excel.py

from io import BytesIO
import numpy as np
from pandas import DataFrame, date_range, ExcelWriter, read_excel
import pandas.util.testing as tm


class Excel:

    params = ["openpyxl", "xlsxwriter", "xlwt"]
    param_names = ["engine"]

    def setup(self, engine):
        N = 2000
        C = 5
        self.df = DataFrame(
            np.random.randn(N, C),
            columns=["float{}".format(i) for i in range(C)],
            index=date_range("20000101", periods=N, freq="H"),
        )
        self.df["object"] = tm.makeStringIndex(N)
        self.bio_read = BytesIO()
        self.writer_read = ExcelWriter(self.bio_read, engine=engine)
        self.df.to_excel(self.writer_read, sheet_name="Sheet1")
        self.writer_read.save()
        self.bio_read.seek(0)

    def time_read_excel(self, engine):
        read_excel(self.bio_read)

    def time_write_excel(self, engine):
        bio_write = BytesIO()
        bio_write.seek(0)
        writer_write = ExcelWriter(bio_write, engine=engine)
        self.df.to_excel(writer_write, sheet_name="Sheet1")
        writer_write.save()


from ..pandas_vb_common import setup  # noqa: F401