msgpack.py

import warnings

import numpy as np

from pandas import DataFrame, date_range, read_msgpack
import pandas.util.testing as tm

from ..pandas_vb_common import BaseIO


class MSGPack(BaseIO):
    def setup(self):
        self.fname = "__test__.msg"
        N = 100000
        C = 5
        self.df = DataFrame(
            np.random.randn(N, C),
            columns=[f"float{i}" for i in range(C)],
            index=date_range("20000101", periods=N, freq="H"),
        )
        self.df["object"] = tm.makeStringIndex(N)
        with warnings.catch_warnings(record=True):
            self.df.to_msgpack(self.fname)

    def time_read_msgpack(self):
        read_msgpack(self.fname)

    def time_write_msgpack(self):
        self.df.to_msgpack(self.fname)


from ..pandas_vb_common import setup  # noqa: F401 isort:skip