Slack messages from CRON

config.json

{
    "token":"xxxxxxxxxx",
    "subdomain":"subdomain",
    "username":"Eventbot",
    "text":"<!everyone> here is an important link: <https://modest.com/|modest.com>",
    "channel":"#general",
    "icon": ":ghost:"

}

slack_timed_events.py

import requests
from datetime import datetime
import json
import urllib, hashlib
import sys

"""
Send a message to slack at a certain cron'd time based on a config.json
"""

config = sys.argv[1]

json_data=open(config)
config_data = json.load(json_data)

today = datetime.now()
if today.weekday() <=4:
    url = "https://"+config_data['subdomain']+".slack.com/services/hooks/incoming-webhook?token="+config_data['token']

    payload={"channel": config_data['channel'], "username": config_data['username'], "text": config_data['text'], "icon_emoji": config_data['icon']}

    r = requests.post(url, data=json.dumps(payload))
    print r.content