Traceback (most recent call last):


 "/Users/echan/Library/Python/3.7/lib/python/site-packages/urllib3/connection.py", line 159, in _new_conn

(self._dns_host, self.port), self.timeout, **extra_kw)


 "/Users/echan/Library/Python/3.7/lib/python/site-packages/urllib3/util/connection.py", line 80, in create_connection

raise err


 "/Users/echan/Library/Python/3.7/lib/python/site-packages/urllib3/util/connection.py", line 70, in create_connection

sock.connect(sa)
ConnectionRefusedError: [Errno 61] Connection refused

Traceback (most recent call last):


 "stack_plot.py", line 10, in <module>

data = json.load(open(args.inputs))
TypeError: invalid file: ['cohorts.json']
