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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 _set_attribute(self, attribute, name, value):
 """Device attribute setter"""

        try:
            if attribute is None:
                attribute = self._attribute_file_open( name )
            else:
                attribute.seek(0)

            if isinstance(value, str):
                value = value.encode()
            attribute.write(value)
            attribute.flush()
        except Exception as ex:
            self._raise_friendly_access_error(ex, name)
        return attribute