From f38e6da3c763dd61388c0b666d044deaa24759bb Mon Sep 17 00:00:00 2001
From: Yorik van Havre <yorikvanhavre@users.sourceforge.net>
Date: Mon, 12 Mar 2012 18:45:47 -0300
Subject: [PATCH] Fixed bug 625 in Draft importers

---
 src/Mod/Draft/importAirfoilDAT.py | 12 +++++++-----
 src/Mod/Draft/importDXF.py        |  3 ++-
 src/Mod/Draft/importOCA.py        |  4 +++-
 src/Mod/Draft/importSVG.py        |  3 ++-
 4 files changed, 14 insertions(+), 8 deletions(-)

diff --git a/src/Mod/Draft/importAirfoilDAT.py b/src/Mod/Draft/importAirfoilDAT.py
index 8815ee9a3..4b0d68162 100644
--- a/src/Mod/Draft/importAirfoilDAT.py
+++ b/src/Mod/Draft/importAirfoilDAT.py
@@ -28,7 +28,9 @@ import re, FreeCAD, FreeCADGui, Part, cProfile, os, string
 from FreeCAD import Vector, Base
 from Draft import *
 
-pythonopen = open
+if open.__module__ == '__builtin__':
+        pythonopen = open
+
 useDraftWire = True
 
 def decodeName(name):
@@ -53,10 +55,10 @@ def open(filename):
 def insert(filename,docname):
 	"called when freecad imports a file"
 	groupname = os.path.splitext(os.path.basename(filename))[0]
-	try:
-		doc=FreeCAD.getDocument(docname)
-	except:
-		doc=FreeCAD.newDocument(docname)
+	try:
+		doc=FreeCAD.getDocument(docname)
+	except:
+		doc=FreeCAD.newDocument(docname)
 	importgroup = doc.addObject("App::DocumentObjectGroup",groupname)
 	importgroup.Label = decodeName(groupname)
 	process(doc,filename)
diff --git a/src/Mod/Draft/importDXF.py b/src/Mod/Draft/importDXF.py
index 234da7d88..58f9bbee5 100644
--- a/src/Mod/Draft/importDXF.py
+++ b/src/Mod/Draft/importDXF.py
@@ -52,7 +52,8 @@ else: gui = True
 try: draftui = FreeCADGui.draftToolBar
 except: draftui = None
 
-pythonopen = open # to distinguish python built-in open function from the one declared here
+if open.__module__ == '__builtin__':
+    pythonopen = open # to distinguish python built-in open function from the one declared here
 
 def prec():
     "returns the current Draft precision level"
diff --git a/src/Mod/Draft/importOCA.py b/src/Mod/Draft/importOCA.py
index 18220fa53..6324ce710 100644
--- a/src/Mod/Draft/importOCA.py
+++ b/src/Mod/Draft/importOCA.py
@@ -37,7 +37,9 @@ try: import FreeCADGui
 except ValueError: gui = False
 else: gui = True
 
-pythonopen = open
+if open.__module__ == '__builtin__':
+    pythonopen = open
+    
 params = FreeCAD.ParamGet("User parameter:BaseApp/Preferences/Mod/Draft")
 
 def getpoint(data):
diff --git a/src/Mod/Draft/importSVG.py b/src/Mod/Draft/importSVG.py
index b2f737710..14ff99076 100644
--- a/src/Mod/Draft/importSVG.py
+++ b/src/Mod/Draft/importSVG.py
@@ -48,7 +48,8 @@ else: gui = True
 try: draftui = FreeCADGui.draftToolBar
 except: draftui = None
 
-pythonopen = open
+if open.__module__ == '__builtin__':
+  pythonopen = open
 
 svgcolors = {
 	  'Pink': (255, 192, 203),