def buglist(self, from_date=DEFAULT_DATETIME):
        """Get a summary of bugs in CSV format.

        :param from_date: retrieve bugs that where updated from that date
        """
        if not self.version:
            self.version = self.__fetch_version()

        if self.version in self.OLD_STYLE_VERSIONS:
            order = 'Last+Changed'
        else:
            order = 'changeddate'

        date = from_date.strftime("%Y-%m-%d %H:%M:%S")

        params = {
            self.PCHFIELD_FROM: date,
            self.PCTYPE: self.CTYPE_CSV,
            self.PLIMIT: self.max_bugs_csv,
            self.PORDER: order
        }

        response = self.call(self.CGI_BUGLIST, params)

        return response
Get a summary of bugs in CSV format.

        :param from_date: retrieve bugs that where updated from that date