Martin Panter added the comment: My update includes a new section called Completion, with the following text: By default, Readline is set up to be used by “rlcompleter” to complete Python identifiers for the interactive interpreter. If the “readline” module is to be used with a custom completer, a different set of word delimiters should be set. I hope that is enough to call this fixed :) ---------- resolution: -> fixed stage: needs patch -> resolved status: open -> closed versions: +Python 3.5, Python 3.6 -Python 3.2, Python 3.3, Python 3.4 _______________________________________ Python tracker <report@bugs.python.org> <http://bugs.python.org/issue10796> _______________________________________