=== modified file 'bin/tools/config.py'
--- bin/tools/config.py	2010-01-13 12:53:41 +0000
+++ bin/tools/config.py	2010-01-15 16:23:35 +0000
@@ -343,10 +343,24 @@
             import stat
             os.chmod(filename, stat.S_IRUSR + stat.S_IWUSR)
 
+    # Verify that given addons path exist. Value can be a comma separated list of paths
     def _check_addons_path(self, option, opt, value, parser):
-        res = os.path.abspath(os.path.expanduser(value))
-        if not os.path.exists(res):
-            raise optparse.OptionValueError("option %s: no such directory: %r" % (opt, value))
+        def path_exist(path):
+            res = os.path.abspath(os.path.expanduser(path))
+            if not os.path.exists(res):
+                raise optparse.OptionValueError("option %s: no such directory: %r" % (opt, path))
+            return res
+        
+        value_array = value.split(',')
+        res = ''
+        
+        if value_array:
+            for rec in value_array:
+                path_exist(rec)
+            res = value
+        else :
+            res = path_exist(value)
+
         setattr(parser.values, option.dest, res)
 
     def load(self):