From 4d4698f016c6eda6a087b013756542e763bd0476 Mon Sep 17 00:00:00 2001
From: Christoph Groth <christoph.groth@cea.fr>
Date: Tue, 8 Mar 2016 21:32:52 +0100
Subject: [PATCH] reformulate message of previous commit
---
kwant/builder.py | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/kwant/builder.py b/kwant/builder.py
index b43b5547..e33aba94 100644
--- a/kwant/builder.py
+++ b/kwant/builder.py
@@ -1071,7 +1071,7 @@ class Builder(object):
the leads are numbered in the order in which they are attached.
"""
if self.symmetry.num_directions:
- raise ValueError("Can only attach leads to finite systems")
+ raise ValueError("Leads can only be attached to finite systems.")
if add_cells < 0 or int(add_cells) != add_cells:
raise ValueError('add_cells must be an integer >= 0.')
--
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