It seems that this is solved on PyDev and the problem is you can’t upgrade PyDev on Aptana 3.6.0. Version 3.6.1 takes out the integration with PyDev and lets you upgrade PyDev.
So I installed Aptana 3.6.1 through Beta repository and then installed the latest PyDev.
Aptana Beta link to add to “Available Software Sites” on Aptana:
http://preview.appcelerator.com/aptana/studio3/standalone/update/beta/
Upgrade to Aptana 3.6.1. This will uninstall PyDev.
PyDev link to add to “Available Software Sites” on Aptana:
http://pydev.org/updates
Install PyDev.
And then, “Port not bound” will be solved.