Regular expression intricacies: why do REs skip some matches?

[Chris Lasher]

Diez, John, Tim, and Ben, thank you all so much. I now "get it". It
makes logical sense now that the difficulty was actually in the
implementation of findall, which does non-overlapping matches. It also
makes sense, now, that one can get around this by using a lookahead
assertion. Thanks a bunch, guys; this really helped!

Chris