I looking for a GUI Builder for python
i know it exist, can see it in this image background
It is Glade 3, a GUI Designer for GTK+. It generates an XML file representing your GUI. You can load this GUI later using PyGTK.
Specifically, the screenshot is running a Mac OS X port of Glade 3
That's glade, it actually produces XML, which can be used with the PyGTK library in python
The GUI designer isn't "for" python, it's for gtk+ and the associated language bindings known as pygtk.
there are two gui editors available:
I use PyQt (PyQt Homepage); it is built on the QT Toolkit (http://www.qtsoftware.com/).
If you are deploying to Windows, it works well with the py2exe module (py2exe).
It's fairly straightforward to use, especially if you already have experience with the QT libraries.
The one in the screenshot is Glade.
However, there are quite a few GUI-Builders for Python, as seen on http://wiki.python.org/moin/GuiProgramming
Gazpacho is almost a clone of Glade, but written in pure PyGTK. We (the PIDA team) are currently refurbishing it.