For example, to replace the native invoice report by a custom py3o
report, add the following XML file in your custom module:

`` `  <?xml version="1.0" encoding="utf-8"?> <odoo>  <record id="account.account_invoices" model="ir.actions.report">     <field name="report_type">py3o</field>     <field name="py3o_filetype">odt</field>     <field name="module">my_custom_module_base</field>     <field name="py3o_template_fallback">report/account_invoice.odt</field> </record>  </odoo> ``\`

where *my_custom_module_base* is the name of the custom Odoo module. In
this example, the invoice ODT file is located in
*my_custom_module_base/report/account_invoice.odt*.

It's also possible to reference a template located in a trusted path of
your Odoo server. In this case you must let the *module* entry empty and
specify the path to the template as *py3o_template_fallback*.

`` `  <?xml version="1.0" encoding="utf-8"?> <odoo>  <record id="account.account_invoices" model="ir.actions.report">     <field name="report_type">py3o</field>     <field name="py3o_filetype">odt</field>     <field name="py3o_template_fallback">/odoo/templates/py3o/report/account_invoice.odt</field> </record>  </odoo> ``\`

Moreover, you must also modify the Odoo server configuration file to
declare the allowed root directory for your py3o templates. Only
templates located into this directory can be loaded by py3o report.

`` `  [options] ...  [report_py3o] root_tmpl_path=/odoo/templates/py3o ``\`

If you want an invoice in PDF format instead of ODT format, the XML file
should look like:

`` `  <?xml version="1.0" encoding="utf-8"?> <odoo>  <record id="account.account_invoices" model="ir.actions.report">     <field name="report_type">py3o</field>     <field name="py3o_filetype">pdf</field>     <field name="module">my_custom_module_base</field>     <field name="py3o_template_fallback">report/account_invoice.odt</field> </record>  </odoo> ``\`

If you want to add a new py3o PDF report (and not replace a native
report), the XML file should look like this:

`` `  <?xml version="1.0" encoding="utf-8"?> <odoo>  <record id="partner_summary_report" model="ir.actions.report">     <field name="name">Partner Summary</field>     <field name="model">res.partner</field>     <field name="report_name">res.partner.summary</field>     <field name="report_type">py3o</field>     <field name="py3o_filetype">pdf</field>     <field name="module">my_custom_module_base</field>     <field name="py3o_template_fallback">report/partner_summary.odt</field>     <!-- Add entry in "Print" drop-down list -->     <field name="binding_type">report</field>     <field name="binding_model_id" ref="base.model_res_partner"/> </record>  </odoo> ``\`

\## Configuration parameters

py3o.conversion_command The command to be used to run the conversion,
libreoffice by default. If you change this, whatever you set here must
accept the parameters --headless --convert-to \$ext \$file and put the
resulting file into \$file's directory with extension \$ext. The command
will be started in \$file's directory.