diff --git a/CMake/sbk_list_typesystem_sources.py b/CMake/sbk_list_typesystem_sources.py
index 55ca4bcc884c5288be66a9c33b56a3a1f6e256d2..d2aad1cf09b73588351d63c3d87caae98467eacc 100644
--- a/CMake/sbk_list_typesystem_sources.py
+++ b/CMake/sbk_list_typesystem_sources.py
@@ -61,7 +61,7 @@ class typesystem_parser(xml.sax.ContentHandler):
             generate = True
             if ('generate' in attrs):
                 generate = (attrs['generate'].lower() == "yes")
-            if(generate):
+            if (generate):
                 self.printWrapperFiles(self.current_namespace)
 
         elif name in class_types:
@@ -72,7 +72,7 @@ class typesystem_parser(xml.sax.ContentHandler):
             generate = True
             if ('generate' in attrs):
                 generate = (attrs['generate'].lower() == "yes")
-            if(generate):
+            if (generate):
                 self.printWrapperFiles(self.current_namespace)
 
     def endElement(self, name):
diff --git a/smtk/attribute/testing/python/copyDefinitionTest.py b/smtk/attribute/testing/python/copyDefinitionTest.py
index c24aeb8b2f8b5c3f4600a6af8df299d7689cd85a..83eaff6b19ebcb2fcfdc9076b03a6161d8815260 100644
--- a/smtk/attribute/testing/python/copyDefinitionTest.py
+++ b/smtk/attribute/testing/python/copyDefinitionTest.py
@@ -92,28 +92,28 @@ if __name__ == '__main__':
 
     # Add explicit test for conditional children
     defn = test_resource.findDefinition('SecondConcrete')
-    assert(defn is not None)
+    assert (defn is not None)
 
     # First selection list
     i = defn.findItemPosition('SelectionList')
-    assert(i >= 0)
+    assert (i >= 0)
     select_item_def = defn.itemDefinition(i)
-    assert(select_item_def.name() == 'SelectionList')
-    assert(select_item_def.isDiscrete())
-    assert(not select_item_def.hasDefault())
+    assert (select_item_def.name() == 'SelectionList')
+    assert (select_item_def.isDiscrete())
+    assert (not select_item_def.hasDefault())
 
     # Second selection list (with conditional children)
     i = defn.findItemPosition('ConditionalSelectionList')
-    assert(i >= 0)
+    assert (i >= 0)
     cond_item_def = defn.itemDefinition(i)
-    assert(cond_item_def is not None)
-    assert(cond_item_def.hasDefault())
+    assert (cond_item_def is not None)
+    assert (cond_item_def.hasDefault())
 
     list_one = cond_item_def.conditionalItems('One')
-    assert(len(list_one) == 1)
+    assert (len(list_one) == 1)
 
     list_two = cond_item_def.conditionalItems('Two')
-    assert(len(list_two) == 3)
+    assert (len(list_two) == 3)
 
