pandas-streaming 0.5.1

from pandas_streaming.df import StreamingDataFrame
sdf = StreamingDataFrame.read_csv("filename", sep="\t", encoding="utf-8")

for df in sdf:
    # process this chunk of data
    # df is a dataframe
    print(df)

该模块还可以流式传输现有的dataframe。

import pandas
df = pandas.DataFrame([dict(cf=0, cint=0, cstr="0"),
                       dict(cf=1, cint=1, cstr="1"),
                       dict(cf=3, cint=3, cstr="3")])

from pandas_streaming.df import StreamingDataFrame
sdf = StreamingDataFrame.read_df(df)

for df in sdf:
    # process this chunk of data
    # df is a dataframe
    print(df)

它包含其他辅助工具，可以将数据集拆分为具有一些奇怪约束的培训数据和测试数据。