KeyError: 'stop_time_update'

[mhgwilliams]

I've tried a few github projects using the mta api and am running into the same issue in multiple.
When running in normal configuration, nothing changed, I get this error:

Traceback (most recent call last):
  File "mta_notification.py", line 46, in <module>
    station_time_lookup(realtime_data, 'R36N')
  File "mta_notification.py", line 37, in station_time_lookup
    unique_arrival_times = unique_train_schedule['stop_time_update'] # arrival_times is a list of arrivals
KeyError: 'stop_time_update'

This is some sort of dictionary error, but I don't understand why it doesn't see this key when I can see it fine when printing that data.

Is it something to do with processing power? I'm running this on a Raspberry pi zero, quite low powered.

[effeappbw]

I've found one potential cause/band-aid, but I'm not experienced enough to fix the bug. Increasing the time interval in the following line helped me:

Change the following line
if time_until_train > 3: to if time_until_train > 10:

However, increasing it too much, say to 20 mins, results in the same error.