title: How to set constant figsize in matplotlib
body: <p>I am doing some experimentations with plotting and I like big plots i.e plots on a big picture. So I have to manually do</p>
  <pre><code>plt.figure(figsize=(15,8))
  myplotcode
  </code></pre>
  <p>every time.
  I want to know is there anyway that I set this <code>figsize</code> as constant in starting and do not use it manaully everytime.</p>
  <p>Thanks</p>