title: Python: Package directory does not exist
body: <p>I'm trying to install a python package in windows 10 using the following setup.py file.</p>
  
  <pre><code>"""Setup file for uhd module"""
  
  from setuptools import setup
  
  setup(name='uhd',
        version='3.14.0',
        description='Universal Software Radio Peripheral (USRP) Hardware Driver Python API',
        classifiers=[
            'Development Status :: 4 - Beta',
            'License :: OSI Approved :: GNU General Public License v3 (GPLv3)',
            'Programming Language :: C++',
            'Programming Language :: Python',
            'Topic :: System :: Hardware :: Hardware Drivers',
        ],
        keywords='SDR UHD USRP',
        author='Ettus Research',
        author_email='packages@ettus.com',
        url='https://www.ettus.com/',
        license='GPLv3',
        package_dir={'': 'C:/Users/bcollins/UHD_PY/uhd/host/build/python'}, 
        package_data={'uhd': ['*.so']},
        zip_safe=False,
        packages=['uhd'],
        install_requires=['numpy'])
  </code></pre>
  
  <p>I execute the script using the command</p>
  
  <pre><code>python setup.py install
  </code></pre>
  
  <p>I do this from the directory that contains the setup.py file.</p>
  
  <p>This returns the following error</p>
  
  <pre><code>error: package directory 'C:Users\bcollins\UHD_PY\uhd\host\build\python\uhd' does not exist
  </code></pre>
  
  <p>There is a folder called "uhd" at that location though. The folder contains the <code>__init__.py</code> file</p>
  
  <p>If the script isn't looking for this folder, what is it looking for?</p>
  
  <p>I'm not exactly experienced in this area but my best guess is that its looking for a .so file within the "uhd" folder at that location, but I'm not sure.</p>
  
  <p>I am using python 2.7.</p>