The following forum message was posted by ovencovsky at http://sourceforge.net/projects/pydev/forums/forum/293649/topic/4924314:
There's a problem with autocompletion for PyQt4 in PyDev - when using Java 7.
When I had Java 7 (u2) installed, PyQt autocompletion for PyDev didn't work.
After typing QtGui and then dot, Eclipse got frozen for a minute and then I
got the error message:
Error connecting to python process...
I couldn't find what's the problem, I found only advices about firewall and
localhost redirection, but it didn't wok for me.
But then I uninstalled Java 7 and installed Java 6u30 and now it works well
So I think there's some problem related to Java 7.
Eclipse Indigo, PyDev 2.3.0, x64 Environment: Windows 7 Ultimate( x64), Python
3.2.2 (x64), PyQt 4.9 (x64)