From 44e57a367527dffdab3312ea93cba411984147ea Mon Sep 17 00:00:00 2001
From: easyw <easyw@katamail.com>
Date: Mon, 29 Jan 2018 22:07:58 +0100
Subject: [PATCH] adding 'import sys' needed when opening a dxf file

---
 src/Mod/Draft/importDXF.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/Mod/Draft/importDXF.py b/src/Mod/Draft/importDXF.py
index bca7d6c153..261d28d96b 100644
--- a/src/Mod/Draft/importDXF.py
+++ b/src/Mod/Draft/importDXF.py
@@ -1542,14 +1542,15 @@ def warn(dxfobject,num=None):
 
 def open(filename):
     "called when freecad opens a file."
+    import sys
     readPreferences()
     if dxfUseLegacyImporter:
         getDXFlibs()
         if dxfReader:
+            #workaround since newDocument currently can't handle unicode filenames
             docname = os.path.splitext(os.path.basename(filename))[0]
             if sys.version_info.major < 3:
                 if isinstance(docname,unicode): 
-                    import sys #workaround since newDocument currently can't handle unicode filenames
                     docname = docname.encode(sys.getfilesystemencoding())
             doc = FreeCAD.newDocument(docname)
             doc.Label = decodeName(docname)