[GR-17152] Added hexversion to sys module

PullRequest: graalpython/586

Author: timfel

graalpython/lib-graalpython/sys.py

@@ -1,4 +1,4 @@
-# Copyright (c) 2019, 2019, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2017, 2019, Oracle and/or its affiliates. All rights reserved.
 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 #
 # The Universal Permissive License (UPL), Version 1.0
@@ -52,6 +52,11 @@ def make_implementation_info():
 del make_implementation_info
 del __gmultiarch
 version_info = implementation.version
+hexversion = ((version_info.major << 24) |
+              (version_info.minor << 16) |
+              (version_info.micro << 8) |
+              (0xa << 4) | # 0xA is alpha, 0xB is beta, 0xC is rc, 0xF is final
+              (version_info.serial << 0))
 
 
 def make_flags_class():