For the first issue: I understand. Thanks.
As for the second, There is no shell=True for me in the demo but it is present in the code you sent. So maybe it is just a bug in the presentation somewhere.
As for the second, There is no shell=True for me in the demo but it is present in the code you sent. So maybe it is just a bug in the presentation somewhere.
We'll also take a look at what's causing this. It might be a browser issue.