     # Note there is ALOT more that could & should be verified here
     logging.debug('Writing resource')
diff --git a/smtk/attribute/testing/python/unitAttributeBasics.py b/smtk/attribute/testing/python/unitAttributeBasics.py
index 3347a82761351e4b33a5622649029a5f5d075dc3..c7ee7466c9c74933cb08464246653a10009be2e1 100644
--- a/smtk/attribute/testing/python/unitAttributeBasics.py
+++ b/smtk/attribute/testing/python/unitAttributeBasics.py
@@ -103,41 +103,41 @@ if __name__ == '__main__':
     att.setUserData("dataString", dataS)
     data = att.userData("bar")
     if data is not None:
-        print ("Should not have found user data bar.\n")
+        print("Should not have found user data bar.\n")
         status = -1
     data = att.userData("dataInt")
     if data is None:
-        print ("Can not find user data dataInt.\n")
+        print("Can not find user data dataInt.\n")
         status = -1
     else:
         if data.value() != 10:
-            print ("dataInt is not 10.\n")
+            print("dataInt is not 10.\n")
             status = -1
     data = att.userData("dataString")
     if data is None:
-        print ("Can not find user data dataString.\n")
+        print("Can not find user data dataString.\n")
         status = -1
     else:
         if data.value() != "foo":
-            print ("dataString is not foo.\n")
+            print("dataString is not foo.\n")
             status = -1
     att.clearUserData("dataInt")
     data = att.userData("dataInt")
     if data is not None:
-        print ("Found user data dataInt after trying to clear it.\n")
+        print("Found user data dataInt after trying to clear it.\n")
         status = -1
     data = att.userData("dataString")
     if data is None:
-        print (
+        print(
             "Can not find user data dataString after removing dataInt from user data.\n")
         status = -1
     att.clearAllUserData()
     data = att.userData("dataString")
     if data is not None:
-        print ("Found user data dataString after removing all user data.\n")
+        print("Found user data dataString after removing all user data.\n")
         status = -1
     if status == 0:
-        print ("Passed all User Data Tests.\n")
+        print("Passed all User Data Tests.\n")
 #    if att.resource() is not None:
 #       print("Should not be null.\n")
 #       status = -1
diff --git a/smtk/extension/vtk/io/testing/python/unitImportExportVTKData.py b/smtk/extension/vtk/io/testing/python/unitImportExportVTKData.py
index d12fa472a053f5d591cc52cf210ed075f6ff66fe..f31bff288cd2babfdff831587e02efd859ab6a97 100644
--- a/smtk/extension/vtk/io/testing/python/unitImportExportVTKData.py
+++ b/smtk/extension/vtk/io/testing/python/unitImportExportVTKData.py
@@ -95,8 +95,8 @@ def make_MixedVolUGrid():
 
 def test_same_datasets(ds, ds2):
     EPSILON = 1.e-6
-    assert(ds.GetNumberOfPoints() == ds2.GetNumberOfPoints())
-    assert(ds.GetNumberOfCells() == ds2.GetNumberOfCells())
+    assert (ds.GetNumberOfPoints() == ds2.GetNumberOfPoints())
+    assert (ds.GetNumberOfCells() == ds2.GetNumberOfCells())
 
     it = ds.NewCellIterator()
     it2 = ds2.NewCellIterator()
@@ -105,8 +105,8 @@ def test_same_datasets(ds, ds2):
     while True:
         if it.IsDoneWithTraversal() or it2.IsDoneWithTraversal():
             break
-        assert(it.GetCellType() == it2.GetCellType())
-        assert(it.GetNumberOfPoints() == it2.GetNumberOfPoints())
+        assert (it.GetCellType() == it2.GetCellType())
+        assert (it.GetNumberOfPoints() == it2.GetNumberOfPoints())
         points = it.GetPoints()
         points2 = it2.GetPoints()
         xyz = [0., 0., 0.]
@@ -115,7 +115,7 @@ def test_same_datasets(ds, ds2):
             points.GetPoint(i, xyz)
             points2.GetPoint(i, xyz2)
             for j in range(3):
-                assert(abs(xyz[j] - xyz2[j]) < EPSILON)
+                assert (abs(xyz[j] - xyz2[j]) < EPSILON)
         it.GoToNextCell()
         it2.GoToNextCell()
 
diff --git a/smtk/mesh/testing/python/meshMetrics.py b/smtk/mesh/testing/python/meshMetrics.py
index 5d95e0ee7957b49634664e10a416911c90c85958..953c4903a06b154e5c00d4d3c90990806fdefede 100644
--- a/smtk/mesh/testing/python/meshMetrics.py
+++ b/smtk/mesh/testing/python/meshMetrics.py
@@ -34,15 +34,15 @@ def test_mesh_metrics():
     tolerance = 1.e-8
     for i in range(0, 6):
         if i % 2 == 0:
-            assert(abs(ext[i] + .5) < tolerance)
+            assert (abs(ext[i] + .5) < tolerance)
         else:
-            assert(abs(ext[i] - .5) < tolerance)
+            assert (abs(ext[i] - .5) < tolerance)
 
     dim = smtk.mesh.highestDimension(mr.meshes())
-    assert(dim == smtk.mesh.Dims3)
+    assert (dim == smtk.mesh.Dims3)
 
