[docs] [issue21995] Idle: review 'missing' attributes of pseudofiles

Terry J. Reedy <tjreedy@udel.edu> added the comment: I changed title to 'review' (TextIOBase doc and StringIO as a pure text implementation). ---------- title: Idle: pseudofiles have no buffer attribute. -> Idle: review 'missing' attributes of pseudofiles versions: +Python 3.9 -Python 2.7, Python 3.4, Python 3.5 _______________________________________ Python tracker <report@bugs.python.org> <https://bugs.python.org/issue21995> _______________________________________