Additional doxygen doc

src/optional/python-bindings/example_scripts/gncinvoicefkt.py

@@ -1,17 +1,17 @@
 #!/usr/bin/env python
 # -*- coding: UTF-8 -*-
 
-# ##@file
+##@file
 # @ingroup python_bindings_examples
 # @author Christoph Holtermann (c.holtermann (at) gmx.de)
 # @date 2014-11
-# @brief some help for working with invoices
+# @brief some help for working with invoices, used in \ref py_invoice_export
 #
 # Credits to Tom Loft for the query to get_all_invoices
 # as used in his REST-Api
 #
 # Issues:
-# - get_all_invoices could be added to class book
+# - get_all_invoices could be added as a method to book Class
 # - get_all_customers should be a query like get_all_invoices
 
 try:

src/optional/python-bindings/example_scripts/invoice_export_doxygen.txt

@@ -27,10 +27,16 @@ LaTeX or other output formats as desired.
 
     LaTeX template using a table to fill in the invoices values. No rechnung.sty required.
 
+- gncinvoicefkt.py
+
+  Some helping functions. Included by latex_invoices.py and gncinvoice_jinja.py.
+
 \par Goals / Issues:
-- How much logic in the template, how much preprocessing in this file ?
+- How much logic in the template, how much preprocessing in the python script ?
 - Internationalization - currencies, formatting of numbers, templates
-- Providing data of gnucash owner. At the moment this has to be put into the invoices (template/final file) by hand.
+- Providing data of gnucash owner. 
+
+  At the moment this has to be put into the invoices (template/final file) by hand. Access of this data is in KVPs. No support in python-bindings at the moment. c-API to access these values is work in progress. A fork to access these is https://github.com/c-holtermann/gnucash/tree/python-kvp. This is very much work in progress. A discussion can be found in thread http://lists.gnucash.org/pipermail/gnucash-devel/2014-June/037768.html.
 - A jinja2 template mimicking the original html invoices
 
 \par See also: