#! /usr/bin/env python

import os
from slackclient import SlackClient
import pyrebase
import linkatos.firebase as fb
import linkatos.activities as activities

# starterbot environment variables
BOT_ID = os.environ.get("BOT_ID")
SLACK_BOT_TOKEN = os.environ.get("SLACK_BOT_TOKEN")

# instantiate Slack clients
slack_client = SlackClient(SLACK_BOT_TOKEN)

# firebase environment variables
FB_API_KEY = os.environ.get("FB_API_KEY")
FB_USER = os.environ.get("FB_USER")
FB_PASS = os.environ.get("FB_PASS")
fb_credentials = {'username': FB_USER, 'password': FB_PASS}

# initialise firebase
project_name = 'coses-acbe6'
firebase = fb.initialise(FB_API_KEY, project_name)


# Main
if __name__ == '__main__':

    # verify linkatos connection
    if slack_client.rtm_connect():
        parsed_url_message = {}
        expecting_url = True
        expecting_reaction = False

        while True:
            # note that url is returned to keep it over several cylcles in
            # whilst we wait for an answer
            (expecting_url, expecting_reaction, parsed_url_message) = \
                activities.event_consumer(
                    expecting_url,
                    expecting_reaction,
                    parsed_url_message,
                    slack_client,
                    fb_credentials,
                    firebase)
    else:
        print("Connection failed. Invalid Slack token or bot ID?")

#! /usr/bin/env python

import os
from slackclient import SlackClient
import pyrebase
import linkatos.firebase as fb
import linkatos.activities as activities


# Main
if __name__ == '__main__':
# starterbot environment variables
    BOT_ID = os.environ.get("BOT_ID")
    SLACK_BOT_TOKEN = os.environ.get("SLACK_BOT_TOKEN")

# instantiate Slack clients
    slack_client = SlackClient(SLACK_BOT_TOKEN)

# firebase environment variables
    FB_API_KEY = os.environ.get("FB_API_KEY")
    FB_USER = os.environ.get("FB_USER")
    FB_PASS = os.environ.get("FB_PASS")
    fb_credentials = {'username': FB_USER, 'password': FB_PASS}

# initialise firebase
    project_name = 'coses-acbe6'
    firebase = fb.initialise(FB_API_KEY, project_name)


# verify linkatos connection
    if slack_client.rtm_connect():
        parsed_url_message = {}
        expecting_url = True
        expecting_reaction = False

        while True:
# note that url is returned to keep it over several cylcles in
# whilst we wait for an answer
            (expecting_url, expecting_reaction, parsed_url_message) = \
                activities.event_consumer(
                    expecting_url,
                    expecting_reaction,
                    parsed_url_message,
                    slack_client,
                    fb_credentials,
                    firebase)
    else:
        print("Connection failed. Invalid Slack token or bot ID?")

Move initialisations inside main to avoid running them if not necessary