[issue38678] TypeError for Tutorial 10.3 Example 2

[Raymond Hettinger]

Change by Raymond Hettinger <raymond.hettinger at gmail.com>:


----------
keywords: +patch
pull_requests: +16712
stage: needs patch -> patch review
pull_request: https://github.com/python/cpython/pull/17207

_______________________________________
Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue38678>
_______________________________________