如何在ipython笔记本中启用换行

I have been trying to enable line wrapping in ipython notebook. I googled it with no results and i typed ipython notebook --help in a terminal. This gives me a ton of configuration commands for a config file, but no line wrapping. Does anyone know if ipnotebook has this feature and if so how to enable it? Your help would be greatly appreciated. Thank you.I have been trying to enable line wrapping in i