def install_package_to_venv(self):
        '''
        Installs package given as first argument to virtualenv without
        dependencies
        '''
        try:
            self.env.install(self.name, force=True, options=["--no-deps"])
        except (ve.PackageInstallationException,
                ve.VirtualenvReadonlyException):
            raise VirtualenvFailException(
                'Failed to install package to virtualenv')
        self.dirs_after_install.fill(self.temp_dir + '/venv/')
Installs package given as first argument to virtualenv without
        dependencies