$OpenBSD: patch-setup_py,v 1.4 2020/06/10 07:13:13 jasper Exp $

Relax overly strict dependencies

Index: setup.py
--- setup.py.orig
+++ setup.py
@@ -65,7 +65,7 @@ setup(
         "pyserial",
         "pydot",
         "six",
-        "tornado~=5.0",
+        "tornado",
     ],
     extras_require=extra_requirements,
     python_requires=">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*",
