@ -193,7 +193,7 @@ class Relation:
if eval(c_expr, attributes):
content.append(i)
except Exception as e:
raise Exception(f'Failed to evaluate {expr} with {attributes}\n{e}')
raise Exception(f'Failed to evaluate {expr} with {i}\n{e}')
return Relation(self.header, frozenset(content))
def product(self, other: 'Relation') -> 'Relation':