Retrieves emails for all users in a slack channel

slack_emails.py

'''
pip install slackclient

You can generate or find your personal Slack token here: https://api.slack.com/custom-integrations/legacy-tokens
'''

import sys
from slackclient import SlackClient

if len(sys.argv) != 3:
  print('Usage: python slack_emails.py token channel')
  exit(1)

auth_token = sys.argv[1]
specific_channel = sys.argv[2]

sc = SlackClient(auth_token)

members = None
for channel in sc.api_call('channels.list')['channels']:
  if channel['name'] == specific_channel:
    members = channel['members']
    
if not members:
  print('No members for channel {}'.format(specific_channel))
  exit(1)
else:
  for member in members:
    print(sc.api_call('users.info', user=member)['user']['profile']['email'])