len doesn't work on query result

With web.py current master, using len on db results is not working.

$ git log -n 1 --oneline
e90573e (HEAD -> master, origin/master, origin/HEAD, anandology/master) Reformat with Black :(

$ python
Python 3.7.4 (v3.7.4:e09359112e, Jul  8 2019, 14:54:52)
[Clang 6.0 (clang-600.0.57)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> import web

>>>
>>> db = web.database(dbn="postgres", db="webpy")
>>>
>>> len(db.query("SELECT 1"))
0.0 (1): SELECT 1
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
TypeError: object of type 'IterBetter' has no len()

There is already a test for this as part of the test suite, but not sure how Travis is letting it go.