title: Errors converting .ui to py files PyQt5
body: <p>I'm trying to convert my .ui files to .py files. I am using PyQt5 and Python 3.6.</p>
  <p>When trying the below commands they all fail:</p>
  <pre class="lang-none prettyprint-override"><code>C:\Python35\Lib\site-packages\PyQt5&gt;pyuic5 FirstApp.ui -o FirstApp.py
  '&quot;C:\Python35\python&quot;' is not recognized as an internal or external command,
  operable program or batch file.
  </code></pre>
  <pre class="lang-none prettyprint-override"><code>C:\Python35\Lib\site-packages\PyQt5&gt;pyuic5.bat -x FirstApp.ui -o FirstApp.py
  '&quot;C:\Python35\python&quot;' is not recognized as an internal or external command,
  operable program or batch file.
  </code></pre>
  <pre class="lang-none prettyprint-override"><code>C:\Python35\Lib\site-packages\PyQt5&gt;pyuic4 -x FirstApp.ui -o FirstApp.py
  'pyuic4' is not recognized as an internal or external command,
  operable program or batch file.
  </code></pre>
  <pre class="lang-none prettyprint-override"><code>C:\Python35\Lib\site-packages\PyQt5&gt;pyuic4 FirstApp.ui -o FirstApp.py
  'pyuic4' is not recognized as an internal or external command,
  operable program or batch file.
  </code></pre>
  <p>I made sure that the <code>FirstApp.ui</code> file is in the same location as the <code>pyuic.bat</code> file and also added the paths to my Environmental Variables in system settings. I even reinstalled PyQt5.</p>
  <p>I also tried to resolve the issue by editing my <code>pyuic5.bat</code> file located in <code>C:\Python35\Lib\Site-Packages\PyQt5</code> as follows:</p>
  <p>Original script:</p>
  <pre><code>@&quot;C:\Python35\python&quot; -m PyQt5.uic.pyuic %1 %2 %3 %4 %5 %6 %7 %8 %9
  </code></pre>
  <p>My edit: to point my bat file to where my Python directory is:</p>
  <pre><code>@&quot;C:\Program Files\Python36\python.exe&quot; -m PyQt5.uic.pyuic %1 %2 %3 %4 %5 %6 %7 %8 %9
  </code></pre>
  <p>Then when I try running the convert command again I get a new error:</p>
  <pre class="lang-none prettyprint-override"><code>C:\Program Files\Python36\python.exe: Error while finding module specification for 'PyQt5.uic.pyuic' (ModuleNotFoundError: No module named 'PyQt5')
  </code></pre>
  <p>I'm not what sure to do next to get around this very frustrating error. How can I solve this?</p>