Not installing on Ubuntu 12.04

[ghost]

$ sudo dpkg -L libsamplerate0
/.
/usr
/usr/share
/usr/share/doc
/usr/share/doc/libsamplerate0
/usr/share/doc/libsamplerate0/copyright
/usr/share/doc/libsamplerate0/changelog.Debian.gz
/usr/lib
/usr/lib/x86_64-linux-gnu
/usr/lib/x86_64-linux-gnu/libsamplerate.so.0.1.8
/usr/lib/x86_64-linux-gnu/libsamplerate.so.0

$ sudo dpkg -L libsamplerate0-dev
/.
/usr
/usr/share
/usr/share/doc-base
/usr/share/doc-base/libsamplerate
/usr/share/doc
/usr/share/doc/libsamplerate0-dev
/usr/share/doc/libsamplerate0-dev/examples
/usr/share/doc/libsamplerate0-dev/examples/timewarp-file.c.gz
/usr/share/doc/libsamplerate0-dev/examples/audio_out.h
/usr/share/doc/libsamplerate0-dev/examples/audio_out.c.gz
/usr/share/doc/libsamplerate0-dev/examples/varispeed-play.c.gz
/usr/share/doc/libsamplerate0-dev/examples/sndfile-resample.c.gz
/usr/share/doc/libsamplerate0-dev/NEWS.gz
/usr/share/doc/libsamplerate0-dev/copyright
/usr/share/doc/libsamplerate0-dev/html
/usr/share/doc/libsamplerate0-dev/html/lists.html
/usr/share/doc/libsamplerate0-dev/html/api.html
/usr/share/doc/libsamplerate0-dev/html/history.html
/usr/share/doc/libsamplerate0-dev/html/api_misc.html
/usr/share/doc/libsamplerate0-dev/html/api_full.html
/usr/share/doc/libsamplerate0-dev/html/api_simple.html
/usr/share/doc/libsamplerate0-dev/html/win32.html
/usr/share/doc/libsamplerate0-dev/html/quality.html
/usr/share/doc/libsamplerate0-dev/html/download.html
/usr/share/doc/libsamplerate0-dev/html/SRC.png
/usr/share/doc/libsamplerate0-dev/html/faq.html
/usr/share/doc/libsamplerate0-dev/html/license.html
/usr/share/doc/libsamplerate0-dev/html/index.html
/usr/share/doc/libsamplerate0-dev/html/api_callback.html
/usr/share/doc/libsamplerate0-dev/html/SRC.css
/usr/share/doc/libsamplerate0-dev/README
/usr/include
/usr/include/samplerate.h
/usr/lib
/usr/lib/x86_64-linux-gnu
/usr/lib/x86_64-linux-gnu/pkgconfig
/usr/lib/x86_64-linux-gnu/pkgconfig/samplerate.pc
/usr/lib/x86_64-linux-gnu/libsamplerate.a
/usr/lib/x86_64-linux-gnu/libsamplerate.la
/usr/share/doc/libsamplerate0-dev/changelog.Debian.gz
/usr/lib/x86_64-linux-gnu/libsamplerate.so

$ cat site.cfg.example 
[samplerate]
library_dirs=/usr/lib/x86_64-linux-gnu
include_dirs=/usr/include

$ sudo python setup.py build
SamplerateInfo:
  FOUND:
    libraries = ['samplerate']
    library_dirs = ['/usr/lib/x86_64-linux-gnu']
    include_dirs = ['/usr/include']

running build
running config_cc
unifing config_cc, config, build_clib, build_ext, build commands --compiler options
running config_fc
unifing config_fc, config, build_clib, build_ext, build commands --fcompiler options
running build_src
build_src
building extension "scikits.samplerate._samplerate" sources
building data_files sources
build_src: building npy-pkg config files
running build_py
copying scikits/samplerate/version.py -> build/lib.linux-x86_64-2.7/scikits/samplerate
copying scikits/samplerate/info.py -> build/lib.linux-x86_64-2.7/scikits/samplerate
running build_ext
customize UnixCCompiler
customize UnixCCompiler using build_ext

$ sudo python setup.py install
SamplerateInfo:
  FOUND:
    libraries = ['samplerate']
    library_dirs = ['/usr/lib/x86_64-linux-gnu']
    include_dirs = ['/usr/include']

