as the first statement in the object's
definition.  For example, the following function defines a docstring:
</p>

<div class="screen"><pre>
<code class="keyword">def</code> <code class="function">x_intercept</code>(m, b):
    <code class="string">"""
    Return the x intercept of the line y=m*x+b.  The x intercept of a
    line is the point at which it crosses the x axis (y=0).
    """</code>
    <code class="keyword">return</code> -b/m
</pre></div>

<p> Docstrings can be accessed from the interpreter and 