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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 list_distinfo_files(self):
 """ Iterates over the ``RECORD`` entries and returns paths for each line if the path is pointing to a file located in the ``.dist-info`` directory or one of its subdirectories. :returns: iterator of paths """

        base = os.path.dirname(self.path)
        for path, checksum, size in self._get_records():
            # XXX add separator or use real relpath algo
            if not os.path.isabs(path):
                path = os.path.join(base, path)
            if path.startswith(self.path):
                yield path