# HG changeset patch
# User Franz Glasner <fzglas.hg@dom66.de>
# Date 1691021986 -7200
# Node ID a0b464f6ab1fce8697b61b6aa2280202cb96d004
# Parent  e7f6fc454f84854327a6f0b67bc674884bc935f4
FIX: Allow only real _Schema instances as schemas in a Context

diff -r e7f6fc454f84 -r a0b464f6ab1f data_schema/__init__.py
--- a/data_schema/__init__.py	Wed Aug 02 17:54:16 2023 +0200
+++ b/data_schema/__init__.py	Thu Aug 03 02:19:46 2023 +0200
@@ -440,6 +440,9 @@
                  current_object=_SENTINEL,
                  settings=_SENTINEL,
                  key_index=_SENTINEL):
+        if root_schema is not _SENTINEL:
+            if not isinstance(root_schema, _Schema):
+                raise TypeError("schema must be a `_Schema' not a pure `dict'")
         if parent is None:
             if key is not _SENTINEL:
                 raise TypeError("the root context may not have a key")