title: PySerial Python error: AttributeError: 'Serial' object has no attribute '_port_handle'
body: <p>I try to talk serial with Python with HTML and JavaScript.
  Background is that i need a interface on Android to control serial devices connected to the USB port of a Tablet or Phone. I did web design and building the interface would be easy for me with HTML, CSS, JS.
  Maybe there is a better way (?) but the only example i found is this:
  <a href="http://fabacademy.org/archives/2015/doc/WebSocketConsole.html" rel="nofollow">http://fabacademy.org/archives/2015/doc/WebSocketConsole.html</a></p>
  
  <p>So i did install:</p>
  
  <pre><code>Visual C++ 2008 SP1 Redistributable Package Eng (x86)
  Visual C++ 2008 SP1 Redistributable Package Eng (x64)
  Visual C++ Compiler for Python 2.7 v9.0.0.30729 Eng
  Python x86 v2.7.11
  </code></pre>
  
  <p>And in CMD:</p>
  
  <pre><code>python -m pip install --upgrade pip
  python -m pip install --upgrade setuptools
  python -m pip install --upgrade virtualenv
  python -m pip install --upgrade wheel
  python -m pip install --upgrade pyserial
  python -m pip install --upgrade tornado
  python -m pip install --upgrade multiprocessing
  </code></pre>
  
  <p>The problem with the example from that side i get:</p>
  
  <pre><code>AttributeError: 'Serial' object has no attribute '_port_handle'
  </code></pre>
  
  <p>Since i never did much with Python - I'm lost.</p>