From ab9c415e261a9d8f4ca678c8ea4d6d2600f517a6 Mon Sep 17 00:00:00 2001
From: fieldOfView <aldo@fieldofview.com>
Date: Mon, 5 Feb 2018 18:30:25 +0100
Subject: [PATCH] Gracefully handle missing libCharon

---
 plugins/UFPWriter/__init__.py | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

diff --git a/plugins/UFPWriter/__init__.py b/plugins/UFPWriter/__init__.py
index 77f8e81222..9db6b042f8 100644
--- a/plugins/UFPWriter/__init__.py
+++ b/plugins/UFPWriter/__init__.py
@@ -1,13 +1,23 @@
 #Copyright (c) 2018 Ultimaker B.V.
 #Cura is released under the terms of the LGPLv3 or higher.
 
-from . import UFPWriter
+import sys
+
+from UM.Logger import Logger
+try:
+    from . import UFPWriter
+except ImportError:
+    Logger.log("w", "Could not import UFPWriter; libCharon may be missing")
+
 from UM.i18n import i18nCatalog #To translate the file format description.
 from UM.Mesh.MeshWriter import MeshWriter #For the binary mode flag.
 
 i18n_catalog = i18nCatalog("cura")
 
 def getMetaData():
+    if "UFPWriter.UFPWriter" not in sys.modules:
+        return {}
+
     return {
         "mesh_writer": {
             "output": [
@@ -22,4 +32,7 @@ def getMetaData():
     }
 
 def register(app):
+    if "UFPWriter.UFPWriter" not in sys.modules:
+        return {}
+
     return { "mesh_writer": UFPWriter.UFPWriter() }