foo.py

#!/usr/bin/env python

import time, sys
from electroncash import SimpleConfig, Network
from electroncash.util import print_msg, json_encode

tx = sys.argv[1]
c = SimpleConfig()
network = Network(c)
network.start()

while network.is_connecting():
    time.sleep(0.1)

if not network.is_connected():
    print_msg("Daemon is not connected")

callback = lambda response: print_msg(json_encode(response.get('result')))
network.send([('blockchain.transaction.get', [tx])], callback)

while network.is_connected():
    time.sleep(2)