From 723c3e16012f1b07b8326658eb0601aa8069a4aa Mon Sep 17 00:00:00 2001
From: Raymond Butcher <ray.butcher@claranet.uk>
Date: Wed, 19 Jun 2019 08:36:41 +0100
Subject: [PATCH] Skip parse table if ply not installed

---
 setup.py | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/setup.py b/setup.py
index 4521d06..14320aa 100644
--- a/setup.py
+++ b/setup.py
@@ -36,7 +36,12 @@ def _pre_install():
 
 class build_py(_build_py):
     def run(self):
-        self.execute(_pre_install, (), msg="Generating parse table...")
+        try:
+            import ply
+        except ImportError:
+            print("skipping parse table")
+        else:
+            self.execute(_pre_install, (), msg="generating parse table...")
         _build_py.run(self)