Critical error when setting iterm2 backend about matplotlib_iterm2 HOT 5 OPEN

Same error here, but it looks like you can hack around it by hijacking an existing valid backend key instead of trying to add new key iterm2 (on osx qt and qt4 wfm, but qt5 and gtk fail):

~/.ipython/profile_default/ipython_config.py

# Configuration file for ipython.

c = get_config()

from IPython.core.pylabtools import backends
backends['iterm2'] = 'module://matplotlib_iterm2.backend_iterm2'

from IPython.core.shellapp import backend_keys
backend_keys.append('iterm2')

c.TerminalIPythonApp.pylab = 'iterm2'

$ ipython
...
[TerminalIPythonApp] CRITICAL | Bad config encountered during initialization:
[TerminalIPythonApp] CRITICAL | The 'pylab' trait of a TerminalIPythonApp instance must be any of [u'auto', u'gtk', u'gtk3', u'inline', u'nbagg', u'notebook', u'osx', u'qt', u'qt4', u'qt5', u'tk', u'wx'] or None, but a value of u'iterm2' <type 'unicode'> was specified.

~/.ipython/profile_default/ipython_config.py

# Configuration file for ipython.

c = get_config()

from IPython.core.pylabtools import backends
backends['qt'] = 'module://matplotlib_iterm2.backend_iterm2'

#from IPython.core.shellapp import backend_keys
#backend_keys.append('iterm2')

c.TerminalIPythonApp.pylab = 'qt'

$ ipython
In [1]: from ggplot import *; ggplot(aes(x='date', y='beef'), data=meat) + geom_point()

from matplotlib_iterm2.

Same error still.

from matplotlib_iterm2.

1. What version of iPython/Jupyter do you have?
2. Can you check if it actually works if it not completely crashes. See #1

from matplotlib_iterm2.

ipython: 4.1.2
jupyter-core: 4.1.0

Here's a full pip freeze from my fresh virtualenv

alabaster==0.7.7
appnope==0.1.0
Babel==2.2.0
backports-abc==0.4
backports.ssl-match-hostname==3.5.0.1
certifi==2016.2.28
cycler==0.10.0
decorator==4.0.9
docutils==0.12
functools32==3.2.3.post2
futures==3.0.5
gnureadline==6.3.3
ipykernel==4.3.1
ipyparallel==5.0.1
ipython==4.1.2
ipython-genutils==0.1.0
ipywidgets==4.1.1
Jinja2==2.8
jsonschema==2.5.1
jupyter-client==4.2.1
jupyter-core==4.1.0
MarkupSafe==0.23
matplotlib==1.5.1
matplotlib-iterm2==0.1.0
mistune==0.7.2
nbconvert==4.1.0
nbformat==4.0.1
nose==1.3.7
notebook==4.1.0
numpy==1.10.4
path.py==8.1.2
pexpect==4.0.1
pickleshare==0.6
Pillow==3.1.1
ptyprocess==0.5.1
Pygments==2.1.3
pyparsing==2.1.0
python-dateutil==2.5.0
pytz==2015.7
pyzmq==15.2.0
qtconsole==4.2.0
requests==2.9.1
simplegeneric==0.8.1
singledispatch==3.4.0.3
six==1.10.0
snowballstemmer==1.2.1
Sphinx==1.3.6
sphinx-rtd-theme==0.1.9
terminado==0.6
testpath==0.3
tornado==4.3
traitlets==4.1.0

from matplotlib_iterm2.

@jdanbrown : your solution is confirmed to work in a pyenv 3.5.2 virtual environment

One suggestion for anyone wanting to test this: create a new ipython profile and this will leave the default ipython sessions clean.

    ipython profile create inline

Then edit $HOME/.ipython/profile_inline/ipython_config.py as mentioned by @jdanbrown
The matplotlib_iterm2 enabled profile can be tested so:

    ipython --profile=inline

from matplotlib_iterm2.