Groups > comp.lang.python > #196963

Re: Printing UTF-8 mail to terminal

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From	Cameron Simpson <cs@cskk.id.au>
Newsgroups	comp.lang.python
Subject	Re: Printing UTF-8 mail to terminal
Date	Wed, 6 Nov 2024 08:20:44 +1100
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On 04Nov2024 13:02, Loris Bennett <loris.bennett@fu-berlin.de> wrote:
>OK, so I can do:
>
>######################################################################
>if args.verbose:
>    for k in mail.keys():
>        print(f"{k}: {mail.get(k)}")
>    print('')
>    print(mail.get_content())
>######################################################################
>
>prints what I want and is not wildly clunky, but I am a little surprised
>that I can't get a string representation of the whole email in one go.

A string representation of the whole message needs to be correctly 
encoded so that its components can be identified mechanically. So it 
needs to be a syntacticly valid RFC5322 message. Thus the encoding.

As an example (slightly contrived) of why this is important, multipart 
messages are delimited with distinct lines, and their content may not 
present such a line (even f it's in the "raw" original data).

So printing a whole message transcribes it in the encoded form so that 
it can be decoded mechanically. And conservativly, this is usually an 
ASCII compatibly encoding so that it can traverse various systems 
undamaged. This means the text requiring UTF8 encoding get further 
encoded as quoted printable to avoid ambiguity about the meaning of 
bytes/octets which have their high bit set.

BTW, doesn't this:

     for k in mail.keys():
         print(f"{k}: {mail.get(k)}")

print the quoted printable (i.e. not decoded) form of subject lines?

Cheers,
Cameron Simpson <cs@cskk.id.au>

Thread

Printing UTF-8 mail to terminal "Loris Bennett" <loris.bennett@fu-berlin.de> - 2024-10-31 16:33 +0100
  Re: Printing UTF-8 mail to terminal Left Right <olegsivokon@gmail.com> - 2024-10-31 17:38 +0100
    Re: Printing UTF-8 mail to terminal "Loris Bennett" <loris.bennett@fu-berlin.de> - 2024-11-01 07:52 +0100
      Re: Printing UTF-8 mail to terminal Inada Naoki <songofacandy@gmail.com> - 2024-11-03 12:08 +0900
        Re: Printing UTF-8 mail to terminal "Loris Bennett" <loris.bennett@fu-berlin.de> - 2024-11-04 11:48 +0100
  Re: Printing UTF-8 mail to terminal (Posting On Python-List Prohibited) Lawrence D'Oliveiro <ldo@nz.invalid> - 2024-10-31 19:35 +0000
  Re: Printing UTF-8 mail to terminal Cameron Simpson <cs@cskk.id.au> - 2024-11-01 07:50 +1100
    Re: Printing UTF-8 mail to terminal "Loris Bennett" <loris.bennett@fu-berlin.de> - 2024-11-01 08:11 +0100
      Re: Printing UTF-8 mail to terminal "Loris Bennett" <loris.bennett@fu-berlin.de> - 2024-11-01 10:10 +0100
        Re: Printing UTF-8 mail to terminal dieter.maurer@online.de - 2024-11-01 17:38 +0100
        Re: Printing UTF-8 mail to terminal Cameron Simpson <cs@cskk.id.au> - 2024-11-02 08:47 +1100
          Re: Printing UTF-8 mail to terminal "Loris Bennett" <loris.bennett@fu-berlin.de> - 2024-11-04 11:44 +0100
            Re: Printing UTF-8 mail to terminal "Loris Bennett" <loris.bennett@fu-berlin.de> - 2024-11-04 11:57 +0100
              Re: Printing UTF-8 mail to terminal "Loris Bennett" <loris.bennett@fu-berlin.de> - 2024-11-04 13:02 +0100
                Re: Printing UTF-8 mail to terminal "Peter J. Holzer" <hjp-python@hjp.at> - 2024-11-05 21:39 +0100
                Re: Printing UTF-8 mail to terminal Cameron Simpson <cs@cskk.id.au> - 2024-11-06 08:20 +1100
      Re: Printing UTF-8 mail to terminal Cameron Simpson <cs@cskk.id.au> - 2024-11-02 08:44 +1100

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