python2.7 crashed with SIGSEGV in Tk_CreateWindowFromPath()

happens when check scitools available backends:

:~$ python
Python 2.7.6 (default, Feb 26 2014, 13:22:43)
[GCC 4.8.2] on linux2
Type "help", "copyright", "credits" or "license" for more information.

Imported NumPy 1.8.0.dev-95f7a46, SciPy 0.13.3, Matplotlib 1.3.1
Type "scientific" for more details.
>>> from scitools.std import *
>>> backends = available_backends()

Checking if you have all the Easyviz backends...

Could not import module "visit" - it is not installed on your system. You need to install the VisIt package. Also make sure the visit Python module is in the PYTHONPATH environment variable.

Could not import module "DX" - it is not installed on your system. You need to install the py2dx package.

Segmentation fault (core dumped)

ProblemType: Crash
DistroRelease: Ubuntu 14.04
Package: python2.7-minimal 2.7.6-7
ProcVersionSignature: Ubuntu 3.13.0-18.38-generic 3.13.6
Uname: Linux 3.13.0-18-generic x86_64
ApportVersion: 2.13.3-0ubuntu1
Architecture: amd64
CurrentDesktop: KDE
Date: Thu Mar 20 01:39:02 2014
ExecutablePath: /usr/bin/python2.7
InstallationDate: Installed on 2014-03-18 (1 days ago)
InstallationMedia: Kubuntu 14.04 LTS "Trusty Tahr" - Alpha amd64 (20140318)
ProcCmdline: python
Signal: 11
SourcePackage: python2.7
StacktraceTop:
 Tk_CreateWindowFromPath () from /usr/lib/x86_64-linux-gnu/libtk8.5.so.0
 vtkTkRenderWidget_Cmd () from /usr/lib/libvtkRenderingPythonTkWidgets.so
 TclInvokeStringCommand () from /usr/lib/x86_64-linux-gnu/libtcl8.5.so.0
 TclNRRunCallbacks () from /usr/lib/x86_64-linux-gnu/libtcl8.6.so
 ?? () from /usr/lib/python2.7/lib-dynload/_tkinter.so
Title: python2.7 crashed with SIGSEGV in Tk_CreateWindowFromPath()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm bumblebee cdrom dip lpadmin plugdev sambashare sudo