title: Python build doesn't work on Sublime Text
body: <p>Whenever I build (<kbd>Cmd+B</kbd>) on Sublime Text 3 it doesn't execute my code.</p>
  
  <p>I used <kbd>Shift+Command+B</kbd> to set the build system to Python. I also tried making my own build system by using the <code>which python3.6</code> command in terminal, which said <code>/Library/Frameworks/Python.framework/Versions/3.6/bin/python3.6</code></p>
  
  <p>I put in this in my custom build system</p>
  
  <pre class="lang-json prettyprint-override"><code>{
      "cmd": ["python", "-u", "$file"],
      "file_regex": "^[ ]*File \"(...*?)\", line ([0-9]*)",
      "selector": "source.python"
  }
  </code></pre>
  
  <p>However I still get the same error. Please help.</p>
  
  <p><a href="https://i.stack.imgur.com/ueUUT.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/ueUUT.png" alt="This is what I get when I try to build"></a></p>
  
  <p>I know this is a really stupid question, I'm sure I just have to change some settings to solve this, thanks for you time.</p>