print_stock_transfer/print_stock_transfer.py

from openerp import api, models
from num2words import num2words

class report_stock_transfer(models.AbstractModel):
    _name = 'report.print_stock_transfer.report_stock_transfer'

    @api.multi
    def render_html(self, data=None):
        report_obj = self.env['report']
        report = report_obj._get_report_from_name('print_stock_transfer.report_stock_transfer')
        docargs = {
            'doc_ids': self._ids,
            'doc_model': report.model,
            'docs': self.env[report.model].browse(self._ids),
        }
        return report_obj.render('print_stock_transfer.report_stock_transfer', docargs)