X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=sfa%2Futil%2Fstorage.py;h=9033434f6cf8d146df5d147a29a2e147db0b5895;hb=ecc85e0b923922cf7117d29b380f5284edb88f21;hp=ee2e41b88cb0e8dcfd48bab3d69b2cbd346c2ce0;hpb=70f4308757e799aeb96545f5e0a22c96dc8633c2;p=sfa.git

diff --git a/sfa/util/storage.py b/sfa/util/storage.py
index ee2e41b8..9033434f 100644
--- a/sfa/util/storage.py
+++ b/sfa/util/storage.py
@@ -1,5 +1,6 @@
 import os
 from sfa.util.xml import XML
+
 class SimpleStorage(dict):
     """
     Handles storing and loading python dictionaries. The storage file created
@@ -8,8 +9,8 @@ class SimpleStorage(dict):
     db_filename = None
     type = 'dict'
     
-    def __init__(self, db_filename, db = {}):
-
+    def __init__(self, db_filename, db = None):
+        if db is None: db={}
         dict.__init__(self, db)
         self.db_filename = db_filename
     
@@ -18,8 +19,8 @@ class SimpleStorage(dict):
             db_file = open(self.db_filename, 'r')
             dict.__init__(self, eval(db_file.read()))
         elif os.path.exists(self.db_filename) and not os.path.isfile(self.db_filename):
-            raise IOError, '%s exists but is not a file. please remove it and try again' \
-                           % self.db_filename
+            raise IOError('%s exists but is not a file. please remove it and try again' \
+                           % self.db_filename)
         else:
             self.write()
             self.load()
@@ -48,8 +49,8 @@ class XmlStorage(SimpleStorage):
             xml = XML(self.db_filename)
             dict.__init__(self, xml.todict())
         elif os.path.exists(self.db_filename) and not os.path.isfile(self.db_filename):
-            raise IOError, '%s exists but is not a file. please remove it and try again' \
-                           % self.db_filename
+            raise IOError('%s exists but is not a file. please remove it and try again' \
+                           % self.db_filename)
         else:
             self.write()
             self.load()