Why am I receiving a low level socket error when using the Fabric python library?
<p>When I run the command:</p>

<pre><code>fab -H localhost host_type
</code></pre>

<p>I receive the following error:</p>

<pre><code>[localhost] Executing task 'host_type'
[localhost] run: uname -s

Fatal error: Low level socket error connecting to host localhost: Connection refused

Aborting.
</code></pre>

<p>Any thoughts as to why? Thanks.</p>

<h3>Fabfile.py</h3>

<pre><code>from fabric.api import run
def host_type():
    run('uname -s')
</code></pre>

<h3>Configuration</h3>

<ul>
<li>Fabric 1.0a0 (installed from the <a href="http://github.com/cumulusware/fabric/commit/b8e1b6ac3f43787375bb77c1a64d7f9c000e7511">most recent Github commit---b8e1b6a</a>)</li>
<li>Paramiko 1.7.4</li>
<li>PyCrypto 2.0.1</li>
<li>Virtualenv ver 1.3.3</li>
<li>Python 2.6.2+ (release26-maint:74924, Sep 18 2009, 16:03:18)</li>
<li>Mac OS X 10.6.1</li>
</ul>
