update to python3.7

include/python3.7m/ast.h

@@ -0,0 +1,29 @@
+#ifndef Py_AST_H
+#define Py_AST_H
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+PyAPI_FUNC(int) PyAST_Validate(mod_ty);
+PyAPI_FUNC(mod_ty) PyAST_FromNode(
+    const node *n,
+    PyCompilerFlags *flags,
+    const char *filename,       /* decoded from the filesystem encoding */
+    PyArena *arena);
+PyAPI_FUNC(mod_ty) PyAST_FromNodeObject(
+    const node *n,
+    PyCompilerFlags *flags,
+    PyObject *filename,
+    PyArena *arena);
+
+#ifndef Py_LIMITED_API
+
+/* _PyAST_ExprAsUnicode is defined in ast_unparse.c */
+PyAPI_FUNC(PyObject *) _PyAST_ExprAsUnicode(expr_ty);
+
+#endif /* !Py_LIMITED_API */
+
+#ifdef __cplusplus
+}
+#endif
+#endif /* !Py_AST_H */