PyDev 가 이클립스에서 보이지 않는 경우.

http://pydev.sourceforge.net/download.html

PyDev does not appear after install!

Well, the main issue at this time is that PyDev requires Java 7 in order to run. So, if you don't want to support PyDev by going the LiClipse route (which is mostly a PyDev standalone plus some goodies), you may have to go through some loops to make sure that you're actually using Java 7 to run Eclipse/PyDev (as explained below).

JDK 버전이 1.7 이상이어야 한단다.....

완전 삽질 했네. ...