[Paraview] ImportError: No module named readline

[Anton Shterenlikht]

Is this error serious or benign:

hector-xe6-9 coarray/tests> pvpython
Python 2.7.2 (default, Nov  9 2011, 15:37:53)
[GCC 4.1.2 20061115 (prerelease) (Debian 4.1.1-21)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
Traceback (most recent call last):
  File "/etc/pythonstart", line 7, in <module>
    import readline
ImportError: No module named readline
>>> from paraview.simple import *
paraview version 3.12.0, Date: 2011-07-26
>>>

Thanks

Anton