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    Thanks, will try that out! And yeah, I'm using the default python
    install directory on my laptop, hence the sudo (I should start using
    virtualenv, etc, I guess) Sam<br>
    <br>
    <div class="moz-cite-prefix">On 16/11/14 20:33, Nathan Goldbaum
      wrote:<br>
    </div>
    <blockquote
cite="mid:CAJXewOnjpGoBiv6iqnVsh+pBPr=ocwst5ec4fT8ToaagzbeHNQ@mail.gmail.com"
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                      <div>Hey Sam,<br>
                        <br>
                        I'm unable to reproduce this over here using
                        "setup.py install" from 7d39049.  It's a little
                        suspicious that you needed to use sudo to
                        install things, but that might also be a red
                        herring depending on how your python environment
                        is set up.<br>
                        <br>
                      </div>
                      FWIW, here's the sequence of commands I would use:<br>
                      <br>
                    </div>
                    hg clone <a moz-do-not-send="true"
                      href="https://bitbucket.org/yt_analysis/yt">https://bitbucket.org/yt_analysis/yt</a><br>
                  </div>
                  <div>cd yt<br>
                  </div>
                  hg pull -r 7d39049 <a moz-do-not-send="true"
                    href="https://bitbucket.org/cosmosquark/yt"
                    target="_blank">https://bitbucket.org/cosmosquark/yt</a><br>
                </div>
                hg up 7d39049<br>
              </div>
              python setup.py develop<br>
              <br>
            </div>
            Depending on how you've set up your python installation,
            that last command might need a "sudo" so it can put the
            egg-info file for the installation into your path.<br>
            <br>
          </div>
          It might also be a good idea to clean out any old yt
          installations your have by repeatedly doing "pip uninstall
          yt".<br>
          <br>
          Python packaging, fun!<br>
          <br>
        </div>
        <div>-Nathan<br>
        </div>
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                        <div><br>
                          <br>
                          <div class="gmail_quote">On Sun, Nov 16, 2014
                            at 11:16 AM Sam Geen <<a
                              moz-do-not-send="true"
                              href="mailto:samgeen@astro.ox.ac.uk"
                              target="_blank">samgeen@astro.ox.ac.uk</a>>
                            wrote:<br>
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                              style="margin:0px 0px 0px
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                              <div bgcolor="#FFFFFF" text="#000000"> Hi
                                Nathan,<br>
                                <br>
                                I ran hg clone -r  7d39049 <a
                                  moz-do-not-send="true"
                                  href="https://bitbucket.org/cosmosquark/yt"
                                  target="_blank">https://bitbucket.org/cosmosquark/yt</a><br>
                                then inside the yt folder<br>
                                sudo python setup.py install<br>
                                <br>
                                I'll try your suggestion of cloning the
                                main repo first instead.<br>
                                <br>
                                Cheers,<br>
                                <br>
                                Sam</div>
                              <div bgcolor="#FFFFFF" text="#000000"><br>
                                <br>
                                <div>On 16/11/14 20:14, Nathan Goldbaum
                                  wrote:<br>
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                                <blockquote type="cite"> Hi Sam,<br>
                                  <br>
                                  Can you give a little bit more detail
                                  about how exactly you ran the setup
                                  script?<br>
                                  <br>
                                  The easiest way to do this is to clone
                                  the yt mercurial repository, pull
                                  Ben's changes into your local copy,
                                  then do "python setup.py develop" in
                                  the root of the repository.<br>
                                  <br>
                                  More detail here under "installing
                                  using pip or from source":<br>
                                  <br>
                                  <a moz-do-not-send="true"
                                    href="http://yt-project.org/doc/installing.html"
                                    target="_blank">http://yt-project.org/doc/installing.html</a><br>
                                </blockquote>
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                                <blockquote type="cite">
                                  <div class="gmail_quote">On Sun, Nov
                                    16, 2014 at 7:23 AM Sam Geen <<a
                                      moz-do-not-send="true"
                                      href="mailto:samgeen@googlemail.com"
                                      target="_blank">samgeen@googlemail.com</a>>

                                    wrote:<br>
                                  </div>
                                </blockquote>
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                                <blockquote type="cite">
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                                    <blockquote class="gmail_quote"
                                      style="margin:0px 0px 0px
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                                      rgb(204,204,204);padding-left:1ex">Hi,<br>
                                      <br>
                                      I'm trying to test a pull request,
                                      and when I try to run yt after<br>
                                      installing the setup script, it
                                      gives me this error (below). The
                                      folder<br>
                                      "extern" is in the dist-packages
                                      folder. The version I'm testing is<br>
                                      <a moz-do-not-send="true"
href="https://bitbucket.org/cosmosquark/yt/commits/7d390496848a01fa113d24d1af249fac14c759a7"
                                        target="_blank">https://bitbucket.org/cosmosquark/yt/commits/7d390496848a01fa113d24d1af249fac14c759a7</a><br>
                                      <br>
                                      Any ideas?<br>
                                      <br>
                                      Thanks,<br>
                                      <br>
                                      Sam<br>
                                      <br>
                                      In [2]: import yt<br>
                                      ---------------------------------------------------------------------------<br>
                                      AttributeError                   
                                              Traceback (most recent
                                      call last)<br>
                                      <ipython-input-2-59dfcfe9846c>
                                      in <module>()<br>
                                      ----> 1 import yt<br>
                                      <br>
                                      /usr/local/lib/python2.7/dist-packages/yt-3.1dev-py2.7-linux-x86_64.egg/yt/__init__.py<br>
                                      in <module>()<br>
                                            79 import numpy # In case
                                      anyone wishes to use it by name<br>
                                            80<br>
                                      ---> 81 from yt.funcs import \<br>
                                            82     iterable, \<br>
                                            83     get_memory_usage, \<br>
                                      <br>
                                      /usr/local/lib/python2.7/dist-packages/yt-3.1dev-py2.7-linux-x86_64.egg/yt/funcs.py<br>
                                    </blockquote>
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                                <blockquote type="cite">
                                  <div class="gmail_quote">
                                    <blockquote class="gmail_quote"
                                      style="margin:0px 0px 0px
                                      0.8ex;border-left:1px solid
                                      rgb(204,204,204);padding-left:1ex">
                                      in <module>()hg clone -r 
                                      7d39049 <a moz-do-not-send="true"
href="https://bitbucket.org/cosmosquark/yt" target="_blank">https://bitbucket.org/cosmosquark/yt</a></blockquote>
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                                <blockquote type="cite">
                                  <div class="gmail_quote">
                                    <blockquote class="gmail_quote"
                                      style="margin:0px 0px 0px
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                                      <br>
                                            25 from
                                      yt.utilities.exceptions import *<br>
                                            26 from yt.utilities.logger
                                      import ytLogger as mylog<br>
                                      ---> 27 import
                                      yt.extern.progressbar as pb<br>
                                            28 import yt.utilities.rpdb
                                      as rpdb<br>
                                            29 from yt.units.yt_array
                                      import YTArray, YTQuantity<br>
                                      <br>
                                      AttributeError: 'module' object
                                      has no attribute 'extern'<br>
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                                <blockquote type="cite"> <br>
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