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Fails to find python3 empy
See original GitHub issueThe empy executable is now named empy3, and so catkin now fails to find it (observed on focal): https://github.com/ros/catkin/blob/a9672d78ec483c3a991a051c365da329fceaa9f2/cmake/empy.cmake#L25
The obvious fix would be to change the respective line to find_program(EMPY_EXECUTABLE NAMES empy empy3). I can prepare a PR for this, if desired.
The issue suddenly appeared in our CI last week, without any obvious change on the catkin side. No idea why it was working before…
Issue Analytics
- State:
- Created 3 years ago
- Reactions:2
- Comments:7 (4 by maintainers)
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Kinda poke 🙏🏿 What’s the recommended for beginners? Maybe
sudo ln -s /usr/bin/empy3 /usr/bin/empy?I had the same problem in ROS noetic. I use the following command to resolve this issue.
The problem is that catkin is either using the python2 executable or looking into the python2 directories. You either install python2 emp or tell catkin to use python3:
catkin_make -DPYTHON_EXECUTABLE=/usr/bin/python3 -DPYTHON_INCLUDE_DIR=/usr/include/python3.7m