protobuf data to avro in python

I have data which is in protobuf format and im able to parse read,convert to json,dict in python, but i want to convert it to avro. How should i do

import time
import sys

import apache_beam as beam
from apache_beam.options.pipeline_options import PipelineOptions
import csv
import base64
from google.protobuf import timestamp_pb2
from google.protobuf.json_format import MessageToDict
from google.protobuf.json_format import MessageToJson

 import io

 import logging

 from google.cloud import storage
 import json
 from otherfiles import protobuff_pb2

 b64ProtoData = "proto formated data"

 b64ProtoData = b64ProtoData.replace('_', '/')
        b64ProtoData = b64ProtoData.replace('*', '=')
        b64ProtoData = b64ProtoData.replace('-', '+')
        finalbunary = base64.b64decode(b64ProtoData)
        log = protobuff_pb2.ProcessorLogProto()
        log.ParseFromString(finalbunary)
        jsonObj = MessageToJson(log)