Custom message with rosbuild & rospy [No module named *]

edit

Hello!

I'am trying to build a ros node which use a custom message. I have installed ROS Indigo on Ubuntu 12.04. The workspace I use is rosbuild and the code is in Python.

The problem I am facing with is that I'm unable to import the custom message I just created. The import statement for my message is the following:

from roi_py.msg import *

or

from roi_py.msg import sendMsg

Where "sendMsg" is the name of my message located in msg/sendMsg.msg

But the result is the following:

user@system:~/ROS_Workspace/sandbox/roi_py$ rosrun roi_py roi.py 
Traceback (most recent call last):
  File "/home/user/ROS_Workspace/sandbox/roi_py/scripts/roi.py", line 10, in <module>
    from roi_py.msg import *
ImportError: No module named roi_py.msg

In the same project I also have some CPP files. In those file I can use my messages and works. It looks like only Python is not recognizing my custom messages.

Also the package path seems to be good:

user@system:~/ROS_Workspace/sandbox/roi_py$ echo $ROS_PACKAGE_PATH 
/home/user/ROS_Workspace/sandbox:/opt/ros/indigo/share:/opt/ros/indigo/stacks

PS: However, the statement to include standard messages is working:

from std_msgs.msg import String

Do you guys have any idea?

PS: rosbuild_genmsg() is also uncommented on CMakeLists.txt

And the tree of roi_py looks like:

├── bin
├── CMakeLists.txt
├── lib
├── mainpage.dox
├── Makefile
├── manifest.xml
├── msg
│   ├── recvMsg.msg
│   └── sendMsg.msg
├── README.md
├── scripts
│  └── roi.py
└── src
    └── roi_py
        └── __init__.py