示例代码

import csv

import pandas as pd
import numpy as np

csv_file = "data.csv"

df = pd.read_csv(csv_file)

df_no_duplicated = df.drop_duplicates(
    subset=["client_ip", " device"],
    keep="first"
)

df_no_duplicated.to_csv("data_m2_t1_s1.csv",
                        index=False,
                        escapechar=" ",
                        quoting=csv.QUOTE_NONE,
                        quotechar='',)