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POTests not being convered by 2to3 in setup.py?
 

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    <p>I have a setup.py that needs to support both Python 2 and 3.</p> <p>The code currently works and is installable in Python 2.x</p> <p>If I add the <code>use_2to3 = True</code> clause to my setup.py, then the module can be <em>installed</em> in Python 3, however, doing a:</p> <pre><code>python setup.py test </code></pre> <p>Causes a failure as one of the tests uses the StringIO class, and the import line goofs in Python 3 (it's currently <code>from StringIO import StringIO</code>, where in Python3 it should be <code>from io import StringIO</code></p> <p>I thought though that once you add the use_2to3 keyword all tests (including unittests) were processed by 2to3 before being tested.</p> <p>What am I missing? In case it helps, the bulk of my setup.py looks like:</p> <pre><code>from setuptools import setup setup( name='myproject', version='1.0', description='My Cool project', classifiers = [ 'Programming Language :: Python', 'Programming Language :: Python :: 3', ], py_modules=['mymodule'], test_suite='test_mymodule', zip_safe=False, use_2to3 = True, ) </code></pre> <p>Edit: the reason I feel as though 2to3 isn't getting run on a <code>python setup.py test</code> is that it blows up &amp; the bottom of the stacktrace reads:</p> <pre><code>File "/home/aparkin/temp/mymodule/test_mymodule.py", line 18, in &lt;module&gt; from StringIO import StringIO </code></pre> <p>But if I ran 2to3 on test_mymodule.py, then that import line should've been reworked to:</p> <pre><code>from io import StringIO </code></pre> <p>And (at worst) the tests should just individually fail.</p>
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