Thanks Matt.  Not sure where in the docs something like that might go, but if it's in there, I completely missed it.

Jon

On Fri, Dec 8, 2017 at 2:10 PM, <yt-users-request@lists.spacepope.org> wrote:
Date: Fri, 8 Dec 2017 09:14:01 -0600
From: Matthew Turk <matthewturk@gmail.com>
To: Discussion of the yt analysis package
        <yt-users@lists.spacepope.org>
Subject: Re: [yt-users] getting real scalar value
Message-ID:
        <CALO3=5HZT53jPgJeFYxhp-0FNU4gTaZo66sp9tqdZyzmkkMAAA@mail.gmail.com>
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Hi Jon,

You can see all of these in under ds.parameters, which is populated from
all the non-field values.

-Matt

On Fri, Dec 8, 2017 at 9:08 AM, Slavin, Jonathan <jslavin@cfa.harvard.edu>
wrote:

> Hi,
>
> I would like to get the value of the timestep from my FLASH data read in
> by yt.  In HDFView I can see the value of 'dt' under 'real scalars'.  Using
> yt to read in the data, though I don't see any way to access it, if it is
> contained in the ds.  The field list just shows the grid variables. I can
> get the absolute time via ds.current_time. There are a number of different
> items at the top level in HDFView, e.g. bflags, block size, sim info, that
> are not available, as far as I can tell, from the ds object. Am I missing
> something?  Is there any way to get yt to read in specific variables like
> dr (under "real scalars")?
>
> Thanks,
> Jon