Revision history [back]

Are you trying to do this on Ubuntu Focal or Bionic? If you "only" have Python 3, then I believe catkin/catkin_tools#597 should not matter: on Focal, catkin_tools would be running using Python 3, so that would be the same interpreter as it should use in the workspace itself. The issue describes a situation where there is a difference between the interpreter running catkin_tools vs the interpreter used in the workspace.

As to Trollius: there just hasn't been a release yet of catkin_tools with the changes required to work with Python 3 afaict.

I'd suggest to try and install catkin_tools using pip, but from the repository.

Are you trying to do this on Ubuntu Focal or Bionic? If you "only" have Python 3, then I believe catkin/catkin_tools#597 should not matter: on Focal, catkin_tools would be running using Python 3, so that would be the same interpreter as it should use in the workspace itself. The issue describes a situation where there is a difference between the interpreter running catkin_tools vs the interpreter used in the workspace.

As to Trollius: there just hasn't been a release yet of catkin_tools with the changes required to work with Python 3 afaict.

I'd suggest to try and install catkin_tools using pip, but from the repository.repository:

pip3 install git+https://github.com/catkin/catkin_tools.git

Are you trying to do this on Ubuntu Focal or Bionic? If you "only" have Python 3, then I believe catkin/catkin_tools#597 should not matter: on Focal, catkin_tools would be running using Python 3, so that would be the same interpreter as it should use in the workspace itself. The issue describes a situation where there is a difference between the interpreter running catkin_tools vs the interpreter used in the workspace.

As to Trollius: there just hasn't been a release yet of catkin_tools with the changes required to work with Python 3 afaict.

I'd suggest to try and install catkin_tools using pip, but from the repository:

pip3 install --user git+https://github.com/catkin/catkin_tools.git

This works for me.

Are you trying to do this on Ubuntu Focal or Bionic? If you "only" have Python 3, then I believe catkin/catkin_tools#597 should not matter: on Focal, catkin_tools would be running using Python 3, so that would be the same interpreter as it should use in the workspace itself. The issue describes a situation where there is a difference between the interpreter running catkin_tools vs the interpreter used in the workspace.

As to Trollius: there just hasn't been a release yet of catkin_tools with the changes required to work with Python 3 afaict.PRs integrated which remove the dependency.

I'd suggest to try and install catkin_tools using pip, but from the repository:repository (so not a released version):

pip3 install --user git+https://github.com/catkin/catkin_tools.git

This works for me.

Note: be sure to remove this work-around after a new release of catkin_tools has been cut. Otherwise you will run into issues later.

Are Edit: as of 2020-12-25, it may be easier to make sure you have the ROS package repositories configured (the same ones you use to install ROS itself), and then:

sudo apt install python3-catkin-tools python3-osrf-pycommon

The osrf-pycommon package is a dependency, but not in the Debian control file, hence it doesn't get installed automatically.

Note: this is still a work-around of sorts, as the main problem has not been addressed yet.

Original answer: are you trying to do this on Ubuntu Focal or Bionic? If you "only" have Python 3, then I believe catkin/catkin_tools#597 should not matter: on Focal, catkin_tools would be running using Python 3, so that would be the same interpreter as it should use in the workspace itself. The issue describes a situation where there is a difference between the interpreter running catkin_tools vs the interpreter used in the workspace.

As to Trollius: there just hasn't been a release yet of catkin_tools with the PRs integrated which remove the dependency.

I'd suggest to try and install catkin_tools using pip, but from the repository (so not a released version):

pip3 install --user git+https://github.com/catkin/catkin_tools.git

This works for me.

Note: be sure to remove this work-around after a new release of catkin_tools has been cut. Otherwise you will run into issues later.