running install
running bdist_egg
running egg_info
running build_src
build_src
building extension "scikits.samplerate._samplerate" sources
building data_files sources
build_src: building npy-pkg config files
writing requirements to scikits.samplerate.egg-info/requires.txt
writing scikits.samplerate.egg-info/PKG-INFO
writing namespace_packages to scikits.samplerate.egg-info/namespace_packages.txt
writing top-level names to scikits.samplerate.egg-info/top_level.txt
writing dependency_links to scikits.samplerate.egg-info/dependency_links.txt
reading manifest file 'scikits.samplerate.egg-info/SOURCES.txt'
reading manifest template 'MANIFEST.in'
warning: no files found matching '*' under directory 'docs/pdf'
warning: no files found matching '*' under directory 'docs/html'
writing manifest file 'scikits.samplerate.egg-info/SOURCES.txt'
installing library code to build/bdist.linux-x86_64/egg
running install_lib
running build_py
copying scikits/samplerate/version.py -> build/lib.linux-x86_64-2.7/scikits/samplerate
copying scikits/samplerate/info.py -> build/lib.linux-x86_64-2.7/scikits/samplerate
running build_ext
customize UnixCCompiler
customize UnixCCompiler using build_ext
creating build/bdist.linux-x86_64/egg
creating build/bdist.linux-x86_64/egg/scikits
copying build/lib.linux-x86_64-2.7/scikits/__init__.py -> build/bdist.linux-x86_64/egg/scikits
creating build/bdist.linux-x86_64/egg/scikits/samplerate
copying build/lib.linux-x86_64-2.7/scikits/samplerate/version.py -> build/bdist.linux-x86_64/egg/scikits/samplerate
copying build/lib.linux-x86_64-2.7/scikits/samplerate/__init__.py -> build/bdist.linux-x86_64/egg/scikits/samplerate
copying build/lib.linux-x86_64-2.7/scikits/samplerate/setup.py -> build/bdist.linux-x86_64/egg/scikits/samplerate
copying build/lib.linux-x86_64-2.7/scikits/samplerate/info.py -> build/bdist.linux-x86_64/egg/scikits/samplerate
copying build/lib.linux-x86_64-2.7/scikits/samplerate/_samplerate.so -> build/bdist.linux-x86_64/egg/scikits/samplerate
copying build/lib.linux-x86_64-2.7/scikits/samplerate/setuphelp.py -> build/bdist.linux-x86_64/egg/scikits/samplerate
byte-compiling build/bdist.linux-x86_64/egg/scikits/__init__.py to __init__.pyc
byte-compiling build/bdist.linux-x86_64/egg/scikits/samplerate/version.py to version.pyc
byte-compiling build/bdist.linux-x86_64/egg/scikits/samplerate/__init__.py to __init__.pyc
byte-compiling build/bdist.linux-x86_64/egg/scikits/samplerate/setup.py to setup.pyc
byte-compiling build/bdist.linux-x86_64/egg/scikits/samplerate/info.py to info.pyc
byte-compiling build/bdist.linux-x86_64/egg/scikits/samplerate/setuphelp.py to setuphelp.pyc
creating stub loader for scikits/samplerate/_samplerate.so
byte-compiling build/bdist.linux-x86_64/egg/scikits/samplerate/_samplerate.py to _samplerate.pyc
installing package data to build/bdist.linux-x86_64/egg
running install_data
creating build/bdist.linux-x86_64/egg/scikits/samplerate/tests
copying scikits/samplerate/tests/test_regression.py -> build/bdist.linux-x86_64/egg/scikits/samplerate/tests/
running install_clib
customize UnixCCompiler
creating build/bdist.linux-x86_64/egg/EGG-INFO
copying scikits.samplerate.egg-info/PKG-INFO -> build/bdist.linux-x86_64/egg/EGG-INFO
copying scikits.samplerate.egg-info/SOURCES.txt -> build/bdist.linux-x86_64/egg/EGG-INFO
copying scikits.samplerate.egg-info/dependency_links.txt -> build/bdist.linux-x86_64/egg/EGG-INFO
copying scikits.samplerate.egg-info/namespace_packages.txt -> build/bdist.linux-x86_64/egg/EGG-INFO
copying scikits.samplerate.egg-info/not-zip-safe -> build/bdist.linux-x86_64/egg/EGG-INFO
copying scikits.samplerate.egg-info/requires.txt -> build/bdist.linux-x86_64/egg/EGG-INFO
copying scikits.samplerate.egg-info/top_level.txt -> build/bdist.linux-x86_64/egg/EGG-INFO
writing build/bdist.linux-x86_64/egg/EGG-INFO/native_libs.txt
creating 'dist/scikits.samplerate-0.4.0.dev-py2.7-linux-x86_64.egg' and adding 'build/bdist.linux-x86_64/egg' to it
removing 'build/bdist.linux-x86_64/egg' (and everything under it)
Processing scikits.samplerate-0.4.0.dev-py2.7-linux-x86_64.egg
removing '/usr/local/lib/python2.7/dist-packages/scikits.samplerate-0.4.0.dev-py2.7-linux-x86_64.egg' (and everything under it)
creating /usr/local/lib/python2.7/dist-packages/scikits.samplerate-0.4.0.dev-py2.7-linux-x86_64.egg
Extracting scikits.samplerate-0.4.0.dev-py2.7-linux-x86_64.egg to /usr/local/lib/python2.7/dist-packages
scikits.samplerate 0.4.0.dev is already the active version in easy-install.pth

Installed /usr/local/lib/python2.7/dist-packages/scikits.samplerate-0.4.0.dev-py2.7-linux-x86_64.egg
Processing dependencies for scikits.samplerate==0.4.0.dev
Searching for numpy==1.8.0
Best match: numpy 1.8.0
Adding numpy 1.8.0 to easy-install.pth file

Using /usr/local/lib/python2.7/dist-packages
Finished processing dependencies for scikits.samplerate==0.4.0.dev

>>> from scikits.samplerate import resample
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "scikits/samplerate/__init__.py", line 6, in <module>
    from _samplerate import resample, available_convertors, src_version_str, \
ImportError: No module named _samplerate