huge cleanup for removing mutables used as default

[sfa.git] / sfa / rspecs / elements / versions / iotlabv1Lease.py

diff --git a/sfa/rspecs/elements/versions/iotlabv1Lease.py b/sfa/rspecs/elements/versions/iotlabv1Lease.py
index eebb1ae..bfc503a 100644 (file)
--- a/sfa/rspecs/elements/versions/iotlabv1Lease.py
+++ b/sfa/rspecs/elements/versions/iotlabv1Lease.py
@@ -29,7 +29,8 @@ class Iotlabv1Lease:
 
 
     @staticmethod
-    def get_leases(xml, filter={}):
+    def get_leases(xml, filter=None):
+        if filter is None: filter={}
         xpath = '//lease%s | //default:lease%s' % (XpathFilter.xpath(filter), XpathFilter.xpath(filter))
         lease_elems = xml.xpath(xpath)
         return Iotlabv1Lease.get_lease_objs(lease_elems)