from ftplib import FTP
import os
import xml.etree.ElementTree as ET
import xmltodict
import json

url = 'ftp.bom.gov.au'
filename = 'IDN65068.xml'

def writeline(data):
     filedata.write(data)
     filedata.write(os.linesep)

ftp = FTP(url)
ftp.login()
ftp.cwd('/anon/gen/fwo/')
filedata = open(filename, 'w')
ftp.retrlines('RETR %s' % filename, writeline)
filedata.close()

ftp.quit()

f = open(filename)
XML_content = f.read()

x = xmltodict.parse(XML_content)
j = json.dumps(x)

filename = filename.replace('.xml', '')
output_file = open(filename + '.json', 'w')
output_file.write(j)