[Python] how can I close a lingering API connection?

I have a simple Python program that queries a server via API. It uses the polygon-api-client module and returns stock market data in the form of a python list. The code is as follows:

from polygon import RESTClient
import confs
import json

ticker = 'AAPL'
multiplier = 5
timeframe = 'minute'
startdate = '2025-02-14'
enddate = '2025-02-14'

def createclient():

client = RESTClient(confs.API_KEY)

aggs = client.get_aggs(
ticker,
multiplier,
timeframe,
startdate,
enddate
)

print(aggs)


The code works, and in the terminal, I get a list of dictionaries.

The issue is that theconnection doesnt close. Immediately following the list, I get the following message in the terminal:

QSocketNotifier: Can only be used with threads started with QThread


And then a blinking cursor (instead of a prompt for another command.)

How can I close the connection from within my code so that it returns and I get a prompt in the terminal?

Also, in case it helps, the polygon-api-client module depends on httpx and wsdump, so I assume that it uses one or both to create the web socket.

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