Django marshmallow validate error message not translating

Question

I have defined a shema in django project.

gross_weight = fields.Decimal(required=True, validate=validate.Range(min=0, max=9999.99, error=translation.ugettext(INVALID_RANGE_DURATION).format("0", "9999.99")))

Here the error message is not getting translated

But the same thing is getting translated when i call in pre_load or post load functions.

My guess is that the format is putting value first and then the translation is happening.

.po file

msgid "Value must be between {} and {}"
msgstr "आज भारी बारिश का पूर्वानुमान{}  है {}"