'Copy data files into build directory'

def build_package_data(self):

    for (package, src_dir, build_dir, filenames) in self.data_files:
        for filename in filenames:
            target = os.path.join(build_dir, filename)
            self.mkpath(os.path.dirname(target))
            srcfile = os.path.join(src_dir, filename)
            (outf, copied) = self.copy_file(srcfile, target)
            srcfile = os.path.abspath(srcfile)
            if (copied and (srcfile in self.distribution.convert_2to3_doctests)):
                self.__doctests_2to3.append(outf)
