Two return statements for one method? Python

I have a method which should print reports. There are two reports that are printed using the same method but has different conditions. I have given the if-else condition but some reason the else part is not being executed! Kindly help me with the issue

count = 80
a = 20
if a > count:
    return xyz
else:
    return abc

abc and xyz are two different types of reports that I have.

Edit: This is my actual function. In each I'm fetching my records.

            for inv_no in each:
                if inv_no.invoice_date > '2017-06-30':
                    return {
                            'type': 'ir.actions.report.xml',
                            'report_name': 'gst_invoice_print',
                            'datas': datas,
                            }
                else:
                    return {
                            'type': 'ir.actions.report.xml',
                            'report_name': 'invoice_print',
                            'datas': datas,
                            }