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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"IPython terminal prompt missing after upgrading from 2.3.1 to 5.1.0","articleBody":"I just recently upgraded IPython from 2.3.1 to 5.1.0. Right off the bat, the terminal command prompt is missing although I can type stuff in but it won't echo back either. Execution of the code seems to be working but I can't know for sure. By the way, if  I execute `ipython --simple-prompt` it seems to be working as usual with terminal prompts.\r\n\r\nI am aware of the [doc here](http://ipython.readthedocs.io/en/stable/whatsnew/version5.html#id1) but still have no clue why simply typing `ipython` won't show me the prompt.\r\n\r\nSee diagnostics info below.\r\n\r\n```bash\r\nroot@api-2712513810-9iimk:/api# ipython --debug\r\n[TerminalIPythonApp] IPYTHONDIR set to: /root/.ipython\r\n[TerminalIPythonApp] Using existing profile dir: '/root/.ipython/profile_default'\r\n[TerminalIPythonApp] Searching path ['/api', '/root/.ipython/profile_default', '/usr/local/etc/ipython', '/etc/ipython'] for config files\r\n[TerminalIPythonApp] Attempting to load config file: ipython_config.py\r\n[TerminalIPythonApp] Looking for ipython_config in /etc/ipython\r\n[TerminalIPythonApp] Looking for ipython_config in /usr/local/etc/ipython\r\n[TerminalIPythonApp] Looking for ipython_config in /root/.ipython/profile_default\r\n[TerminalIPythonApp] Looking for ipython_config in /api\r\nPython 3.5.2 (default, Nov 17 2016, 22:42:56) \r\nType \"copyright\", \"credits\" or \"license\" for more information.\r\n\r\nIPython 5.1.0 -- An enhanced Interactive Python.\r\n?         -\u003e Introduction and overview of IPython's features.\r\n%quickref -\u003e Quick reference.\r\nhelp      -\u003e Python's own help system.\r\nobject?   -\u003e Details about 'object', use 'object??' for extra details.\r\n\r\n[TerminalIPythonApp] Loading IPython extensions...\r\n[TerminalIPythonApp] Loading IPython extension: storemagic\r\n[TerminalIPythonApp] Starting IPython's mainloop...\r\n\r\n\r\n\r\n\r\n\r\nroot@api-2712513810-9iimk:/api# \r\nroot@api-2712513810-9iimk:/api# \r\nroot@api-2712513810-9iimk:/api# ipython --simple-prompt\r\nPython 3.5.2 (default, Nov 17 2016, 22:42:56) \r\nType \"copyright\", \"credits\" or \"license\" for more information.\r\n\r\nIPython 5.1.0 -- An enhanced Interactive Python.\r\n?         -\u003e Introduction and overview of IPython's features.\r\n%quickref -\u003e Quick reference.\r\nhelp      -\u003e Python's own help system.\r\nobject?   -\u003e Details about 'object', use 'object??' for extra details.\r\n\r\nIn [1]: exit\r\n\r\nroot@api-2712513810-9iimk:/api# python -c \"import IPython; print(IPython.sys_info())\"                  \r\n{'commit_hash': '5c9c918',\r\n 'commit_source': 'installation',\r\n 'default_encoding': 'UTF-8',\r\n 'ipython_path': '/usr/local/lib/python3.5/site-packages/IPython',\r\n 'ipython_version': '5.1.0',\r\n 'os_name': 'posix',\r\n 'platform': 'Linux-4.4.14-boot2docker-x86_64-with-debian-8.6',\r\n 'sys_executable': '/usr/local/bin/python',\r\n 'sys_platform': 'linux',\r\n 'sys_version': '3.5.2 (default, Nov 17 2016, 22:42:56) \\n[GCC 4.9.2]'}\r\n```","author":{"url":"https://github.com/ye","@type":"Person","name":"ye"},"datePublished":"2016-11-30T21:58:30.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":26},"url":"https://github.com/10071/ipython/issues/10071"}