtraMonths
        self.spinBox_months.blockSignals(False)  # re-enable raising signals

        self.spinBox_extra_months.blockSignals(True)
        self.spinBox_extra_months.setValue(Extra_Months)  # update ExtraMonths spinbox without updating ExtraDate
        self.spinBox_extra_months.blockSignals(False)

And the same for plenty others like them.

It seems to me like a bad way of doing it. Is there a better way?