Now that it exists, do you want this to be part of the swh web client?

As a nitpick, it's usually best not to pass passwords via argv by default, but rather ask them interactively (so that they do not appear in ps output, for instance).

Now that it exists, do you want this to be part of the swh web client?

Yes I intend to add that CLI tool in swh-web-client (I am currently writing the tests).

I will also create another diff to add authentication management in WebAPIClient class,
You will simply need to provide a refresh token (with long term expiration, amount of days to define)
retrieved with the CLI tool and access token renewal will be automatically handled.

As a nitpick, it's usually best not to pass passwords via argv by default, but rather ask them interactively (so that they do not appear in ps output, for instance).

Of course, I used getpass module in my implementation.