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Re: [PATCH] print debug information when subprocess.Popen subprocess.Popen

From: Masaru Tsuchiyama <m.tmatma_at_gmail.com>
Date: Sat, 03 Aug 2013 16:06:06 +0900

> One of your later patches had a *.txt extension but
> MIME type. It would be good if you could get your client to set text/*
> MIME type --- this actually changes the way the patch renders in many
> devs' clients, makes it easier for them to read/review/reply the patch.

My mail client can handle text/plain MIME type, but it always encodes an
file with uuencode.
I'll switch my client to Thunderbird. Thunderbird seems to be able to
handle such situation.

> WindowsError is an instance of OSError, and that method is documented as
> raising CalledProcessError, so you might do:
> except (OSError, CalledProcessError):
> > > > + # catch expeption, print information, and reraise
> > > > + print "current dir:", os.path.abspath(os.getcwd())
> > > > + print command

It seems to use subprocess.CalledProcessError instead of CalledProcessError.
I got NameError when I used the code.

     NameError: global name 'CalledProcessError' is not defined

> > >
> > > Makes me twitchy. svntest is a library and it shouldn't print, since
> > > this assumes no caller catches the exception. If possible I'd rather
> > > annotate the exception object and re-raise it.
> >
> > Could you tell me how to 'annotate an exception'?
> >
> I'm not completely sure. The 'raise from' syntax is not available. You
> could set a new attribute on the CalledProcessError or OSError instance,
> and have callers inspect that attribute _if available_ (hasattr/getattr).
> Or you could subclass those two and raise an instance of the subclass.

I'll try to find more appropriate method.

> > > I haven't looked at the context, but I assume this is to address the
> > > failure mode of running tests before the svn* binaries are built?
> >
> > I used checkout_tests.py, export_tests.py, prop_tests.py, and
> > update_test.py respectively. At the time, I needed to copy the test
> > binaries manually to the location which these scripts expected.
> So... what is a case in which the new information you added will be
> displayed? Is it "run one test on windows"? Is it "run tests with
> a typo in the argument of the --bin option"?

I was running these scripts on the root of the working directory.

When using prop_tests.py on the root directory, I got a file-not-found
I implemented the patch to find which file is not found.

Then I found it that atomic-ra-revprop-change.exe couldn't be found.
--bin option can't handle the location of atomic-ra-revprop-change.exe.
main.py expects that atomic-ra-revprop-change.exe is in the current
and can't change the location by command line option.

If I run the these scripts at Release\subversion\tests\cmdline, I don't
get a file-not-found error.

Received on 2013-08-03 09:06:53 CEST

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