[ros-users] rosdep + macports

Ken Conley kwc at willowgarage.com
Mon Nov 14 17:51:02 UTC 2011

On Mon, Nov 14, 2011 at 8:51 AM, Benjamin Charrow
<bcharrow at seas.upenn.edu> wrote:
> Hi all.
> I've been experiencing a slight problem with rosdep and macports.  Basically, after I run rosdep, a macports process consumes 100% of my CPU and commands I enter in the terminal aren't displayed (stdin is stolen).  I have macports 2.0.3 and am using the ros-1.6.6 tagged version of ros.  Has anyone else had this problem?
> Looking at the source, the issue seems to be a check for whether or not macports exists in the constructor of rosdep.installers.MacportsInstaller.  There's a popen command which opens up a macports session, but the process doesn't look like it's being killed.  This would explain why I/O is being stolen, though I'm not sure why my CPU usage spikes.  My quick fix was to just change the command to be "port help" (see diff bellow).
> Should I file a bug report?

Yes, please use the bug tracker to file patches instead of ros-users.
It's easier to track and follow up on.

There is a link to create new tickets at the bottom of the rosdep wiki page:


> Cheers,
> Ben
> SVN URL: https://code.ros.org/svn/ros/stacks/ros/tags/ros-1.6.6/tools/rosdep/src/rosdep
> bcharrow at amateur:/opt/ros/electric/ros/tools/rosdep/src/rosdep
> $ svn diff
> Index: installers.py
> ===================================================================
> --- installers.py       (revision 15358)
> +++ installers.py       (working copy)
> @@ -424,7 +424,7 @@
>             packages = packages.split()
>         try:
> -            pop = subprocess.Popen(['port'], stdout=subprocess.PIPE, stderr=subprocess.PIPE)
> +            pop = subprocess.Popen(['port', 'help'], stdout=subprocess.PIPE, stderr=subprocess.PIPE)
>         except OSError:
>             import traceback; traceback.print_exc()
>             print("There was an error running macports, make sure it is installed properly.", file=sys.stderr)
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