internals.py 文件源码

def __init__(self, ofile, maxresultrows=None):
        self._maxresultrows = 50000 if maxresultrows is None else maxresultrows

        self._ofile = ofile
        self._fieldnames = None
        self._buffer = StringIO()

        self._writer = csv.writer(self._buffer, dialect=CsvDialect)
        self._writerow = self._writer.writerow
        self._finished = False
        self._flushed = False

        self._inspector = OrderedDict()
        self._chunk_count = 0
        self._record_count = 0
        self._total_record_count = 0L