from easysnmp import Session
import time
from datetime import datetime
import datetime
from collections import namedtuple


class NokiaPortdetails():
    #port ID to cli Interface

    Ports = {'35684352':'1/1/1','35717120':'1/1/2','35749888':'1/1/3','35782656':'1/1/4','35815424':'1/1/5',\
             '35848192':'1/1/6','35880960':'1/1/7','35913728':'1/1/8','35946496':'1/1/9','35979264':'1/1/10',\
             '36012032':'1/1/11','36044800':'1/1/12','36077568':'1/1/13','36110336':'1/1/14','36143104':'1/1/15',\
             '36175872':'1/1/16','36208640':'1/1/17','36241408':'1/1/18','36274176':'1/1/19','36306944':'1/1/20',\
             '36339712':'1/1/21','36372480':'1/1/22','36405248':'1/1/23','36438016':'1/1/24','36470784':'1/1/25',\
             '36503552':'1/1/26','36536320':'1/1/27','36569088':'1/1/28','36601856':'1/1/29','36634624':'1/1/30',\
             '36667392':'1/1/31','36700160':'1/1/32','36732928':'1/1/33','36765696':'1/1/34','36798464':'1/1/35',\
             '36831232':'1/1/36','36864000':'1/1/37','36896768':'1/1/38','36929536':'1/1/39','36962304':'1/1/40',\
             '36995072':'1/1/41','37027840':'1/1/42','37060608':'1/1/43','37093376':'1/1/44','37126144':'1/1/45',\
             '37158912':'1/1/46','37191680':'1/1/47','37224448':'1/1/48','37257216':'1/1/49','37289984':'1/1/50',\
             '37322752':'1/1/51','37355520':'1/1/52'}
	#Port Operations status dict		 
	Portstat = {'1':'Unknown',
                '2':'Operational',
                '3':'not-equipped',
                '4':'diagnosing',
                '5':'failed'
               }
	
    
    def __init__(self,host,community,version,timeout):
        self.host = host
        self.community = community
        self.version = version
        self.timeout = timeout 
	
    def get_Ports(self, value):
        return self.Ports.get(value,"other")

    def get_Portstat(self,value):
        return self.Portstat.get(value,"other")		

    def get_Opticaldetails(self):
		  #SNMP session, get the details to print below data
		  """
		  A:HYD-GP-SAS-1# show port optical 1/1/1
			
		  ===============================================================================
		  Optical Interface
		  ===============================================================================
			
		  Transceiver Data
			
		  Transceiver Status : operational
		  Transceiver Type   : SFP
		  TX Laser Wavelength: 1310 nm                Diag Capable         : yes
		  Connector Code     : LC                     
		  Manufacture date   : 2018/05/08             Media                : Ethernet
		  Serial Number      : KT18050466
		  Part Number        : KT-S1310-1G-20D
		  """
		  session = Session(hostname=host, community='cacti', version=2,timeout=5)
          tmnxPortOperStatus,tmnxPortTransceiverType,tmnxPortTransceiverLaserWaveLen,tmnxPortSFPConnectorCode,\
          tmnxPortSFPVendorManufactureDate,tmnxPortTransceiverDiagCapable,tmnxPortSFPMedia,tmnxPortSFPVendorSerialNum,\
          tmnxPortSFPVendorPartNum  = (list(session.bulkwalk('1.3.6.1.4.1.6527.3.1.2.2.4.2.1.'+c, \
                             non_repeaters=0, max_repetitions=50))for c in ('38','25','27','30','32','28','33','45','46'))
          
		  #namedtuple for PortOptical details
		  portOptical = namedtuple('portOptical','PortOperStatus PortTransceiverType PortTransceiverLaserWaveLen \
                          PortSFPConnectorCode PortSFPVendorManufactureDate PortTransceiverDiagCapable \
                          PortSFPMedia PortSFPVendorSerialNum PortSFPVendorPartNum')

          portOptical_inters = [portOptical(*uple) for uple in zip(*[tmnxPortOperStatus,tmnxPortTransceiverType,\
                      tmnxPortTransceiverLaserWaveLen,tmnxPortSFPConnectorCode,tmnxPortSFPVendorManufactureDate,\
                      tmnxPortTransceiverDiagCapable,tmnxPortSFPMedia,tmnxPortSFPVendorSerialNum,\
                      tmnxPortSFPVendorPartNum])]

          for Optical_data in portOptical_inters:
              return { 'host': host,
                       'portID': Optical_data.PortOperStatus.oid.split('.')[-1],             # spliting SNMP output to get portID
		               'interface':self.get_Ports(portID),                                   # passing PortID to get interface name like '1/1/1'
                       'PortOperStatus':self.get_Portstat(portOptical.PortOperStatus.value)  # getting operation status of port
	   	             }			
    
					
if __name__ == "__main__":
        hosts = ['10.124.209.66','10.124.209.74']
        for host in hosts:
            #print(host)
            details  = NokiaPortdetails.get_Opticaldetails(host)
            print(details)

Error:
Traceback (most recent call last):
  File "testclass5.py", line 62, in <module>
    details  = NokiaPortdetails.get_Opticaldetails(host)
  File "testclass5.py", line 53, in get_Opticaldetails
    'interface':self.get_Ports(portID),
AttributeError: 'str' object has no attribute 'get_Ports'