osx10.10.4 pcl_ros + brewed python trouble and solution

[mikepurvis]

osx10.10.4 pcl_ros + brewed python trouble and solution

[mikepurvis]

Yuck. Looks like PCL ships its own find code for Python:

https://github.com/PointCloudLibrary/pcl/blob/master/cmake/pcl_find_python.cmake

I'll add your suggestion as a temporary fix when I've had a chance to test it on a clean VM, but please consider filing a bug with PCL about this issue.

[kpykc]

I can try to fill a bug for PCL, but it's not completely clear for me how should they act on this issue. Do they need to change logic how they find python version?

[mikepurvis]

Hmm. I did a full build just now, with Python 2.7.10_2, and didn't have this issue. OTOH:

$ ls /usr/local/Cellar/python
2.7.10      2.7.10_2    2.7.9

So it's not clear that this wouldn't manifest on a system with only the newest Python installed. Doing a build on my Parallels cleanroom is an all-day affair, unfortunately, as it's extremely slow. But I'll try it at some point. :)

[kpykc]

@mikepurvis sorry for a (late)^2 reply, I just decided to do a brew upgrade, so all the bugs get out from the darkness again :/ (as usual, btw that is the reason I'm doing this rarely).

The issue is still persist for me.

For comparison:

0/indigo_desktop_ws> ls /usr/local/Cellar/python
2.7.10_2/

Unfortunately, I don't have such a clean-room :), as my disk space is really precious (only 256Gb)

Though, this issue may be related to the fact that my indigo workspace is screwed-up already. I have to check that versions of packages are up to date.

[mikepurvis]

Others are reporting problems with pcl_ros, too, so it's definitely not just you.

[mikepurvis]

Okay, so I just got a clean build of Yosemite+Indigo on my main machine, starting from a fresh Homebrew install.

$ ls /usr/local/Cellar/python
2.7.11
$ ls /usr/local/Cellar/pcl
HEAD

Looks like PCL is now set to install from head via the rosdep entry: https://github.com/ros/rosdistro/blob/22e12c568e3796e8b93a257fdaf28cc8dbc24341/rosdep/osx-homebrew.yaml#L250

Once PCL 1.8.0 is released (PointCloudLibrary/pcl#1373), this should be switched to that version, obviously.

[mikepurvis]

Should be fixed now by PCL 1.8.