UnicodeError while handling a bug

[criptocoko]

I'm getting the following error while sending an email when a bug occurs:
ERROR HAPPENS ...
...
..
During handling of the above exception, another exception occurred:

File "/usr/local/lib/python3.10/dist-packages/web/application.py", line 278, in process
return p(lambda: process(processors))
File "/usr/local/lib/python3.10/dist-packages/web/application.py", line 686, in processor
return handler()
File "/usr/local/lib/python3.10/dist-packages/web/application.py", line 278, in
return p(lambda: process(processors))
File "/usr/local/lib/python3.10/dist-packages/web/application.py", line 287, in process
raise self.internalerror()
File "/usr/local/lib/python3.10/dist-packages/web/debugerror.py", line 354, in emailerrors_internal
sendmail(
File "/usr/local/lib/python3.10/dist-packages/web/utils.py", line 1449, in sendmail
mail.send()
File "/usr/local/lib/python3.10/dist-packages/web/utils.py", line 1544, in send
self.send_with_smtp(message_text)
File "/usr/local/lib/python3.10/dist-packages/web/utils.py", line 1592, in send_with_smtp
smtpserver.sendmail(self.from_address, self.recipients, message_text)
File "/usr/lib/python3.10/smtplib.py", line 875, in sendmail
msg = _fix_eols(msg).encode('ascii')
UnicodeEncodeError: 'ascii' codec can't encode character '\u2019' in position 12430: ordinal not in range(128)

If i add message_text.enconde('ascii", errors="ignore") the problem is fixed but i don't want to patch webpy code.... is there a way to fix this?

[iredmail]

Please show us code snippet to reproduce this issue.

[criptocoko]

Sure, here is an example of web.debugerror.emailerrors_internal() that generates a non unicode char

import web

web.config.smtp_server="postfix" # valid smtp
web.config.smtp_port=587 

web.utils.sendmail( "your buggy site <root@example.com>", 
"the bugfixer <bugfixer@example.com>", 
"bug:bla bla", "message", 
attachments=[dict(filename="bug.html", content=web.utils.safestr('  bla ’ bla '))]) ## example of attachemnt with a non unicode char  '\u2019' 

[criptocoko]

by the way.. because of this error i had to reboot my servers.. Since everytime it tried to send an email it crashed because of the bug, that generates another email to send, so it generated a loop of never sending emails ..

[cclauss]

@Z4nzu It would be helpful if we created a https://github.com/webpy/webpy/tree/master/tests/test_debugerror.py file that contained at least one pytest that failed based on @criptocoko scenarios above but then passed when #762 is merged. That way we would have a test in place to ensure that we never have this problem again. Thoughts?

[Z4nzu]

Could you please explain a bit more in detail ?

I got your point.! Are you talking about creating a test case file for the issue we resolved ?

[cclauss]

Correct. Please look at the other files in tests/ to see that they contain pytests that we run in our GitHub Actions.