Roundup Robot added the comment: New changeset f09306f9fa6f by Raymond Hettinger in branch 'default': Issue #16394: Note the tee() pure python equivalent is only a rough approximation. https://hg.python.org/cpython/rev/f09306f9fa6f ---------- nosy: +python-dev _______________________________________ Python tracker <report@bugs.python.org> <http://bugs.python.org/issue16394> _______________________________________