From a055fa845ada289809d450965cd323f337425fd5 Mon Sep 17 00:00:00 2001
From: Matthias Diener <mdiener@illinois.edu>
Date: Tue, 11 May 2021 10:49:45 -0500
Subject: [PATCH] add prefix

---
 pytools/__init__.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/pytools/__init__.py b/pytools/__init__.py
index bd654ea..2d4b465 100644
--- a/pytools/__init__.py
+++ b/pytools/__init__.py
@@ -2178,7 +2178,8 @@ class UniqueNameGenerator:
         if self.is_name_conflicting(name):
             raise ValueError("name '%s' conflicts with existing names" % name)
         if not name.startswith(self.forced_prefix):
-            raise ValueError("name '%s' does not start with required prefix" % name)
+            raise ValueError("name '%s' does not start with required prefix '%s'"
+                             % (name, self.forced_prefix))
 
         self.existing_names.add(name)
         self._name_added(name)
-- 
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