From 95e07617ca154498b80cc28b27d623e59d121aac Mon Sep 17 00:00:00 2001
From: Anton Akhmerov <anton.akhmerov@gmail.com>
Date: Thu, 8 Mar 2012 18:29:47 -0500
Subject: [PATCH] fix a simple bug

---
 kwant/solvers/sparse.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kwant/solvers/sparse.py b/kwant/solvers/sparse.py
index fafb55b4..68546232 100644
--- a/kwant/solvers/sparse.py
+++ b/kwant/solvers/sparse.py
@@ -43,7 +43,7 @@ def factorized(A, piv_tol=1.0, sym_piv_tol=1.0):
     """
 
     if not sp.isspmatrix_csc(A):
-        A = csc_matrix(A)
+        A = sp.csc_matrix(A)
 
     A.sort_indices()
     A = A.asfptype()  #upcast to a floating point format
-- 
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