[Buildbot-devel] Confusion about WithProperties on Windows

Dustin J. Mitchell dustin at v.igoro.us
Thu Jul 12 12:43:21 UTC 2012

On Wed, Jul 11, 2012 at 7:21 PM, Chris Ball <s0454615 at sms.ed.ac.uk> wrote:
> Hi,
> I have a buildslave running on Windows. As part of a ShellCommand,
> I include this:
>  env={'PYTHONPATH':WithProperties("%(workdir)s\\X")})
> The path to my workdir is "C:\Users\username\npslavetest\Windows7_x64-mingw32".
> However, in the web status I see this:
>  PYTHONPATH=C:\Users\username\npslavetest/Windows7_x64-mingw32\X;
> I wasn't expecting to see a forward slash in there. Have I misunderstood
> WithProperties? Does the forward slash not matter?
> (My command is failing; I think it's because of PYTHONPATH being wrong,
> but I'm not at all sure yet...).

Python does things I don't understand with paths on Windows, but they
usually turn out right.

 72     def setBuilddir(self, builddir):
 73         assert self.parent
 74         self.builddir = builddir
 75         self.basedir = os.path.join(self.bot.basedir, self.builddir)
 76         if not os.path.isdir(self.basedir):
 77             os.makedirs(self.basedir)

it's using os.path.join, which is the right way.  I'm not sure why
Python chooses to use a / there instead of \.


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