From 5259921bb18b68e6292fc5d24e049e1af1ebb603 Mon Sep 17 00:00:00 2001
From: Salvo 'LtWorf' Tomaselli <tiposchi@tiscali.it>
Date: Tue, 18 Aug 2020 16:41:39 +0200
Subject: [PATCH] Better error message

---
 relational/relation.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/relational/relation.py b/relational/relation.py
index be6c1a0..0205f72 100644
--- a/relational/relation.py
+++ b/relational/relation.py
@@ -145,7 +145,7 @@ class Relation(NamedTuple):
                 if eval(c_expr, attributes):
                     content.append(i)
             except Exception as e:
-                raise Exception(f'Failed to evaluate {expr}\n{e}')
+                raise Exception(f'Failed to evaluate {expr} with {attributes}\n{e}')
         return Relation(self.header, frozenset(content))
 
     def product(self, other: 'Relation') -> 'Relation':