Help! How do I get my Active Key? (Keys & Permissions page broken?)

I need to get my Steem "Active Key" for something. However, the "Keys & Permissions" page of the Steemit Wallet doesn't seem to be working correctly. When I go to reveal my active key, after clicking the "Reveal" button, I'm prompted for my username and password. But after entering it, the page just reloads and the active key isn't revealed; it still just shows a series of bullets in the field. This is happening in every browser I try.

I know there's supposed to be a CLI wallet that I can use to also show the keys, but that no longer seems to be available on the official "Steemit" GitHub page and I can't find it elsewhere. There is a Python library, but is refusing to install with a cryptic error message ("error: install-base or install-platbase supplied, but installation scheme is incomplete").

Thanks for any help you might be able to provide.