def clean_semver(cls, version_spec):
        return re.sub(r"([<>=~])\s+?v?", "\\1", version_spec, re.IGNORECASE)
def callproc(self, procname, params=None):
        result = self._no_monkey.callproc(self, procname, params)
        if transaction_states[self.db.alias]:
            transaction_states[self.db.alias].mark_dirty()
        return result