Connection to private node (one command tangle) refused

Question

I have created a one command tangle from this link: https://docs.iota.org/docs/utils/0.1/community/one-command-tangle/overview And using API given here: https://docs.iota.org/docs/node-software/0.1/iri/references/api-reference#broadcasttransactions.

EDIT: I forgot to mention that sudo docker-compose up was giving error, so I pulled coordinator-1264e19 from this link: https://hub.docker.com/r/iotacafe/compass/tags and the command sudo docker-compose upstarted working after this.

I'm trying to broadcast transaction from this node using Python Library, but I'm getting this error:

"urlopen error [WinError 10061] No connection could be made because the target machine actively refused it"

My code is:

import urllib.request
import urllib.parse
import json

command = {
  "command": "broadcastTransactions",
  "trytes": ["P9KFSJVGSPLXAEBJSHWFZLGP ..."]
}

stringified = json.dumps(command)

headers = {
    'content-type': 'application/json',
    'X-IOTA-API-Version': '1'
}

url="http://localhost:14265"
fo = urllib.parse.urlencode(command)
#fo = urllib2.urlunparse(command)
fo = fo.encode('utf-8')
request = urllib.request.Request(url, fo)
returnData = urllib.request.urlopen(request).read()

jsonData = json.loads(returnData)

print (jsonData)

My node is running on ubuntu machine: ]1)

This is very important work for me. If I can get any guidance regarding this error and how to resolve it, I would be very thankful.