[IMP] tools: add DotDict helper

This function allow a quck dot.notation access to dictionary attributes

We need to make it re-usable for a future enterprise commit

addons/website_sale/tests/test_website_sale_pricelist.py

@@ -6,6 +6,7 @@ except ImportError:
     from mock import patch
 from odoo.tests import tagged
 from odoo.tests.common import HttpCase, TransactionCase
+from odoo.tools import DotDict
 
 ''' /!\/!\
 Calling `get_pricelist_available` after setting `property_product_pricelist` on
@@ -157,13 +158,6 @@ def simulate_frontend_context(self, website_id=1):
     self.addCleanup(patcher.stop)
 
 
-class DotDict(dict):
-    """dot.notation access to dictionary attributes"""
-    def __getattr__(*args):
-        val = dict.get(*args)
-        return DotDict(val) if type(val) is dict else val
-
-
 @tagged('post_install', '-at_install')
 class TestWebsitePriceListAvailable(TransactionCase):
     # This is enough to avoid a mock (request.session/website do not exist during test)

odoo/tools/misc.py

@@ -1243,3 +1243,15 @@ def wrap_module(module, attr_list):
             raise AttributeError(attrib)
     # module and attr_list are in the closure
     return WrappedModule()
+
+
+class DotDict(dict):
+    """Helper for dot.notation access to dictionary attributes
+
+        E.g.
+          foo = DotDict({'bar': False})
+          return foo.bar
+    """
+    def __getattr__(self, attrib):
+        val = self.get(attrib)
+        return DotDict(val) if type(val) is dict else val