$ ipython --pylab
Python 3.4.3 (default, Mar 25 2015, 17:13:50) 
Type "copyright", "credits" or "license" for more information.

IPython 3.0.0 -- An enhanced Interactive Python.
?         -> Introduction and overview of IPython's features.
%quickref -> Quick reference.
help      -> Python's own help system.
object?   -> Details about 'object', use 'object??' for extra details.
romUsing matplotlib backend: Qt5Agg
Using matplotlib backend: Qt5Agg
 se
In [1]: from seaborn import *; tsplot([1, 2])
Out[1]: <matplotlib.axes._subplots.AxesSubplot at 0x7f0262043d30>
# <------ click on green tick
In [2]: Traceback (most recent call last):
  File "/usr/lib/python3.4/site-packages/matplotlib/backends/backend_qt5.py", line 653, in edit_parameters
    figureoptions.figure_edit(axes, self)
  File "/usr/lib/python3.4/site-packages/matplotlib/backends/qt_editor/figureoptions.py", line 146, in figure_edit
    apply=apply_callback)
  File "/usr/lib/python3.4/site-packages/matplotlib/backends/qt_editor/formlayout.py", line 510, in fedit
    dialog = FormDialog(data, title, comment, icon, parent, apply)
  File "/usr/lib/python3.4/site-packages/matplotlib/backends/qt_editor/formlayout.py", line 416, in __init__
    parent=self)
  File "/usr/lib/python3.4/site-packages/matplotlib/backends/qt_editor/formlayout.py", line 389, in __init__
    if len(data[0]) == 3:
IndexError: list index out of range

If you suspect this is an IPython bug, please report it at:
    https://github.com/ipython/ipython/issues
or send an email to the mailing list at ipython-dev@scipy.org

You can print a more detailed traceback right now with "%tb", or use "%debug"
to interactively debug it.

Extra-detailed tracebacks for bug-reporting purposes can be enabled via:
    %config Application.verbose_crash=True