From 3c178fda27960749749d4a73f2d58f7f14f631ff Mon Sep 17 00:00:00 2001
From: James Krieger <jamesmkrieger@gmail.com>
Date: Fri, 5 Feb 2021 12:06:05 +0000
Subject: [PATCH] ccealign import try except

---
 prody/proteins/compare.py | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/prody/proteins/compare.py b/prody/proteins/compare.py
index 142e5f604..eb3057d6c 100644
--- a/prody/proteins/compare.py
+++ b/prody/proteins/compare.py
@@ -1379,7 +1379,12 @@ def _findAlignment(sequence, alignment):
     return amatch, bmatch, n_match, n_mapped
 
 def getCEAlignMapping(target, chain):
-    from .ccealign import ccealign
+    try:
+        from .ccealign import ccealign
+    except:
+        LOGGER.warn('Could not import ccealign C/C++ extension.'
+                    'It may not be installed properly.')
+        return None
 
     tar_coords = target.getCoords().tolist()
     mob_coords = chain.getCoords().tolist()