On Wed, Jan 4, 2012 at 5:24 AM, Timothy Wu <2hug...@gmail.com> wrote:
> Hi,
> I'm executing a R script via Python's os.system() (using Rscript executable
> which allow executing R script in the command line). This script makes use
> of library that will attempt to load up Tcl/Tk interface. Though I don't see
> anything even if I'm running the commands on Windows interactive R console,
> it will attempt to connect to the display server unsuccessfully during
> Galaxy's execution (and fail because $DISPLAY is not set). The program runs
> just fine since I have the output I wanted. But Galaxy sees error, and I'm
> suspecting it's because of this DISPLAY thing.
> I don't understand how Galaxy detects something goes wrong. If anything I
> thought it's my Python script return code that should matter. But how does
> Galaxy know?! And how do I fix it?
> Timothy

Currently you must suppress any warning messages to stderr,
see https://bitbucket.org/galaxy/galaxy-central/issue/325/

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