title: Why a calling function in python contains variable equal to value?
body: <p>I have started to learn python, and I would like to ask you about something which I considered a little magic in this language.</p>
  
  <p>I would like to note that before learning python I worked with PHP and there I haven't noticed that.</p>
  
  <p>What's going on - I have noticed that some call constructors or methods in Python are in this form. </p>
  
  <pre><code>object.call(variable1 = value1, variable2 = value2)
  </code></pre>
  
  <p>For example, in FLask:</p>
  
  <pre><code>app.run(debug=True, threaded=True)
  </code></pre>
  
  <p>Is any reason for this convention? Or is there some semantical reason outgoing from the language fundamentals? I haven't seen something like that in PHP as often as in Python and because I'm really surprised. I'm really curious if there is some magic or it's only convention to read code easier. </p>