- small updates to scripts and bpython docs, also fixed two warnings;

- added function Blender.sys.exists(path) to check if a given file exists;
- forgot to mention: in my previous commit the blender.html file was also updated slightly.

release/scripts/bvh_export.py

@@ -333,7 +333,9 @@ def motion2bvh(frame, chennelList, nodeObjectList):
   return motionData
 
 def saveBVH(filename):
-  
+
+  if filename.find('.bvh', -4) <= 0: filename += '.bvh' # for safety
+
   # Here we store a serialized list of blender objects as they appier
   # in the hierarchy, this is refred to when writing motiondata
   nodeObjectList = []

release/scripts/obj_export.py

@@ -65,7 +65,9 @@ from Blender import *
 NULL_MAT = '(null)' 
 
 def save_obj(filename): 
-    
+
+   if filename.find('.obj', -4) <= 0: filename += '.obj' # for safety
+
    file = open(filename, "w") 
     
    # Write Header