The data set looks something like this, The data is from openstack ceilometer python API
[ <OldSample { counter_name': cpu_util', user_id': 7b', resource_id': ef', timestamp': 2015-07-02T08:13:55', counter_volume': 0.774, resource_metadata': { ramdisk_id': None', flavor.vcpus': 1', OS-EXT-AZ.availability_zone': nova', display_name': ubuntu-io', flavor.id': 596642d8-', status': active', ephemeral_gb': 0', flavor.name': m1.small.io', disk_gb': 20', kernel_id': None', image.id': 5776a360-', flavor.ram': 2048', host': host', flavor.ephemeral': 0', image.name': ubuntu-io', image_ref_url': http://b8dc', image.links': [ { 'href': 'http://19', 'rel': 'bookmark' } ]", cpu_number': 1', flavor.disk': 20', root_gb': 20', name': instance-000000d3', memory_mb': 2048', instance_type': 596642d', vcpus': 1', image_ref': 5776a36', flavor.links': [ { 'href': 'http://192.168.26.1', 'rel': 'bookmark' } ]" }, source': openstack', counter_unit': %', recorded_at': 2015-07-02T08:13:55.485000', project_id': 1670f', message_id': 4849', 4counter_type': gauge' }>] My code looks something like this auth=v2.Password(auth_url="http://", username="user", password="pass", tenant_id='id') # Pubnub instance initilize sess = session.Session(auth=auth,verify=False) # token = auth.get_token(sess) cclient = client.get_client(2, ceilometer_url="http:", token=token,verify=False) data = cclient.samples.list(meter_name ='cpu_util') thing = {} msg = {} cols = [] def __unicode__(self): return unicode(self.data) for row in data: col = {} col['x'] = row['timestamp'] col['y'] = row['counter_volume'] cols.append(col) msg['columns'] = cols thing['message'] = msg print thing print json.dumps(thing) My intended out out something like this message: { columns: [ ["x": 123, "y": "456"], ["y": 0.045, "x": "2015-06-30T15:53:55"] ] **here x is counter_volume and Y is timestamp** I need the output in this way because I want to plug this data into EON pubnub Charting Library. Problem is that no matter what I do it keeps on throwing me errors.I guess I need to learn some more how to manipulate list of dictionaries. -- https://mail.python.org/mailman/listinfo/python-list