Log Message:
IPython 5.4.1
Released a few hours after 5.4, fix a crash when \ 
backports.shutil-get-terminal-size is not installed.

IPython 5.4
IPython 5.4-LTS is the first release of IPython after the release of the 6.x \ 
series which is Python 3 only. It backports most of the new exposed API \ 
additions made in IPython 6.0 and 6.1 and avoid having to write conditional \ 
logics depending of the version of IPython.