IPython terminal prompt missing after upgrading from 2.3.1 to 5.1.0
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.
I am aware of the doc here but still have no clue why simply typing ipython won't show me the prompt.
See diagnostics info below.
root@api-2712513810-9iimk:/api# ipython --debug [TerminalIPythonApp] IPYTHONDIR set to: /root/.ipython [TerminalIPythonApp] Using existing profile dir: '/root/.ipython/profile_default' [TerminalIPythonApp] Searching path ['/api', '/root/.ipython/profile_default', '/usr/local/etc/ipython', '/etc/ipython'] for config files [TerminalIPythonApp] Attempting to load config file: ipython_config.py [TerminalIPythonApp] Looking for ipython_config in /etc/ipython [TerminalIPythonApp] Looking for ipython_config in /usr/local/etc/ipython [TerminalIPythonApp] Looking for ipython_config in /root/.ipython/profile_default [TerminalIPythonApp] Looking for ipython_config in /api Python 3.5.2 (default, Nov 17 2016, 22:42:56) Type "copyright", "credits" or "license" for more information. IPython 5.1.0 -- An enhanced Interactive Python. ? -> Introduction and overview of IPython's features. %quickref -> Quick reference. help -> Python's own help system. object? -> Details about 'object', use 'object??' for extra details. [TerminalIPythonApp] Loading IPython extensions... [TerminalIPythonApp] Loading IPython extension: storemagic [TerminalIPythonApp] Starting IPython's mainloop... root@api-2712513810-9iimk:/api# root@api-2712513810-9iimk:/api# root@api-2712513810-9iimk:/api# ipython --simple-prompt Python 3.5.2 (default, Nov 17 2016, 22:42:56) Type "copyright", "credits" or "license" for more information. IPython 5.1.0 -- An enhanced Interactive Python. ? -> Introduction and overview of IPython's features. %quickref -> Quick reference. help -> Python's own help system. object? -> Details about 'object', use 'object??' for extra details. In [1]: exit root@api-2712513810-9iimk:/api# python -c "import IPython; print(IPython.sys_info())" {'commit_hash': '5c9c918', 'commit_source': 'installation', 'default_encoding': 'UTF-8', 'ipython_path': '/usr/local/lib/python3.5/site-packages/IPython', 'ipython_version': '5.1.0', 'os_name': 'posix', 'platform': 'Linux-4.4.14-boot2docker-x86_64-with-debian-8.6', 'sys_executable': '/usr/local/bin/python', 'sys_platform': 'linux', 'sys_version': '3.5.2 (default, Nov 17 2016, 22:42:56) \n[GCC 4.9.2]'}