Ros Hydro Install on raspbian [closed]

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I am trying to install ros on raspberry pi using instructions from the following page :
http://wiki.ros.org/ROSberryPi/Settin...
Following dependencies error are shown
pi@raspberrypi ~/ros_catkin_ws $ rosdep install --from-paths src --ignore-src --rosdistro hydro -y --os=debian:wheezy executing command [sudo apt-get install -y python-rosdep] Reading package lists... Done
Building dependency tree

Reading state information... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
python-rosdep : Depends: python:any (>= 2.7.1-0ubuntu2) but it is not installable
Depends: python-catkin-pkg but it is not going to be installed
Depends: python-rospkg but it is not going to be installed
Depends: python-rosdistro (>= 0.3.0) but it is not going to be installed
E: Unable to correct problems, you have held broken packages.
ERROR: the following rosdeps failed to install
apt: command [sudo apt-get install -y python-rosdep] failed