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def _get_line_list(self, version_ids):
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return [t.splitlines(True) for t in self.get_texts(version_ids)]
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"""Return a list of all ancestors of given version(s). This
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will not include the null revision.
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Must raise RevisionNotPresent if any of the given versions are
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not present in file history."""
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if isinstance(version_ids, basestring):