X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=sfa%2Frspecs%2Felements%2Fversions%2Fnitosv1Channel.py;h=cf4a5f6106e171cf29dea3175eeaf80c24cd7944;hb=d59f8e0b663b71d8c349017d0ecb37cb6bc527a1;hp=60582e3552c6d7585573b648ee2affc6bef8d32a;hpb=3159d2c474d80bf0fb52040a0105a44f49314436;p=sfa.git

diff --git a/sfa/rspecs/elements/versions/nitosv1Channel.py b/sfa/rspecs/elements/versions/nitosv1Channel.py
index 60582e35..cf4a5f61 100644
--- a/sfa/rspecs/elements/versions/nitosv1Channel.py
+++ b/sfa/rspecs/elements/versions/nitosv1Channel.py
@@ -54,7 +54,8 @@ class NITOSv1Channel:
 
 
     @staticmethod
-    def get_channels(xml, filter={}):
+    def get_channels(xml, filter=None):
+        if filter is None: filter={}
         xpath = '//channel%s | //default:channel%s' % (XpathFilter.xpath(filter), XpathFilter.xpath(filter))
         channel_elems = xml.xpath(xpath)
         return NITOSv1Channel.get_channel_objs(channel_elems)