title: How to fix syntax error at semicolon before equal
body: <p>I am running a code taken from the website </p>
  
  <p><a href="http://foreverlearning.altervista.org/genetic-programming-symbolic-regression-pt-2/" rel="nofollow noreferrer">http://foreverlearning.altervista.org/genetic-programming-symbolic-regression-pt-2/</a></p>
  
  <p>at the bottom of the page.  This is a part when testing treeOperations.py.</p>
  
  <p>To test this code, I run the mainprova.py code that is provided at the bottom of the page after treeOperations.py listing.  I am getting the following syntax error:</p>
  
  <pre><code> python mainprova3.py
   Traceback (most recent call last):
   File "mainprova3.py", line 2, in &lt;module&gt;
   import treeOperations as trop
   File "/home/adam/DocumentsNew2/MathCode/SymbolicRegression/WebpageCode   /treeOperations.py", line 23
  if choice &amp;lt;= leftNodes:
               ^
  SyntaxError: invalid syntax
  </code></pre>
  
  <p>I am new to python.  I do not understand the semicolon before equal sign.  What it means? How do I fix it?</p>