Num ast has been renamed to Constant on 3.8

IPython/core/tests/test_interactiveshell.py

@@ -609,10 +609,15 class TestModules(tt.TempFileMixin, unittest.TestCase):
 
 class Negator(ast.NodeTransformer):
     """Negates all number literals in an AST."""
+
     def visit_Num(self, node):
         node.n = -node.n
         return node
 
+    if sys.version_info > (3,8):
+        def visit_Constant(self, node):
+            return self.visit_Num(node)
+
 class TestAstTransform(unittest.TestCase):
     def setUp(self):
         self.negator = Negator()
@@ -680,6 +685,11 class IntegerWrapper(ast.NodeTransformer):
                             args=[node], keywords=[])
         return node
 
+    if sys.version_info > (3,8):
+        def visit_Constant(self, node):
+            return self.visit_Num(node)
+
+
 class TestAstTransform2(unittest.TestCase):
     def setUp(self):
         self.intwrapper = IntegerWrapper()
@@ -723,6 +733,11 class ErrorTransformer(ast.NodeTransformer):
     def visit_Num(self, node):
         raise ValueError("test")
 
+    if sys.version_info > (3,8):
+        def visit_Constant(self, node):
+            return self.visit_Num(node)
+
+
 class TestAstTransformError(unittest.TestCase):
     def test_unregistering(self):
         err_transformer = ErrorTransformer()