Merged in z_makrelouf/py3o.template (pull request #47)

[REF]main.py: fix generated VALUE formula in `__prepare_calc_formulas` function

Approved-by: stephane_bidoul <stephane.bidoul@acsone.eu>

py3o/template/main.py

@@ -993,7 +993,8 @@
                 value = userfield.attrib[formula_attr]
                 userfield.attrib[formula_attr] = re.sub(
                     r'\"?\${([\w.]*?)(?<!odf_value)}\"?',
-                    r'VALUE(${getattr(\1, "odf_value", "\"{}\"".format(\1))})',
+                    r'VALUE(${\1 if isinstance(\1, (int, float)) '
+                    r'else getattr(\1, "odf_value", "\"{}\"".format(\1))})',
                     value
                 )