codec for UTF-8 with BOM

From	Ulrich Eckhardt <ulrich.eckhardt@dominolaser.com>
Newsgroups	comp.lang.python
Subject	codec for UTF-8 with BOM
Followup-To	comp.lang.python
Date	2011-05-02 10:34 +0200
Message-ID	<cn6298-us4.ln1@satorlaser.homedns.org> (permalink)

Followups directed to: comp.lang.python

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Hi!

I want to write a file starting with the BOM and using UTF-8, and stumbled 
across some problems:

1. I would have expected one of the codecs to be 'UTF-8 with BOM' or 
something like that, but I can't find the correct name. Also, I can't find a 
way to get a list of the supported codecs at all, which strikes me as odd.


2. I couldn't find a way to write the BOM either. Writing codecs.BOM doesn't 
work, as it is an already encoded byte string. Of course, I can write 
u'\ufeff', but I'd rather avoid such magic numbers in my code.


3. The docs mention encodings.utf_8_sig, available since 2.5, but I can't 
locate that thing there either. What's going on here?


What would you do?

Uli

-- 
Domino Laser GmbH
Geschäftsführer: Thorsten Föcking, Amtsgericht Hamburg HR B62 932

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codec for UTF-8 with BOM Ulrich Eckhardt <ulrich.eckhardt@dominolaser.com> - 2011-05-02 10:34 +0200
  Re: codec for UTF-8 with BOM Chris Rebert <clp2@rebertia.com> - 2011-05-02 02:47 -0700
    Re: codec for UTF-8 with BOM Ulrich Eckhardt <ulrich.eckhardt@dominolaser.com> - 2011-05-02 12:30 +0200
      Re: codec for UTF-8 with BOM Peter Otten <__peter__@web.de> - 2011-05-02 13:42 +0200

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