我尝试运行下面的代码，将symbols变量的组件添加到名为securities\u master的数据库中。我以前发布过此问题并修复了大量错误，但是，我仍然收到以下错误：

Traceback (most recent call last):

 File "C:/Users/Nathan/.PyCharmCE2018.1/config/scratches/scratch.py", line 28, in <module>
insert_btc_symbols(symbols)
 File "C:/Users/Nathan/.PyCharmCE2018.1/config/scratches/scratch.py", line 15, in insert_btc_symbols
con = MySQLdb.connect(host=db_host,user=db_user,db=db_name) #,passwd=db_pass
 File "C:\Python27\lib\site-packages\MySQLdb\__init__.py", line 81, in Connect
return Connection(*args,**kwargs)
 File "C:\Python27\lib\site-packages\MySQLdb\connections.py", line 193, in __init__
super(Connection, self).__init__(*args,**kwargs2)
_mysql_exceptions.OperationalError: (1251, 'Client does not support authentication protocol requested by server; consider upgrading MySQL client')

Process finished with exit code 1

我尝试了通过没有密码的用户和根用户以及密码的公钥进行连接，但都没有效果。以下是我正在执行的代码：

import datetime
import MySQLdb
from math import ceil

def obtain_btc():
    now = datetime.datetime.utcnow()
    symbols = ['BTC', 'Crypto', 'Bitcoin', 'No Sector', 'USD', now, now]
    return symbols

def insert_btc_symbols(symbols):
    db_host = 'localhost'
    db_user = 'natrob2'
    #db_pass = ''
    db_name = 'securities_master'
    con = MySQLdb.connect(host=db_host,user=db_user,db=db_name) #,passwd=db_pass
    column_str = "ticker, instrument, name, sector, currency, created_date, last_updated_date"
    insert_str = (("%s, ")*7)[:2]
    final_str = ("INSERT INTO symbol (%s) VALUES (%s)" % (column_str,insert_str))
    print (final_str,len(symbols))

    with con:
        cur = con.cursor()
        for i in range(0,int(ceil(len(symbols)/100.0))):
            cur.executemany(final_str,symbols[i*100:(i+1)*100-1])

if __name__ == "__main__":
    symbols = obtain_btc()
    insert_btc_symbols(symbols)