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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 _dispatch_validation_error(self, msg, writing=False):
 """Issue either a warning or an error depending on circumstance. If writing to file, then error out, as we do not wish to create bad JP2 files. If reading, then we should be more lenient and just warn. """

        if writing:
            raise IOError(msg)
        else:
            warnings.warn(msg)