Terry Reedy <tjre...@udel.edu> wrote: > On 8/26/2020 11:10 AM, Chris Green wrote: > > > I have a simple[ish] local mbox mail delivery module as follows:- > ... > > It has run faultlessly for many years under Python 2. I've now > > changed the calling program to Python 3 and while it handles most > > E-Mail OK I have just got the following error:- > > > > Traceback (most recent call last): > > File "/home/chris/.mutt/bin/filter.py", line 102, in <module> > > mailLib.deliverMboxMsg(dest, msg, log) > ... > > File "/usr/lib/python3.8/email/generator.py", line 406, in write > > self._fp.write(s.encode('ascii', 'surrogateescape')) > > UnicodeEncodeError: 'ascii' codec can't encode character '\ufeff' in > position 4: ordinal not in range(128) > > '\ufeff' is the Unicode byte-order mark. It should not be present in an > ascii-only 3.x string and would not normally be present in general > unicode except in messages like this that talk about it. Read about it, > for instance, at > https://en.wikipedia.org/wiki/Byte_order_mark > > I would catch the error and print part or all of string s to see what is > going on with this particular message. Does it have other non-ascii chars? > I can provoke the error simply by sending myself an E-Mail with accented characters in it. I'm pretty sure my Linux system is set up correctly for UTF8 characters, I certainly seem to be able to send and receive these to others and I even get to see messages in other scripts such as arabic, chinese, etc.
The code above works perfectly in Python 2 delivering messages with accented (and other extended) characters with no problems at all. Sending myself E-Mails with accented characters works OK with the code running under Python 2. While an E-Mail body possibly *shouldn't* have non-ASCII characters in it one must be able to handle them without errors. In fact haven't the RFCs changed such that the message body should be 8-bit clean? Anyway I think the Python 3 mail handling libraries need to be able to pass extended characters through without errors. -- Chris Green ยท -- https://mail.python.org/mailman/listinfo/python-list