     euler_characteristic = smtk.mesh.eulerCharacteristic(mr.meshes())
-    assert(euler_characteristic == 0)
+    assert (euler_characteristic == 0)
 
 
 if __name__ == '__main__':
diff --git a/smtk/operation/pybind11/__init__.py b/smtk/operation/pybind11/__init__.py
index 92507d6e96914321bb25510dc35ad5ec0ca5d887..54495cdc55785f504f33f166a41a570b508909de 100644
--- a/smtk/operation/pybind11/__init__.py
+++ b/smtk/operation/pybind11/__init__.py
@@ -143,7 +143,7 @@ def configureAttribute(attr, config):
             resourceMap[rsrc.name()] = rsrc
     # build_attribute expects the resource map as an arg.
     if config.get("resources") is not None:
-        del(config["resources"])
+        del (config["resources"])
     if config.get("resourceManager") is not None:
-        del(config["resourceManager"])
+        del (config["resourceManager"])
     builder.build_attribute(attr, config, resourceMap)
diff --git a/smtk/operation/testing/python/testConstructedAPI.py b/smtk/operation/testing/python/testConstructedAPI.py
index 7cce1703fea9fa665f639d54a7c8a506280d02a2..244a08d6740c6070d0e254cfb7bac652d51f385c 100644
--- a/smtk/operation/testing/python/testConstructedAPI.py
+++ b/smtk/operation/testing/python/testConstructedAPI.py
@@ -22,19 +22,19 @@ class TestConstructedAPI(smtk.testing.TestCase):
     def testConstructedAPI(self):
         op = smtk.operation.WriteResource.create()
         parameters = op.parameters()
-        assert(hasattr(parameters, 'setFilename'))
-        assert(hasattr(parameters, 'filename'))
+        assert (hasattr(parameters, 'setFilename'))
+        assert (hasattr(parameters, 'filename'))
         filename = 'foo.smtk'
         parameters.setFilename(filename)
-        assert(parameters.filename() == filename)
-        assert(hasattr(parameters, 'setDebugLevel'))
-        assert(hasattr(parameters, 'debugLevel'))
-        assert(hasattr(parameters, 'enableDebugLevel'))
-        assert(hasattr(parameters, 'debugLevelEnabled'))
+        assert (parameters.filename() == filename)
+        assert (hasattr(parameters, 'setDebugLevel'))
+        assert (hasattr(parameters, 'debugLevel'))
+        assert (hasattr(parameters, 'enableDebugLevel'))
+        assert (hasattr(parameters, 'debugLevelEnabled'))
         parameters.enableDebugLevel(True)
-        assert(parameters.debugLevelEnabled() == True)
+        assert (parameters.debugLevelEnabled() == True)
         parameters.setDebugLevel(3)
-        assert(parameters.debugLevel() == 3)
+        assert (parameters.debugLevel() == 3)
 
 
 if __name__ == '__main__':
diff --git a/smtk/resource/testing/python/testResource.py b/smtk/resource/testing/python/testResource.py
index e1fb98b86e07585aa4478e2a41da87b072c0addb..9dab006c258aca4dbd75ad6631bea68ecf19a2be 100644
--- a/smtk/resource/testing/python/testResource.py
+++ b/smtk/resource/testing/python/testResource.py
@@ -82,7 +82,7 @@ def test_python_resource():
     myComponent = myResource.newComponent()
     alsoMyComponent = myResource.find(myComponent.id())
 
-    assert(myComponent == alsoMyComponent)
+    assert (myComponent == alsoMyComponent)
 
 
 if __name__ == '__main__':
diff --git a/smtk/smtk/attribute_builder.py b/smtk/smtk/attribute_builder.py
index a2b68c15acf0055822e5019fdc5d466049f2805f..b3352f6729312b9b5643a72fea61fb1f1d62924e 100644
--- a/smtk/smtk/attribute_builder.py
+++ b/smtk/smtk/attribute_builder.py
@@ -444,7 +444,7 @@ class AttributeBuilder:
                 return att_list[0]
 
         # (else)
-        raise('failed to find attribute with spec {}'.format(spec))
+        raise ('failed to find attribute with spec {}'.format(spec))
 
     def _is_reference_item(self, item):
         """"""