On Tue, 29 Aug 2017 07:09 am, Peter Otten wrote: > The lesson is that if you use a (sub)module you should never rely on an > implicit import. ... unless the module is documented as automatically importing the submodule. An example is os.path. -- Steve “Cheer up,” they said, “things could be worse.” So I cheered up, and sure enough, things got worse.