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List:       grass-dev
Subject:    Re: [GRASS-dev] KeyError with python grass.raster_info() in GRASS 7
From:       Johannes Radinger <johannesradinger () gmail ! com>
Date:       2013-08-28 10:54:37
Message-ID: CABsGe_zuCsHO95w+N5c32J8B+sgGejReo9ww+axo1XPbXjdqrQ () mail ! gmail ! com
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oh sorry... problem solved! There was just the map "test3" not existing, so
the called r.info could not retrieve any information.
So there is no problem with raster_info, it was just my fault :(

/johannes


On Wed, Aug 28, 2013 at 12:30 PM, Johannes Radinger <
johannesradinger@gmail.com> wrote:

> Hi,
>
> when I try to get the max value of a raster map via python and
> grass.raster_info() in GRASS70 (revision 57523), I get following error:
>
>
> grass.raster_info("test3")['max']
> D1/1: grass.script.core.start_command(): r.info -gre map=test3
> Traceback (most recent call last):
>   File "<input>", line 1, in <module>
>   File "/usr/local/grass-7.0.svn/etc/python/grass/script/raster.py", line
> 80, in raster_info
>     kv[k] = float_or_null(kv[k])
> KeyError: 'min'
>
> Is that easy to fix?
>
> /Johannes
>

[Attachment #5 (text/html)]

<div dir="ltr">oh sorry... problem solved! There was just the map &quot;test3&quot; \
not existing, so<div>the called <a href="http://r.info">r.info</a> could not retrieve \
any information.</div><div>So there is no problem with raster_info, it was just my \
fault :(</div> <div><br></div><div>/johannes</div></div><div \
class="gmail_extra"><br><br><div class="gmail_quote">On Wed, Aug 28, 2013 at 12:30 \
PM, Johannes Radinger <span dir="ltr">&lt;<a href="mailto:johannesradinger@gmail.com" \
target="_blank">johannesradinger@gmail.com</a>&gt;</span> wrote:<br> <blockquote \
class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc \
solid;padding-left:1ex"><div dir="ltr"><div>Hi,<br><br>when I try to get the max \
value of a raster map via python and grass.raster_info() in GRASS70 (revision 57523), \
I get following error:<br> \
                <br><br>grass.raster_info(&quot;test3&quot;)[&#39;max&#39;]<br>
D1/1: grass.script.core.start_command(): <a href="http://r.info" \
target="_blank">r.info</a> -gre map=test3<br>Traceback (most recent call last):<br>  \
File &quot;&lt;input&gt;&quot;, line 1, in &lt;module&gt;<br>  File \
&quot;/usr/local/grass-7.0.svn/etc/python/grass/script/raster.py&quot;, line 80, in \
raster_info<br>

    kv[k] = float_or_null(kv[k])<br>KeyError: &#39;min&#39;<br><br></div><div>Is that \
easy to fix?<span class="HOEnZb"><font color="#888888"><br></font></span></div><span \
class="HOEnZb"><font color="#888888"><div><br></div> \
<div>/Johannes</div></font></span></div> </blockquote></div><br></div>



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