PyCharm/RubyMine/etc. aren't officially supported, you might be able to get them to work by manually doing the same things the intellij port does. But pure IntelliJ IDEA works perfectly.
I tried the community edition a while back. Can't remember much by now but it definately was'nt the same experience as the commercial one. (Actually I'm using the phpstorm edition).
PyCharm/RubyMine/etc. aren't officially supported, you might be able to get them to work by manually doing the same things the intellij port does. But pure IntelliJ IDEA works perfectly.