title: pyrtlsdr on windows doesnt import
body: <p>I'm trying to get <code>pyrtlsdr-0.2.9</code> to work on a windows 10 computer with <code>python 3.6</code>. First, I installed it with <code>pip</code> like the instructions says on the site. Then, for some reason when I try to import the module or run an example script I get the following error message: </p>
  
  <pre><code>Traceback (most recent call last):
    File "&lt;pyshell#0&gt;", line 1, in &lt;module&gt;
      import rtlsdr
    File "C:\...\Programs\Python\Python36-32\lib\site-packages\rtlsdr\__init__.py", line 56, in &lt;module&gt;
      from .librtlsdr import librtlsdr
    File "C:\...\Programs\Python\Python36-32\lib\site-packages\rtlsdr\librtlsdr.py", line 50, in &lt;module&gt;
      librtlsdr = load_librtlsdr()
    File "C:\...\Programs\Python\Python36-32\lib\site-packages\rtlsdr\librtlsdr.py", line 45, in load_librtlsdr
      raise ImportError('Error loading librtlsdr. Make sure librtlsdr '\
  ImportError: Error loading librtlsdr. Make sure librtlsdr (and all of its dependencies) are in your path
  </code></pre>
  
  <p>I've tried to lightly edit the module and to keep it in the same folder as my script in which case I get this error:</p>
  
  <pre><code>OSError: Error code -12 when opening SDR (device index = 0)
  </code></pre>
  
  <p>How can I get this module to work on windows? <code>librtlsdr</code> works with my dongle, but apparently not via <code>python</code>.</p>