python 从csv读数据到mysql的实例

import csv
import sys,os
import MySQLdb

def read_csv(filename):
  with open(filename) as f:
    f_csv = csv.reader(f)
    headers = next(f_csv)
    #数据格式[1111,22222,1111,1111,.....]
    #for row in f_csv:
      # Process row
    #  field1=row[1]
    #  ...
    return headers

def conn_to_psto():
  #mysql连接方法
  #MySQLdb.connect()
  #postgl连接
  onn = MySQLdb.connect(database="testdb",               user="postgres",               password="pass123",              host="127.0.0.1",               port="5432")
  cur = conn.cursor()
  return cur

if __name__ == "__main__":
  #传入文件路径或文件名
  filename=sys.argv[1]
  f_csv=read_csv(filename)
  cur=conn_to_psto()
  for row in f_csv:
      # Process row
      field1=row[1]
      ...
    sql='''insert into .......(field1,field2,...) values(%,%,...) '''.format(field1=field1,field2=field2.........))
    cur.execute(sql)
  conn.commit()
  conn.close()