What is your system and mayavi version? Is mayavi installed? Anyway, thanks for creating the issue, it looks like a bug in setup.<br><br>In the meantime, you can try commenting out the mayavi version check in setup.py, around line 110.<br><br>r.<br><br>----- Reply message -----<br>From: &quot;kassbohm&quot; &lt;ka...@gmail.com&gt;<br>To: &quot;sfepy-devel&quot; &lt;sfep...@googlegroups.com&gt;<br>Subject: Trying Installation... AttributeError: LooseVersion instance has no attribute &#39;version&#39;<br>Date: Sun, Apr 15, 2012 14:43<br><br><br>Sorry, I also posted this question here: https://github.com/sfepy/sfepy/issues/180<br><br>Getting the following error during installation. How do I fix this?<br><br>$ python setup.py buildext --inplace<br>Traceback (most recent call last):<br>File &quot;setup.py&quot;, line 112, in<br>version_getter=_mayavi_version)<br>File &quot;/home/kassbohm/SFePy_Install/sfepy-2012.1/build_helpers.py&quot;,<br>line 320, in package_check<br>if checker(have_version) &lt; checker(version):<br>File &quot;/usr/lib/python2.7/distutils/version.py&quot;, line 296, in __cmp_<br>return cmp(self.version, other.version)<br>AttributeError: LooseVersion instance has no attribute &#39;version&#39;<br><br>-- <br>You received this message because you are subscribed to the Google Groups &quot;sfepy-devel&quot; group.<br>To post to this group, send email to sfepy...@googlegroups.com.<br>To unsubscribe from this group, send email to sfepy-devel...@googlegroups.com.<br>For more options, visit this group at http://groups.google.com/group/sfepy-devel?hl=en.<br><br>