[New-bugs-announce] [issue42578] Add tip when encountering UnicodeDecode/Encode Error in open()

[wyz23x2]

New submission from wyz23x2 <wyz23x2 at 163.com>:

Programmers often stumble over UnicodeDecode/EncodeError during open(), and especially beginners don't know what to do.
There are lots of questions on Stackoverflow:
https://stackoverflow.com/questions/16528468/while-reading-file-on-python-i-got-a-unicodedecodeerror-what-can-i-do-to-resol
https://stackoverflow.com/questions/38186847/python-line-replace-returns-unicodeencodeerror
https://stackoverflow.com/questions/3224268/python-unicode-encode-error
https://stackoverflow.com/questions/50331257/python3-unicodeencodingerror
https://stackoverflow.com/questions/24717808/python-cant-write-to-file-unicodeencodeerror
......
Maybe a helpful tip can be added to the error message.
We have done this before:
>>> (1,)(2, 3)                                                                                                                <stdin>:1: SyntaxWarning: 'tuple' object is not callable; perhaps you missed a comma?
>>> print 3                                                                                                                     
  File "<stdin>", line 1                                                                                                          
    print 3                                                                                                                             
          ^                                                                                                                   SyntaxError: Missing parentheses in call to 'print'. Did you mean print(3)?

----------
components: IO
messages: 382567
nosy: wyz23x2
priority: normal
severity: normal
status: open
title: Add tip when encountering UnicodeDecode/Encode Error in open()
versions: Python 3.10, Python 3.9

_______________________________________
Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue42578>
_______________________________________