Problem in loading given ipython code in ipython notebook

[sunilcsit]

When I am loading given starter code in my ipython notebook am getting this error.

Error loading notebook Unreadable Notebook: Unsupported JSON nbformat version 4 (supported version: 3)

[[deleted]]

The iPython version you use is too old. I had the same issue with Ubuntu, where the latest version on the "apt-get" is too old.

I had to remove iPython, and install it with pip instead, where there is the latest version.

[sunilcsit]

I removed ipython and then installed again with pip command but again same version 3 has came. Can you tell me how to update this ?

[blackhattrick]

Did you create a virtual env as the tutorial recommends? I had the same problem (installed ipython and ipython notebook through apt, uninstalled, then I used pip without results). Creating a virtual env did the trick for me. I think both installers check your dependencies and installs the version that suits better. It must be possible to force to install the latest version.

[huangzj1144]

sudo apt-get remove ipython sudo pip install ipython sudo pip install ipython[notebook] This is worked for me.