[docs] [issue17902] Document that _elementtree C API cannot use custom TreeBuilder for iterparse or IncrementalParser

Roundup Robot added the comment: New changeset a5a5ba4f71ad by Eli Bendersky in branch '3.3': Issue #17902: Clarify doc of ElementTree.iterparse http://hg.python.org/cpython/rev/a5a5ba4f71ad New changeset 96f45011957e by Eli Bendersky in branch 'default': Issue #17902: Clarify doc of ElementTree.iterparse and IncrementalParser http://hg.python.org/cpython/rev/96f45011957e ---------- nosy: +python-dev _______________________________________ Python tracker <report@bugs.python.org> <http://bugs.python.org/issue17902> _______________________________________