From e9e587d221bb20075c3802e6fff9467c57ed863f Mon Sep 17 00:00:00 2001
From: Andreas Kloeckner <inform@tiker.net>
Date: Mon, 9 Sep 2019 15:16:27 -0500
Subject: [PATCH] SymbolicAssignmentCollection: Flake8 fix

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

diff --git a/sumpy/assignment_collection.py b/sumpy/assignment_collection.py
index b44124b1..9a52df8e 100644
--- a/sumpy/assignment_collection.py
+++ b/sumpy/assignment_collection.py
@@ -148,7 +148,8 @@ class SymbolicAssignmentCollection(object):
         assert isinstance(name, six.string_types)
         assert name not in self.assignments
 
-        if six.PY2 and isinstance(name, unicode):
+        # coerce name onto non-unicode for Py2
+        if six.PY2 and isinstance(name, unicode):  # noqa: F821
             name = name.encode("us-ascii")
 
         if wrt_set is None:
-- 
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