René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Bring back readline capability?","articleBody":"Even if it's not what is used by default, I've experienced and heard about enough other people experiencing pains with the prompt_toolkit-based input breaking people's workflows, that I think we should seriously consider bringing that code back in.\r\n\r\nI think it was a mistake to remove it altogether, and change the default at the same time.\r\n\r\n- [recent discussion on the Sage mailing list about this](https://groups.google.com/forum/#!topic/sage-devel/t2QucyHLQXg)\r\n- #9816 has several users reporting breakage\r\n- there are several users brought up prompt toolkit having regressions compared to readline in #9388 \r\n-  and similarly #10075 contains sentiment from a user saying this:  \"Multiline editing is a very nice feature. As a longtime vim and bash user, though, the switch to IPython 5.x and prompt_toolkit has been jarring.\"\r\n- #10085 lists a limitation and inconsistency of prompt_toolkit which [will not be addressed upstream](https://github.com/jonathanslenders/python-prompt-toolkit/issues/432#issuecomment-266311715).\r\n- #9944 is another issue that came up with the prompt-toolkit transition, which used to work in old readline based code, (though I understand Thomas recently proposed a fix for this in #10185, there is discussion there about the limitations of that, too).\r\n- #10211 is an emacs user affected a change that as far as I can tell is also attributable to the transition to prompt toolkit.\r\n- #10315 is another unexpected breakage in IPython 5, because prompt_toolkit uses a separate thread for completions (whereas completions had to be synchronous in readline, so jpype completions worked fine in IPython \u003c= 4). \r\n- #9948 - user unable to paste multi-line using tmux.\r\n- #10071 - randomly missing prompt after upgrade to IPython 5 inside docker (because terminal size was reported as 0x0)","author":{"url":"https://github.com/ivanov","@type":"Person","name":"ivanov"},"datePublished":"2017-03-01T19:45:14.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":38},"url":"https://github.com/10364/ipython/issues/10364"}