To connect the raspberry pi with Dylos serial to xively IOT, based on https://sites.google.com/site/benhewitttechnology/raspberry-pi-with-xivley the written code was this

#!/usr/bin/env python
from __future__ import division
import time
import os
import eeml
import sys
import syslog
import json
import serial
import subprocess
import re

a = 0.02832
ser = serial.Serial('/dev/ttyUSB0', 9600, timeout=60)
def getCPUtemperature():
    res = os.popen('vcgencmd measure_temp').readline()
    return(res.replace("temp=","").replace("'C\n",""))

def getDiskSpace():
    p = os.popen("df -h /")
    i = 0
    while 1:
        i = i +1
        line = p.readline()
        if i==2:
            return(line.split()[1:5])

def getRAMinfo():
    p = os.popen('free')
    i = 0
    while 1:
        i = i + 1
        line = p.readline()
        if i==2:
            return(line.split()[1:4])

var = 1
while var ==1:
   output = subprocess.check_output(["./Adafruit_DHT", "11", "4"]);
   matches = re.search("Temp =\s+([0-9.]+)", output)
   if (not matches):
         time.sleep(3)
         continue
   temp = float(matches.group(1))
   matches = re.search("Hum =\s+([0-9.]+)", output)
   if (not matches):
         time.sleep(3)
         continue
   humidity = float(matches.group(1))
   break  

def dylos_ser():
     dylos = ser.readline() 
     return dylos


API_KEY = 'YgMnMSPFIiAIf8ATTVMC3eUUb4CTrc5adT7pwvopZfbFB976'
FEED = 62987336
API_URL = '/v2/feeds/{feednum}.xml'.format(feednum = FEED)

CPU_temp = getCPUtemperature()
DISK_stats = getDiskSpace()
DISK_total = DISK_stats[0]
DISK_free  = DISK_stats[1]
DISK_perc  = DISK_stats[3]
RAM_stats = getRAMinfo()
RAM_total = round(int(RAM_stats[0]) / 1000,1)
RAM_used  = round(int(RAM_stats[1]) / 1000,1)
RAM_free  = round(int(RAM_stats[2]) / 1000,1)
dylos_red = dylos_ser()
dylos_red1 = dylos_red.split(",")
dylos_red11 = dylos_red1[0]
dylos_red22 = dylos_red1[1]
dylos_05l =float(dylos_red11) / a
dylos_25l =float(dylos_red22) / a
dylos_05ls = str(round(dylos_25l))
dylos_25ls = str(round(dylos_05l))
tempS = str(temp)
HumS = str(humidity)

# open up your feed
pac = eeml.Pachube(API_URL, API_KEY)

#compile dataunit=eeml.NoOfPm3())])

pac.update([eeml.Data("CPU_Temperature", CPU_temp, unit=eeml.Celsius())])
pac.update([eeml.Data("Disk_free", DISK_free, unit=eeml.Celsius())])
pac.update([eeml.Data("RAM__Used", RAM_used, unit=eeml.Celsius())])
pac.update([eeml.Data("RAM_Free", RAM_free, unit=eeml.Celsius())])
pac.update([eeml.Data("Dylos_2.5l", dylos_05ls, unit=eeml.NoOfPm3())])
pac.update([eeml.Data("Dylos_0.5l", dylos_25ls, unit=eeml.NoOfPm3())])
pac.update([eeml.Data("Humidity", HumS, unit=eeml.RH())])
pac.update([eeml.Data("Temperature", tempS, unit=eeml.Celsius())])

#print dylos_red
#print dylos_red1
print dylos_25ls
print dylos_05ls
print dylos_red11
print dylos_red22
print humidity
print temp
# send data to cosm
pac.put()

The raspberry pi connected with Dylos and DHT11 temperature-humidity sensor DHT11 is managed based on Adafruit tutorial, and the code is using subprocess to get the Tempa and RH value from raspberry pi GPIO.The xively code based on the EEML, a framework for real-time sensor management, in which the units for each parameter has to be edited to called in xively, So that the EEML code was specifying the unit for DYLOS reading edited. The code of EEML for python, installed as python package, the source has to be edited for including the customized units of Dylos. this file need to be edited is /usr/local/lib/python2.7/dist-packages/Python_EEML-0.1-py2.7.egg/eeml/__init__.py the added code was

class NoOfPm3(Unit):
    """
    NoOfPm3 unit class.
    """

    def __init__(self):
        """
        Initialize the `Unit` parameters with NoOfPm3.
        """
        Unit.__init__(self, 'NoOfPm3', 'contextDependentUnits', 'No.Of.particle/m3')
class NoOfPo1cuf(Unit):
    """
    NoofP01cuf unit class.
    """

    def __init__(self):
        """
        Initialize the `Unit` parameters with NoOfP01cuf.
        """
        Unit.__init__(self, 'NoofP01cuf', 'contextDependentUnits', 'No.Of.particleper01cuf')