install graph tool in Mac OS X 10.10

hi all,
i install graph tool in OS X 10.10 using command "sudo port install py-graph-tool" and i succeed
but when i use graph tool, i must use python under root mode; how can i excute the python code under normal account mode without root privilege?
also, when i use "from graph_tool.all improt *", i get "cannot import GTK+ module" error, but nevermind, it can still draw graph picture using other modules.
thanks

Zhao Jun

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sorry to disturb, i have solved the problem.
i just forget to close the terminal and restart

Zhao Jun

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