suivi-bourse-app container exit after time.sleep

[rvoitenko]

Thanks for the project, I'm trying to play with it.
But for some reason container suivi-bourse-app exit after first run of main.py file - "exited with code 0". So it stores only one value for the stock and die :(.
After short investigation I found that it exit after time.sleep(60).
Do you know why this can happen ?