read and write operations python csv

import csv


def read_csvList(path="./datasets/test.csv")->list:
    """return data format  [[],[]]"""
    with open(file=path,mode="r")as f:
        df=csv.reader(f,dialect='excel',delimiter=',', quotechar='|')
        sets=[i for i in df ]
        print(sets[:2])
        return sets
def read_csvDict(path=None)->dict:
      with open(file="./datasets/breast_a.csv",mode="r") as f:
          df=csv.DictReader(f)
          data_set= dict([(i['id'],[i["x0"],i["x1"]]) for i in df])
          return data_set
def  write_csv(path='./datasets/test.csv',data=None):
     """ data format=[[],[]] or [(),()]"""
     with open (file=path,mode='w',newline='')as f:
         wt=csv.writer(f)
         wt.writerows(data)

if __name__ == '__main__':
    write_csv(data=[["张三",99],["李四",88]])