How to check status for jobs in list each n seconds till all jobs finished?

I'm having a problem with checking the status for all my Transcription job before start another step. I need to know when all jobs in myList are COMPLTETED or FAILED, if it is false retry again 5 seconds later, but currently it keeps forever running, there is my python script:

while True:
    final_list = []
    for job in myList:
        status = transcribe.get_transcription_job(TranscriptionJobName=job)
        final_list.append(status.get('TranscriptionJob').get('TranscriptionJobStatus'))

    if all(status in final_list for status in ['COMPLETED', 'FAILED']):
        break
    time.sleep(5)

Edit 1 Possible response status can be QUEUED, IN_PROGRESS, FAILED, COMPLETED

Edit 2 Omar was right I'm not extracting corretly the status of each job response but script still running forever.

Response syntax of get_transcription_job method is:

{
    'TranscriptionJob': {
        'TranscriptionJobName': 'string',
        'TranscriptionJobStatus': 'QUEUED'|'IN_PROGRESS'|'FAILED'|'COMPLETED',
        ...
    }
}

So instead of adding 'status' object which contains other fields, you need to append status.get('TranscriptionJob').get('TranscriptionJobStatus')

Change:

final_list.append(status)

By:

final_list.append(status.get('TranscriptionJob').get('TranscriptionJobStatus'))

UPDATE:

According to what are you trying to do, the condition should be:

if all(status in ['COMPLETED', 'FAILED'] for status in final_list):

Because you need to validate that allowed values list ('COMPLETED', 'FAILED') contains all the elements of 'final_list'.

Reference:

Boto3 get_transcription_job