diff --git a/pyqtgraph/parametertree/tests/test_parametertypes.py b/pyqtgraph/parametertree/tests/test_parametertypes.py
index c7cd2cb3..dc581019 100644
--- a/pyqtgraph/parametertree/tests/test_parametertypes.py
+++ b/pyqtgraph/parametertree/tests/test_parametertypes.py
@@ -12,7 +12,7 @@ def test_opts():
     tree = pt.ParameterTree()
     tree.setParameters(param)
 
-    assert param.param('bool').items.keys()[0].widget.isEnabled() is False
-    assert param.param('color').items.keys()[0].widget.isEnabled() is False
+    assert list(param.param('bool').items.keys())[0].widget.isEnabled() is False
+    assert list(param.param('color').items.keys())[0].widget.isEnabled() is False
 
 
diff --git a/pyqtgraph/tests/test_exit_crash.py b/pyqtgraph/tests/test_exit_crash.py
index f3ce8282..dfad5228 100644
--- a/pyqtgraph/tests/test_exit_crash.py
+++ b/pyqtgraph/tests/test_exit_crash.py
@@ -12,8 +12,8 @@ w = pg.{classname}({args})
 
 
 def test_exit_crash():
-    # For each Widget subclass, run a simple python script that creates an 
-    # instance and then shuts down. The intent is to check for segmentation 
+    # For each Widget subclass, run a simple python script that creates an
+    # instance and then shuts down. The intent is to check for segmentation
     # faults when each script exits.
     tmp = tempfile.mktemp(".py")
     path = os.path.dirname(pg.__file__)