Hi, Greg! Library author here. I'd be happy to add a configurable UserAgent. Perhaps the default would be a generic "waybackpack" but could be configurable to add contact info for the user. Does that sound about right? Prefer a different approach?

And, yep, the library is intentionally designed only to request one snapshot at a time.

waybackpack would be a great default; encouraging the actual user to add contact info would be better for you because we could complain to them instead of you :-)

Updated, merged, and pushed to PyPi as part of v0.1.0: https://github.com/jsvine/waybackpack/pull/5

Thanks again for the feedback. Really appreciate it — and the existence of the Internet Archive and Wayback Machine.