Invoke and control GDB from Python

I am running a Python GUI application. I want to invoke and control GDB from it, like load an executable file, set breakpoints etc. I see that GDB has a command line interface which can be used by sending strings to the GDB process, but I want to do it the Python way. Is there a gdb.py? I see that "archer" branch has something like "import gdb", but it doesn't work in Ubuntu's default installation of Python. Where do I get this module or is there any other method to control GDB from Python?