xlsxw.py 文件源码

def open(self, file_name, **keywords):
        """
        Open a file for writing

        Please note that this writer configure xlsxwriter's BookWriter to use
        constant_memory by default.

        :param keywords: **default_date_format** control the date time format.
                         **constant_memory** if true, reduces the memory
                         footprint when writing large files. Other parameters
                         can be found in `xlsxwriter's documentation
                         <http://xlsxwriter.readthedocs.io/workbook.html>`_
        """
        keywords.setdefault('default_date_format', 'dd/mm/yy')
        keywords.setdefault('constant_memory', True)
        BookWriter.open(self, file_name, **keywords)

        self._native_book = xlsxwriter.Workbook(
            file_name, keywords
         )