IPython startup error due to missing os.path.ismount

[Eero Aaltonen]

ipython-0.10.2 has worked with some versions of jython 2.5.x.
Unfortunately, trying it with the version of jython provided with the ubuntu package-manager yields the following
Traceback (most recent call last):
  File "ipython.py", line 10, in <module>
    import IPython.Shell
  File "/home/username/sw/ipython-0.10.2/IPython/__init__.py", line 58, in <module>
    __import__(name,glob,loc,[])
  File "/home/username/sw/ipython-0.10.2/IPython/ipstruct.py", line 17, in <module>
    from IPython.genutils import list2dict2
  File "/home/username/sw/ipython-0.10.2/IPython/genutils.py", line 79, in <module>
    from IPython.external.path import path
  File "/home/username/sw/ipython-0.10.2/IPython/external/path.py", line 84, in <module>
    class path(_base):
  File "/home/username/sw/ipython-0.10.2/IPython/external/path.py", line 790, in path
    ismount = os.path.ismount
AttributeError: 'module' object has no attribute 'ismount'

Also needed info:
1.
$ lsb_release -rd
Description: Ubuntu 13.10
Release: 13.10

2.
$ apt-cache policy jython
jython:
  Installed: 2.5.2-2

3. I was hoping it to work out-of-the-box

4. Traceback

ProblemType: Bug
DistroRelease: Ubuntu 13.10
Package: jython 2.5.2-2
ProcVersionSignature: Ubuntu 3.8.0-31.46-generic 3.8.13.8
Uname: Linux 3.8.0-31-generic x86_64
NonfreeKernelModules: wl
ApportVersion: 2.12.5-0ubuntu2
Architecture: amd64
Date: Thu Oct 24 16:17:52 2013
InstallationDate: Installed on 2013-09-10 (44 days ago)
InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424)
MarkForUpload: True
PackageArchitecture: all
SourcePackage: jython
UpgradeStatus: Upgraded to saucy on 2013-10-23 (0 days ago)

[Eero Aaltonen (ejn)]

Ipython shell starts after commenting out the offending line.