import python modules failed...what am I missing?

Question

Hello guys,

I have a question about importing my own python modules from a package I wrote.

I am using ROS Indigo on Ubuntu 14.04.

According to

1. setup.py manual
2. install python

Assuming I have a package called mape_misc under catkin_ws/src,

the structure of it is :

src/mape_misc/
├── CMakeLists.txt
    ├── package.xml
    ├── setup.py
    └── src
        └── mape_misc
            ├── __init__.py
            ├── MAPEopcode.py

I wanted to import mape_misc.MAPEopcode in another python packages. Supposing there is a class OPCODE in MAPEopcode.py

However, in the other package, I got

from mape_misc.MAPEopcode import OPCODE
ImportError: No module named mape_misc.MAPEopcode

I'm stuck here right now, the content of my setup.py is :

#!/usr/bin/env python
from distutils.core import setup
from catkin_pkg.python_setup import generate_distutils_setup

setup_args = generate_distutils_setup(
    package=['mape_misc'],
    package_dir={'': 'src'},
)

setup(**setup_args)

In mape_misc, CMakeLists.txt is:

cmake_minimum_required(VERSION 2.8.3)
project(mape_misc)
find_package(catkin REQUIRED COMPONENTS
  rospy
)
catkin_python_setup()

catkin_package(
  CATKIN_DEPENDS rospy
)

I don't think I need to have a install() because I just want to use modules.

In MAPEopcode I just defined a Enum.

I've tried to clean the build and redo catkin_make, but still no luck.

Thanks for any advice!

Edit 1: I thought for any correct import, catkin_ws/src/mape_misc/src should be in PYTHONPATH. However, after I built everything and source devel/setup.bash, echo $PYTHONPATH showed only: /home/xbot/catkin_ws/devel/lib/python2.7/dist-packages:/opt/ros/indigo/lib/python2.7/dist-packages:/home/xbot/.local/lib/python2.7/site-packages:/usr/local/lib/python2.7/dist-packages

---

Originally posted by mutantRobot on ROS Answers with karma: 21 on 2017-08-28

Post score: 0

Answer 1

OK I finally found the problem ------- a really stupid mistake in setup.py, which should contain:

packages = ['xxxx']

not

package = ['xxxx']

Now everything is working.

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Originally posted by mutantRobot with karma: 21 on 2017-08-30

This answer was ACCEPTED on the original site

Post score: 1