title: opencv 3.0.0 alpha with Python 3 failed to import cv2
body: <p>I'm using Anaconda 2.1.0 with python 3.4.1 and just built opencv 3.0.0-alpha on Mac OSX Yosemite with following command:</p>
  
  <pre><code>cmake -D CMAKE_BUILD_TYPE=RELEASE 
  -D BUILD_PERF_TESTS=OFF 
  -D BUILD_opencv_python3=ON 
  -D CMAKE_OSX_ARCHITECTURES=x86_64 
  -D CMAKE_INSTALL_PREFIX=/usr/local 
  -D PYTHON3_EXECUTABLE=${ANACONDA}/bin/python3 
  -D PYTHON3_LIBRARY=${ANACONDA}/lib/libpython3.4m.dylib 
  -D PYTHON3_INCLUDE_DIR=${ANACONDA}/include/python3.4m 
  -D PYTHON3_NUMPY_INCLUDE_DIRS=${ANACONDA}/lib/python3.4/site-packages/numpy/core/include 
  -D PYTHON3_PACKAGES_PATH=${ANACONDA}/lib/python3.4/site-packages ..
  </code></pre>
  
  <p>The building seems successful. I got <code>libopencv_*.dylib</code> files after building opencv.
  but I can't import cv2 module:</p>
  
  <pre><code>Python 3.4.1 |Anaconda 2.1.0 (x86_64)| (default, Sep 10 2014, 17:24:09)
  [GCC 4.2.1 (Apple Inc. build 5577)] on darwin
  Type "help", "copyright", "credits" or "license" for more information.
  &gt;&gt;&gt; import cv2
  Traceback (most recent call last):
    File "&lt;stdin&gt;", line 1, in &lt;module&gt;
  ImportError: dlopen(/Users/scari/anaconda3/lib/python3.4/site-packages/cv2.so, 2): Library not loaded: libpython3.4m.dylib
    Referenced from: /Users/scari/anaconda3/lib/python3.4/site-packages/cv2.so
    Reason: image not found
  &gt;&gt;&gt;
  </code></pre>
  
  <p>Here's sys.path output:</p>
  
  <pre><code>&gt;&gt;&gt; sys.path
  ['', '/Users/scari/anaconda3/lib/python34.zip', '/Users/scari/anaconda3/lib/python3.4', '/Users/scari/anaconda3/lib/python3.4/plat-darwin', '/Users/scari/anaconda3/lib/python3.4/lib-dynload', '/Users/scari/anaconda3/lib/python3.4/site-packages', '/Users/scari/anaconda3/lib/python3.4/site-packages/Sphinx-1.2.3-py3.4.egg', '/Users/scari/anaconda3/lib/python3.4/site-packages/runipy-0.1.1-py3.4.egg', '/Users/scari/anaconda3/lib/python3.4/site-packages/setuptools-5.8-py3.4.egg']
  </code></pre>
  
  <p>What should I check first?</p>