title: Sphinx doesn't find Python packages when using autodoc
body: <p>I'm trying to create documentation for test Python project before doing it for the real project. 
  My system : Win7 64 bit, python 2.7.5 64 bit.</p>
  
  <p>My project name is <strong>testDoc</strong>. It includes python pakage, named <strong>t</strong>, which includes 2 modules <strong>t1</strong> and <strong>t2</strong> and <code>__init__.py</code>.</p>
  
  <p><code>__init__.py</code> contains:</p>
  
  <pre><code>import t1
  import t2
  </code></pre>
  
  <p>t1.py contains:</p>
  
  <pre><code>'''
  Created on 27  2013
  
  @author: 
  '''
  
  class MyClass(object):
      '''
      Hi
      '''
  
  
      def __init__(self,selfparams):
          '''
          Constructor
          '''
          pass
  </code></pre>
  
  <p>To create docs I run in the command line in <strong>testDoc</strong>:</p>
  
  <pre><code>sphinx-apidoc -A "me" -F -o docs .
  </code></pre>
  
  <p>Sphinx creates many files and it's ok according to Sphinx docs. 
  Then, <strong>conf.py</strong> is modified</p>
  
  <pre><code>sys.path.insert(0, os.path.abspath(absolute path to testDoc))
  </code></pre>
  
  <p>I enter <strong>docs</strong> folder and type </p>
  
  <pre><code>make html
  </code></pre>
  
  <p>and get the following erroneous output:</p>
  
  <pre><code>Making output directory...
  Running Sphinx v1.1.3
  loading pickled environment... not yet created
  building [html]: targets for 2 source files that are out of date
  updating environment: 2 added, 0 changed, 0 removed
  reading sources... [ 50%] index
  reading sources... [100%] t
  Traceback (most recent call last):
    File "C:\Python27\lib\site-packages\sphinx\ext\autodoc.py", line 321, in impor
  t_object
      __import__(self.modname)
  ImportError: No module named t.__init__
  Traceback (most recent call last):
    File "C:\Python27\lib\site-packages\sphinx\ext\autodoc.py", line 321, in impor
  t_object
      __import__(self.modname)
  ImportError: No module named t.t1
  Traceback (most recent call last):
    File "C:\Python27\lib\site-packages\sphinx\ext\autodoc.py", line 321, in impor
  t_object
      __import__(self.modname)
  ImportError: No module named t.t2
  
  ...testDoc\t\docs\t.rst:7: WARNING: a
  autodoc can't import/find module 't.__init__', it reported error: "No module name
  d t.__init__", please check your spelling and sys.path
  ...testDoc\t\docs\t.rst:15: WARNING:
  autodoc can't import/find module 't.t1', it reported error: "No module named t.t
  1", please check your spelling and sys.path
  t...testDoc\t\docs\t.rst:23: WARNING:
  autodoc can't import/find module 't.t2', it reported error: "No module named t.t
  2", please check your spelling and sys.path
  looking for now-outdated files... none found
  pickling environment... done
  checking consistency... done
  preparing documents... done
  writing output... [ 50%] index
  writing output... [100%] t
  
  writing additional files... (0 module code pages) genindex search
  copying static files... done
  dumping search index... done
  dumping object inventory... done
  build succeeded, 3 warnings.
  
  Build finished. The HTML pages are in _build/html.
  </code></pre>
  
  <p>What's wrong?
  Thanks.</p>