Implemented PEP 405 (Python virtual environments).
diff --git a/Tools/scripts/pyvenv b/Tools/scripts/pyvenv
new file mode 100755
index 0000000..978d691
--- /dev/null
+++ b/Tools/scripts/pyvenv
@@ -0,0 +1,11 @@
+#!/usr/bin/env python3
+if __name__ == '__main__':
+    import sys
+    rc = 1
+    try:
+        import venv
+        venv.main()
+        rc = 0
+    except Exception as e:
+        print('Error: %s' % e, file=sys.stderr)
+    sys.exit(rc)