<div dir="ltr">Hi Juan,<div><br></div><div>Do you have astropy installed? This error indicates that python was was unable to import astropy when it imported yt.</div><div><br></div><div>-Nathan</div></div><div class="gmail_extra">
<br><br><div class="gmail_quote">On Thu, Jul 24, 2014 at 2:03 PM, Juan Camilo Ibanez Mejia <span dir="ltr"><<a href="mailto:jibanezmejia@amnh.org" target="_blank">jibanezmejia@amnh.org</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div style="word-wrap:break-word">
Dear yt users,
<div><br>
</div>
<div>I was trying to generate a FITS file from one of my simulations but I obtained an error I </div>
<div>do not understand and do not know how to solve. I followed the procedure in:</div>
<div><a href="http://yt-project.org/docs/dev-3.0/visualizing/writing_fits_images.html" target="_blank">http://yt-project.org/docs/dev-3.0/visualizing/writing_fits_images.html</a></div>
<div>and in the moment I call <b>fib = FITSImageBuffer(cvg, fields=["density"])</b></div>
<div>I obtain the error:</div>
<div><br>
</div>
<div>
<pre style="padding:0px;font-size:14px;border-top-left-radius:0px;border-top-right-radius:0px;border-bottom-right-radius:0px;border-bottom-left-radius:0px;margin-top:0px;margin-bottom:0px;line-height:17.603300094604492px;word-break:break-all;word-wrap:break-word;white-space:pre-wrap;border:0px;vertical-align:baseline;background-color:rgb(255,255,255)">
<span style="color:rgb(139,0,0)">---------------------------------------------------------------------------</span>
<span style="color:rgb(139,0,0)">AttributeError</span> Traceback (most recent call last)
<span style="color:rgb(0,100,0)"><ipython-input-87-25a548a040e2></span> in <span style="color:rgb(70,130,180)"><module><span style="color:rgb(0,0,139)">()</span>
<span style="color:rgb(0,100,0)">----> 1<span style="color:rgb(165,42,42)"> </span>fib</span> <span style="color:rgb(165,42,42)">=</span> </span>FITSImageBuffer<span style="color:rgb(165,42,42)">(</span>cvg<span style="color:rgb(165,42,42)">,</span> fields<span style="color:rgb(165,42,42)">=</span><span style="color:rgb(165,42,42)">[</span><span style="color:rgb(0,0,139)">"density"</span><span style="color:rgb(165,42,42)">]</span><span style="color:rgb(165,42,42)">)</span><span style="color:rgb(165,42,42)"></span>
<span style="color:rgb(0,100,0)">/home/jcibanezm/codes/yt30/yt-x86_64/src/yt-hg/yt/utilities/fits_image.pyc</span> in <span style="color:rgb(70,130,180)">__init__<span style="color:rgb(0,0,139)">(self, data, fields, units, center, scale, wcs)</span>
<span style="color:rgb(0,100,0)"> 104</span> </span>mylog<span style="color:rgb(165,42,42)">.</span>info<span style="color:rgb(165,42,42)">(</span><span style="color:rgb(0,0,139)">"Making a FITS image of field %s"</span> <span style="color:rgb(165,42,42)">%</span> <span style="color:rgb(165,42,42)">(</span>key<span style="color:rgb(165,42,42)">)</span><span style="color:rgb(165,42,42)">)</span><span style="color:rgb(165,42,42)"></span>
<span style="color:rgb(0,100,0)"> 105</span> <span style="color:rgb(0,100,0)">if</span> first<span style="color:rgb(165,42,42)">:</span><span style="color:rgb(165,42,42)"></span>
<span style="color:rgb(0,100,0)">--> 106<span style="color:rgb(165,42,42)"> </span>hdu</span> <span style="color:rgb(165,42,42)">=</span> pyfits<span style="color:rgb(165,42,42)">.</span>PrimaryHDU<span style="color:rgb(165,42,42)">(</span>np<span style="color:rgb(165,42,42)">.</span>array<span style="color:rgb(165,42,42)">(</span>img_data<span style="color:rgb(165,42,42)">[</span>key<span style="color:rgb(165,42,42)">]</span><span style="color:rgb(165,42,42)">)</span><span style="color:rgb(165,42,42)">)</span><span style="color:rgb(165,42,42)"></span>
<span style="color:rgb(0,100,0)"> 107</span> first <span style="color:rgb(165,42,42)">=</span> False<span style="color:rgb(165,42,42)"></span>
<span style="color:rgb(0,100,0)"> 108</span> <span style="color:rgb(0,100,0)">else</span><span style="color:rgb(165,42,42)">:</span><span style="color:rgb(165,42,42)"></span>
<span style="color:rgb(139,0,0)">AttributeError</span>: 'NoneType' object has no attribute 'PrimaryHDU'
</pre>
</div>
<div><br>
</div>
<div>Any idea how can I solve this ?</div>
<div><br>
</div>
<div>thanks in advance</div>
<div><br>
</div>
<div>Juan</div>
<div><br>
</div>
<div>
<div>
<div>
<div style="color:rgb(0,0,0);font-variant:normal;letter-spacing:normal;line-height:normal;text-align:-webkit-auto;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;word-wrap:break-word">
<div style="font-family:Helvetica;font-size:medium;font-weight:normal;font-style:normal">
_____________________________</div>
<div style="font-family:Helvetica;font-weight:normal;font-style:normal"><span style="font-size:12px">Juan Camilo Ibañez Mejia</span><br style="font-size:12px">
<span style="font-size:12px">PhD candidate in physics</span><br style="font-size:12px">
<span style="font-size:12px">Institute für Theoretische Astrophysik</span><br style="font-size:12px">
<span style="font-size:12px">Heidelberg University</span><br style="font-size:12px">
<span style="font-size:12px"><a href="mailto:jibanez@zah.uni-heidelberg.de" target="_blank">jibanez@zah.uni-heidelberg.de</a></span><br style="font-size:12px">
<br style="font-size:12px">
<span style="font-size:12px">Research Scholar</span></div>
<div>
<div>Department of Astrophysics</div>
<div>American Museum of Natural History</div>
<div><a href="tel:%2B1-212-313-7435" value="+12123137435" target="_blank">+1-212-313-7435</a></div>
<div><a href="mailto:jibanezmejia@amnh.org" target="_blank">jibanezmejia@amnh.org</a></div>
<div>_____________________________</div>
</div>
</div>
</div>
<br>
</div>
</div>
</div>
<br>_______________________________________________<br>
yt-users mailing list<br>
<a href="mailto:yt-users@lists.spacepope.org">yt-users@lists.spacepope.org</a><br>
<a href="http://lists.spacepope.org/listinfo.cgi/yt-users-spacepope.org" target="_blank">http://lists.spacepope.org/listinfo.cgi/yt-users-spacepope.org</a><br>
<br></blockquote></div><br></div>