Updates.

diff --git a/configs/-1222056212.xml b/configs/-1222056212.xml
new file mode 100644
index 0000000..57554c7
--- /dev/null
+++ b/configs/-1222056212.xml
@@ -0,0 +1 @@
+<object><attribute name='dns'>{{services.dns.ip}}</attribute><attribute name='gateway'>{{services.gateway}}</attribute><attribute name='proxy'>{{services.proxy}}</attribute><attribute name='template'>system</attribute></object>
\ No newline at end of file
diff --git a/configs/configsets/first.xml b/configs/configsets/first.xml
new file mode 100644
index 0000000..d403a30
--- /dev/null
+++ b/configs/configsets/first.xml
@@ -0,0 +1,3 @@
+<? xml version='1.0' ?>
+        <configset name='first'><config for='system'>-1222056212.xml</config>
+</configset>
\ No newline at end of file
diff --git a/configsets.py b/configsets.py
new file mode 100644
index 0000000..e792e9c
--- /dev/null
+++ b/configsets.py
@@ -0,0 +1,28 @@
+from os.path import join
+from copy import copy
+# import xmlserialize as xml
+
+class ConfigSet(dict):
+    def __init__(self,name):
+        dict.__init__(self)
+        self.name = name
+
+    def __call__(self,**kwargs):
+        new = copy(self)
+        new.update(kwargs)
+        return new
+
+    def save(self,path):
+        sfn = join(path,'configsets',self.name+'.xml')
+        xmldata = """<? xml version='1.0' ?>
+        <configset name='%s'>""" % self.name
+        for key in self:
+            cfg = self[key]
+            fn = "%s.xml" % hash(cfg)
+            xmldata += "<config for='%s'>%s</config>\n" % (key,fn)
+            cfg.save(join(path,fn), render=False)
+        xmldata += "</configset>"
+        f = open(sfn,'w')
+        f.write(xmldata)
+        f.close()
+
diff --git a/configtemplate.py b/configtemplate.py
index 7819c82..6093d78 100644
--- a/configtemplate.py
+++ b/configtemplate.py
@@ -1,4 +1,17 @@
+import inspect
+from copy import copy
 from lxml import etree
+import templates
+import xmlserialize as xml
+
+bytemplate = {}
+
+def add_config(template_name, cfg):
+    global bytemplate
+    if template_name in bytemplate:
+        bytemplate[template_name].append(cfg)
+    else:
+        bytemplate[template_name] = [cfg]

 def read_template(path):
     class ConfigTemplate(object):
@@ -8,13 +21,16 @@ def read_template(path):
                     setattr(self,k,v)
                 else:
                     raise AttributeError, "%s config has no attribute %s" % (self.__class__.__name__, k)
+            add_config(self.__class__.__name__, self)

         def __call__(self,**kwargs):
-            cfg = ConfigTemplate()
+            cfg = copy(self)
             d = dir(self)
             for k in d:
                 if not k.startswith('_'):
                     v = getattr(self,k)
+                    if inspect.ismethod(v):
+                        continue
                     setattr(cfg,k,v)
             for k,v in kwargs.items():
                 if k in d:
@@ -23,6 +39,19 @@ def read_template(path):
                     raise AttributeError, "%s config has no attribute %s" % (self.__class__.__name__, k)
             return cfg

+        def render(self):
+            return templates.do_render(self)
+
+        def save(self,path,render=True):
+            self.template = self.__class__.__name__
+            if render:
+                xmldata = self.render()
+            else:
+                xmldata = xml.serialize(self)
+            f = open(path,'w')
+            f.write(xmldata)
+            f.close()
+
     xmldata = etree.parse(path).getroot()
     name = xmldata.attrib['name']
     for node in xmldata:
@@ -33,3 +62,8 @@ def read_template(path):
     ConfigTemplate.__name__ = name

     return ConfigTemplate
+
+def read_config(path):
+    xmldata = open(path).read()
+    cfg = xml.deserialize(xmldata)
+    return cfg
diff --git a/templates.py b/templates.py
index 411223a..09f8736 100644
--- a/templates.py
+++ b/templates.py
@@ -3,5 +3,6 @@ from jinja2 import Template
 import xmlserialize as xml

 def do_render(conf):
-    return Template(xml.serialize(conf)).render(services=services,machine=machine)
+    xmldata = xml.serialize(conf)
+    return Template(xmldata).render(services=services,machine=machine)

diff --git a/test.py b/test.py
index a2aa3b9..5dbbc3a 100755
--- a/test.py
+++ b/test.py
@@ -7,6 +7,9 @@ from copy import copy
 import discovery
 import templates
 import configtemplate
+import configsets
+
+# import xmlserialize as XML

 #####################################
 # Internal section
@@ -86,12 +89,15 @@ system = configtemplate.read_template('configs/templates/system.xml')
 # Create an instance of system config
 scfg = system(proxy='{{services.proxy}}')
 print "First config:"
-print templates.do_render(scfg)
+print scfg.render()

 # create a copy of scfg, but with different dns setting
-ncfg = scfg(dns='{{services.dns.ip}}')
+ncfg = scfg(dns='{{services.dns}}')
 # chage gateway setting
 ncfg.gateway = '{{services.gateway}}'
 print "Second config:"
-print templates.do_render(ncfg)
+print ncfg.render()

+cset = configsets.ConfigSet('first')
+cset['system'] = ncfg
+cset.save('configs')
diff --git a/xmlserialize.py b/xmlserialize.py
index 55bf79e..0240a7a 100644
--- a/xmlserialize.py
+++ b/xmlserialize.py
@@ -1,3 +1,4 @@
+import inspect
 from lxml import etree
 from StringIO import StringIO

@@ -31,7 +32,10 @@ def serialize(ob):
     for name in dir(ob):
         if name.startswith('_'):
             continue
-        r += "<attribute name='%s'>%s</attribute>" % (name,serialize(getattr(ob,name)))
+        val = getattr(ob,name)
+        if inspect.ismethod(val):
+            continue
+        r += "<attribute name='%s'>%s</attribute>" % (name,serialize(val))
     r += '</object>'
     return r