I can't install pyusb through macports

[Jeremy Lavergne]

You have a file in the place where MacPorts wants to install your software. Run the command MacPorts says to run to move files out of the way for that package.

>/Applications/MacPorts/Python 2.7/Build Applet.app/Contents/Info.plist
>already exists and does not belong to a registered port.  Unable to
>activate port python27. Use 'port -f activate python27' to force the
>activation.