py:
from ir.report import Report


class UPRReport(Report):
    __name__ = 'upr.report'


__init__:
in register :

Pool.register(
    UPRReport,
    module='upr', type_="report"


xml:
        <record model="ir.action.report" id="report_upr">
            <field name="name">Unit_Procurement_Request</field>
            <field name="model">upr.upr</field>
<!--  HERE Change -->
            <field name="report_name">upr.upr</field>
<!--  TO -->
            <field name="report_name">upr.report</field>

            <field name="report">upr/upr.odt</field>
        </record>