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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def _delete_sbo_tar_gz(self):
 """Delete slackbuild tar.gz file after untar """

        if not self.auto and os.path.isfile(self.meta.build_path + self.script):
            os.remove(self.meta.build_path + self.script)