user_hash_dump.py

#! /usr/bin/env python

import os
import sys

import requests

SLACK_API_TOKEN = os.environ['SLACK_API_TOKEN']

users_list = requests.get('https://slack.com/api/users.list?token=%s' % SLACK_API_TOKEN).json()

if users_list['ok'] is not True:
    print('Slack API call failed')
    sys.exit(1)

for user in users_list['members']:
    name = 'NA'
    if 'name' in user:
            name = user['name']
    print("User: {} ID: {}".format(name, user['id']))