Replace assert with proper checksassert_deletion

Signed-off-by: Ivan Kanakarakis <ivan.kanak@gmail.com>

1 files changed, 4 insertions, 2 deletions

diff --git a/src/saml2/client_base.py b/src/saml2/client_base.py
index 564f657e..871f3f2c 100644
--- a/src/saml2/client_base.py
+++ b/src/saml2/client_base.py
@@ -646,8 +646,10 @@ class Base(Entity):
         :return:
         """
 
-        # One of them must be present
-        assert name_id or base_id or encrypted_id
+        if not name_id and not base_id and not encrypted_id:
+            raise ValueError(
+                "At least one of name_id, base_id or encrypted_id must be present."
+            )
 
         if name_id:
             return self._message(NameIDMappingRequest, destination, message_id,