R. David Murray <rdmurray@bitdance.com> added the comment:
I've opened issue 11479 with a proposed patch to the tutorial along the lines suggested by Graham.
Which is good, for people that use the tutorial. I jump straight to
the reference guide, usually, because of so many years of experience
with other languages. But I was surprised you used .strip() instead
of [:-1] which is shorter and I would expect it to be more efficient
also.