[FIX] base_vat: validation for Chile and Colombia

Add validation using stdnum library since vatnumber is deprecated.

closes odoo/odoo#35433

Signed-off-by: Nicolas Martinelli (nim) <nim@odoo.com>

addons/base_vat/models/res_partner.py

@@ -14,6 +14,13 @@ except ImportError:
                     "Install it to support more countries, for example with `easy_install vatnumber`.")
     vatnumber = None
 
+# Although stdnum is a dependency of vatnumber, the import of the latter is surrounded by a try/except
+# if it is not installed. Therefore, we cannot be sure stdnum is installed in all cases.
+try:
+    import stdnum
+except ImportError:
+    stdnum = None
+
 from odoo import api, models, _
 from odoo.tools.misc import ustr
 from odoo.exceptions import ValidationError
@@ -29,6 +36,8 @@ _ref_vat = {
     'be': 'BE0477472701',
     'bg': 'BG1234567892',
     'ch': 'CHE-123.456.788 TVA or CH TVA 123456',  # Swiss by Yannick Vaucher @ Camptocamp
+    'cl': 'CL76086428-5',
+    'co': 'CO213123432-1 or CO213.123.432-1',
     'cy': 'CY12345678F',
     'cz': 'CZ12345679',
     'de': 'DE123456788',
@@ -363,3 +372,9 @@ class ResPartner(models.Model):
             return stdnum.al.vat.is_valid(vat)
         except ImportError:
             return True
+
+    def check_vat_cl(self, vat):
+        return stdnum.util.get_cc_module('cl', 'vat').is_valid(vat) if stdnum else True
+
+    def check_vat_co(self, vat):
+        return stdnum.util.get_cc_module('co', 'vat').is_valid(vat) if stdnum else True