Re: HeaderParseError

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From	Thomas Guettler <hv@tbz-pariv.de>
Newsgroups	comp.lang.python
Subject	Re: HeaderParseError
Date	Mon, 04 Jul 2011 12:38:39 +0200
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On 04.07.2011 11:51, Peter Otten wrote:
> Thomas Guettler wrote:
> 
>> I get a HeaderParseError during decode_header(), but Thunderbird can
>> display the name.
>>
>>>>> from email.header import decode_header
>>>>>
> decode_header('=?iso-8859-1?B?QW5tZWxkdW5nIE5ldHphbnNjaGx1c3MgU_xkcmluZzNwLmpwZw==?=')
>> Traceback (most recent call last):
>>   File "<stdin>", line 1, in <module>
>>   File "/usr/lib64/python2.6/email/header.py", line 101, in decode_header
>>     raise HeaderParseError
>> email.errors.HeaderParseError
>>
>>
>> How can I parse this in Python?
> 
> Trying to decode as much as possible:
> 
>>>> s = "QW5tZWxkdW5nIE5ldHphbnNjaGx1c3MgU_xkcmluZzNwLmpwZw==?="
>>>> for n in range(len(s), 0, -1):
> ...     try: t = s[:n].decode("base64")
> ...     except: pass
> ...     else: break
> ...
>>>> n, t
> (49, 'Anmeldung Netzanschluss S\x19\x1c\x9a[\x99\xcc\xdc\x0b\x9a\x9c\x19')
>>>> print t.decode("iso-8859-1")
> Anmeldung Netzanschluss S[ÌÜ
> 
>>>> s[n:]
> 'w==?='
> 
> The characters after "...Netzanschluss " look like garbage. What does 
> Thunderbird display?

Hi Peter, Thunderbird shows this:

Anmeldung Netzanschluss Südring3p.jpg

  Thomas

-- 
Thomas Guettler, http://www.thomas-guettler.de/
E-Mail: guettli (*) thomas-guettler + de

Thread

HeaderParseError Thomas Guettler <hv@tbz-pariv.de> - 2011-07-04 10:31 +0200
  Re: HeaderParseError Peter Otten <__peter__@web.de> - 2011-07-04 11:51 +0200
    Re: HeaderParseError Thomas Guettler <hv@tbz-pariv.de> - 2011-07-04 12:38 +0200
      Re: HeaderParseError Peter Otten <__peter__@web.de> - 2011-07-04 13:20 +0200
        Re: HeaderParseError Thomas Guettler <hv@tbz-pariv.de> - 2011-07-05 14:02 +0200

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