title: Iterating through constructor's arguments
body: <p>I often find myself writing class constructors like this:</p>
  
  <pre><code>class foo:
      def __init__(self, arg1, arg2, arg3):
          self.arg1 = arg1
          self.arg2 = arg2
          self.arg3 = arg3
  </code></pre>
  
  <p>This can obviously become a pain if the number of arguments (and class attributes) gets high. I'm looking for the most pythonic way to loop through the constructor's arguments list and assign attributes accordingly. I'm working with Python 2.7, so ideally I'm looking for help with that version. </p>