Glad to hear improvements to the shell ipython interface, especially up/down arrows on pasted code.

The most interesting part of this for me is that IPython 6 will not support Python 2.

>Projects such as Matplotlib and SymPy plan to drop support in the next few years, while a few projects like Scikit-Bio are already ahead of us, and should be Python 3 only soon.

This was also very surprising for the standard reasons, especially for a library like matplotlib. Glad to find Python moving forward. But what will companies stuck on Python2 do? Will libraries like numpy, matplotlib, and scipy all maintain a Python2 LTS?

> It is important to note that users will always be able to use a Python 2 kernel with the Jupyter Notebook, even when all of our projects have transitioned to Python 3

The way I understand this is that you will need python 3 to open ipython 6, but once running, you can interact with python2 and run and inspect python 2 code. I think that is fine. I can't imagine a modern scientific setup that can't readily create python 2 and 3 virtual environments.

This is going to take some getting used-to. The visuals (specifically the syntax highlighting and code completion) are very reminiscent of bpython.

On the other hand, I'm really happy to say farewell to readline. I've been stuck with readline v6.2.4.1 for ages just so I can have proper linewrap [0]. Of course this breaks virtualenv creation so you end up having to override the system readline [1]. Needless to say, this is well overdue.

[0]: https://github.com/ipython/ipython/issues/3329/

[1]: https://github.com/pypa/virtualenv/issues/4#issuecomment-966...

As someone who's never used ipython before, but used the standard python interactive terminal a lot, I'm very impressed!

The best feature I've discovered so far, is that when I want to change a function, I can simply 'up arrow', and I get the whole thing! Not a single line of the function, as in the normal python terminal. And if I write a syntax error while typing the function, it tells me immediately!

Does anybody have other examples of great features in ipython over the standard python terminal?

There is a particular behaviour in RStudio that I would really love to be able to do in python, but haven't found the combination of IDE/or notebook that will do it yet:

I want to execute through lines with cmd-return, or by highlighting and pressing cmd-return, and then see the change in the variables in a separate pane, like RStudio's environment pane. Bonus points if I can click on table variables in the environment pane and examine them in a separate tab with sorting and searching. Spyder comes closest but the execution part doesn't work as fluidly.

Thanks to ipython, radare2 (reverse engineering framework) now has a very useful python shell with autocompletion: https://asciinema.org/a/16ko4jd1e6kdrqkqjxeu248hm

"The awkward dependencies on pyreadline for Windows and gnureadline for Mac prompted Thomas Kluyver to replace the old machinery with a brand new pure-python readline replacement: prompt_toolkit."

I was waiting for something like this for years!

Multiline support - my prayers have been answered! Copying/pasting code and modifying multiline commands from your history was easily the most annoying thing about ipython.

Syntax highlighting and line navigation look awesome. The big news is this is the last release to support Python 2.x. Oh, and no more readline. Thank the gods.

Kudos to the iPython / Jupyter team for spearheading such an important dev-productivity tool. I use your software all the time. I also appreciate the effort to migrate everybody to Python3.

Is there a way to enable vi mode in iPython 5? Since it no longer depends on readline library, putting `set editing-mode vi` in ~/.inputrc file no longer seems to work.

Twitching on the floor... blinky blinky cursor, is there no way to make it go away..? looks in the feature list. Went back to 4.

Damn, the storm already hit python 2.x. Have to move on.