title: setup.py console_scripts entry point does not resolve import
body: <p>I have following setup.py:</p>
  
  <pre><code>from setuptools import setup
  from distutils.core import setup
  setup(
      name="foobar",
      version="0.1.0",
      author="Batman",
      author_email="batman@gmail.com",
      packages = ["foobar"],
      include_package_data=True,
      install_requires=[
          "asyncio",
      ],
      entry_points={
          'console_scripts': [
              'foobar = foobar.__main__:main'
           ]
      },
  )
  </code></pre>
  
  <p>Now, the <strong>main</strong>.py file gets installed and callable by foobar out of console after installation, which is what I wanted. Problem is, <strong>main</strong>.py has import at line 3 and that does not work. </p>
  
  <p>So my folder structure is as follows</p>
  
  <pre><code>dummy/setup.py
  dummy/requirements.txt
  dummy/foobar/__init__.py
  dummy/foobar/__main__.py
  dummy/foobar/wont_be_imported_one.py
  </code></pre>
  
  <p>I run <code>python3 setup.py bdist</code> being in dummy directory.
  Upon running foobar after installation, I get error </p>
  
  <pre><code>File "/usr/local/bin/foobar", line 9, in &lt;module&gt;
      load_entry_point('foobar==0.1.0', 'console_scripts', 'foobar')()
  
  [...]
  
  ImportError: No module named 'wont_be_imported_one'.
  </code></pre>
  
  <p>UPDATE.
  <code>__init__.py</code> has content of</p>
  
  <pre><code>from wont_be_imported_one import wont_be_imported_one
  </code></pre>
  
  <p><code>wont_be_imported_one.py</code> has from <code>wont_be_imported_one</code> function which I actually need to import.</p>