flask UnicodeDecodeError: 'utf-8' codec can't decode byte 0xb3 in position 0: invalid start byte

Question

I'm learning the flask module
I copy the code but it didn't work and give my the UnicodeDecodeError

Thanks for your help

Answer 1

As the traceback point out, your computer's hostname has non-ASCII character. As this document said, you can use this way to get your hostname:

$ python
>>> from socket import *
>>> getnameinfo(("127.0.0.1", 0), 0)
('user-greyli', '0')  # here the 'user-greyli' is hostname

In windows system, the hostname was same as computer's name. So, you need to rename your computer's name.

How to do it? Just check this page. Besides, as a bonus, I capture a picture in Chinese that includes all the operation you need :)

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