[New-bugs-announce] [issue25411] SMTPHandler in the logging module fails with unicode strings

[simon04]

New submission from simon04:

This relates to the unresolved issue9208 (Python 2).

SMTPHandler fails when receiving unicode strings.

Example (from msg109621):
import logging,logging.handlers
smtpHandler = logging.handlers.SMTPHandler(
    mailhost=("smtp.free.fr",25),
    fromaddr="from at free.fr", toaddrs="to at free.fr",
    subject=u"error message")
LOG = logging.getLogger()
LOG.addHandler(smtpHandler)
LOG.error(u"accentu\u00E9")

… fails:
--- Logging error ---
Traceback (most recent call last):
  File "/usr/lib/python3.5/logging/handlers.py", line 985, in emit
    smtp.sendmail(self.fromaddr, self.toaddrs, msg)
  File "/usr/lib/python3.5/smtplib.py", line 846, in sendmail
    msg = _fix_eols(msg).encode('ascii')
UnicodeEncodeError: 'ascii' codec can't encode character '\xe9' in position 108: ordinal not in range(128)
Call stack:
  File "/tmp/x.py", line 8, in <module>
    LOG.error(u"accentu\u00E9")
Message: 'accentué'
Arguments: ()

As discussed in msg252928 and msg252931, EmailMessage/send_message should be used instead to resolve this issue.

Patch attached.

----------
files: SMTPHandler-unicode-v1.patch
keywords: patch
messages: 253043
nosy: simon04
priority: normal
severity: normal
status: open
title: SMTPHandler in the logging module fails with unicode strings
versions: Python 3.4, Python 3.5, Python 3.6
Added file: http://bugs.python.org/file40787/SMTPHandler-unicode-v1.patch

_______________________________________
Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue25411>
_______________________________________