':calls: `GET /repos/:owner/:repo/stats/punch_card <http://developer.github.com/v3/repos/statistics/#get-the-number-of-commits-per-hour-in-each-day>`_
:rtype: None or :class:`github.StatsPunchCard.StatsPunchCard`'

def get_stats_punch_card(self):

    (headers, data) = self._requester.requestJsonAndCheck('GET', (self.url + '/stats/punch_card'))
    if (data == {}):
        return None
    else:
        return github.StatsPunchCard.StatsPunchCard(self._requester, headers, data, completed=True)
