From d5b592d95d3844f902378ac4d97ea8a0e8843600 Mon Sep 17 00:00:00 2001
From: Alex Gaynor <alex.gaynor@gmail.com>
Date: Mon, 20 Oct 2014 10:53:58 -0700
Subject: improved the error message

---
 cryptography/fernet.py | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/cryptography/fernet.py b/cryptography/fernet.py
index 9fee3eba..6bc401de 100644
--- a/cryptography/fernet.py
+++ b/cryptography/fernet.py
@@ -132,7 +132,9 @@ class Fernet(object):
 class MultiFernet(object):
     def __init__(self, fernets):
         if not fernets:
-            raise ValueError("MultiFernet requires at least one fernet")
+            raise ValueError(
+                "MultiFernet requires at least one Fernet instance"
+            )
         self._fernets = fernets
 
     def encrypt(self, msg):
-- 
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