I enabled the ipython plugin in Leo 4.11. When I restart Leo, I get the following error.
C:\archives\leo-editor-latest>python launchleo.py
** isPython3: False
Leo 4.11 devel, build 5568, 2013-01-15 02:53:23 -0600
Python 2.7.0, qt version 4.7.4
Windows 6, 1, 7601, 2, Service Pack 1
leoID=randfb (in C:\Users\batcheld.RESEARCH\.leo)
load dir: C:\archives\leo-editor-latest\leo\core
global config dir: C:\archives\leo-editor-latest\leo\config
home dir: C:\Users\batcheld.RESEARCH
reading settings in C:\archives\leo-editor-latest\leo\config\leoSettings.leo
ipython plugin: can not import IPython.ipapi
reading settings in C:\Users\batcheld.RESEARCH\.leo\workbook.leo
loadOnePlugin: can not load enabled plugin: leo.plugins.ipython