title: PyCharm doesn't detect interpreter
body: <p>I'm new to programming and just started a course on Python. I want to use PyCharm, so I downloaded and intalled it (v. 4.5, community edition). I had previously installed Python 3.5 64-bit from python.org (I'm using Windows 10).</p>
  
  <p>To start using PyCharm, I need a project interpreter, which I can select in the settings. As far as I'm concerned, the interpreter is "py.exe", but when I select it, I get this error message: "The selected file is not a valid home for Python SDK". I also tried to use every file whose name contained "python" or "py", and failed.</p>
  
  <p>On every website and video I see, they select a file called "python.exe", but they're using Python 3.4 or a previous version. I checked that PyCharm supports 3.5 ("Initial support for Python 3.5").</p>
  
  <p>Is there anything I'm doing wrong? What should I do to be able to use PyCharm?</p>
  
  <p>All replies are appreciated. Thanks in advance.</p>