title: Running Python functions in CLISP
body: <p>Are there any CLISP sources available? I could only find references to Stack.</p>
  
  <p>I'm trying to run a python definition in CLISP - any suggestions on how I go about doing this? I'm fairly familiar in writing definitions in CLISP, but not in python... for starters I'm looking to rewrite this from python:</p>
  
  <pre><code>def f(x):
  if x &lt;= 1/2:
      return 2 * x
  if x &gt; 1/2:
      return 2*x - 1
  </code></pre>
  
  <p>Just to see how CLISP deals with computing fractions as a comparison I was going to run this, which I took from an online computational algebra course:</p>
  
  <pre><code>x = 1/10
  for i in range(80):
      print(x)
      x = f(x)
  </code></pre>
  
  <p>Grateful for any suggestions...</p>
  
  <p>Cheers.</p>