python邮件smtp模块报错：'utf-8' codec can't decode byte 0xb6

# 源代码：
import smtplib 
qqmail = smtplib.SMTP()
qqmail.connect('smtp.qq.com',465)

# 报错内容
Traceback (most recent call last):
  File "c:/Users/xxx/Desktop/abc/smtplib模块.py", line 3, in <module>
    qqmail = smtplib.SMTP()

  File "C:\Users\xxx\AppData\Local\Programs\Python\Python38\lib\smtplib.py", line 263, in __init__
    fqdn = socket.getfqdn() # return name

  File "C:\Users\xxx\AppData\Local\Programs\Python\Python38\lib\socket.py", line 756, in getfqdn
    hostname, aliases, ipaddrs = gethostbyaddr(name)

UnicodeDecodeError: 'utf-8' codec can't decode byte 0xb6 in position 2: invalid start byte

电脑名称改成英文

在代码开头加上 # coding: UTF-8