Prefer double-quoted strings

1 files changed, 7 insertions, 7 deletions

diff --git a/test_six.py b/test_six.py
index adc55bd..beb9841 100644
--- a/test_six.py
+++ b/test_six.py
@@ -524,21 +524,21 @@ def test_patch_with_metaclass():
 
 def test_patch_with_metaclass_extra_meta():
     class Meta1(type):
-        m1 = 'm1'
+        m1 = "m1"
     class Meta2(Meta1):
-        m2 = 'm2'
+        m2 = "m2"
     @six.patch_with_metaclass(Meta1)
     class Base:
-        b = 'b'
+        b = "b"
     @six.patch_with_metaclass(Meta2)
     class X(Base):
-        x = 'x'
+        x = "x"
     assert type(X) is Meta2
     assert issubclass(X, Base)
     assert type(Base) is Meta1
-    assert not '__dict__' in vars(X)
+    assert not "__dict__" in vars(X)
     instance = X()
-    instance.attr = 'test'
-    assert vars(instance) == {'attr': 'test'}
+    instance.attr = "test"
+    assert vars(instance) == {"attr": "test"}
     assert instance.b == Base.b
     assert instance.x == X.x