make python os.chdir follow vim autochdir?

I use the autochdir option in VIM and I also utilize VIM's built-in Python interface. Is it possible to have the current directory for the built-in Python interpreter follow VIM's autochdir. For example, when I am editing a Python file, VIM's autochdir option puts me in the same directory as the edited file as far as VIM is concerned, but I still have to manually

 :py os.chdir(directory)

from the VIM command li开发者_如何学Gone in order to get the Python interpreter to recognize the same directory that VIM has.

Is this possible? I'm using VIM 7.2 on Windows.

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You could try putting in vimrc

autocmd Filetype python py os.chdir(directory)

which means that whenever a python file is read or written, it executes this command.