Please help me I can not install ros package

edit

I’m using rosbag info from the command line but after running sudo apt-get install python-rosinstall it has broken python-rosbag and now I can’t get it to reinstall.

$ sudo apt-get install python-rosbag
The following packages have unmet dependencies:
python-rosbag : Depends: python-roslib but it is not going to be installed
E: Unable to correct problems, you have held broken packages.

$ sudo apt-get install python-roslib
The following packages have unmet dependencies:
python-roslib : Depends: catkin but it is not going to be installed
E: Unable to correct problems, you have held broken packages.
$ sudo apt-get install catkin
The following packages have unmet dependencies:
catkin : Depends: python-catkin-pkg but it is not going to be installed
E: Unable to correct problems, you have held broken packages.

$ sudo apt-get install python-catkin-pkg
python-catkin-pkg is already the newest version (0.3.6-1).
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.

I’ve tried everything from cleaning, update, removing all ROS packages but it’s stuck in circular dependency with catkin.