def explanation(self):
min_unit = None
for question in self.question.answers:
normalized = convert.to_normalized(question.unit, 1)
if min_unit is None or convert.to_normalized(min_unit, 1) > normalized:
min_unit = question.unit
if min_unit and min_unit != self.unit:
converted_value = convert.convert(self.unit, self.value, min_unit)
if converted_value.magnitude > 0.001:
return convert.format_quantity(converted_value)
else:
# the value is below the required precision so we cannot use it
return None
else:
return None
def normalized_value(self):
return convert.to_normalized(self.unit, self.value)