capybara/virtualenv/lib/python2.7/site-packages/pip/vcs/__init__.py
def unpack(self, location):
        """
        Clean up current location and download the url repository
        (and vcs infos) into location
        """
        if os.path.exists(location):
            rmtree(location)
        self.obtain(location)
def unpack(self, location):
        """
        Clean up current location and download the url repository
        (and vcs infos) into location
        """
        if os.path.exists(location):
            rmtree(location)
        self.obtain(location)
Clean up current location and download the url repository
        (and vcs infos) into location