How to decode UTF strings?

Fri Oct 25 22:57:17 EDT 2019

On 2019年10月26日 03:10, Arne Vajhøj wrote:
> On 10/25/2019 4:52 PM, DFS wrote:
>> =?iso-8859-9?b?T/B1eg==?= <oguz.ismail.uysal at gmail.com>
>> =?utf-8?Q?=EB=AF=B8?= <taeyeon10006 at gmail.com>
>> =?GBK?B?0Pu66A==?= <xuan.alan at 163.com>
>> =?UTF-8?B?zp3Or866zr/PgiDOks6tz4HOs86/z4I=?= <vergos.nikolas at gmail.com>
>> How does something like:
>> from email.header import decode_header
>> def test(s):
> print(s)
> s2 = decode_header(s)
> print(s2[0][0])
> print(s2[1][0].strip())
>> test('=?iso-8859-9?b?T/B1eg==?= <oguz.ismail.uysal at gmail.com>')
> test('=?utf-8?Q?=EB=AF=B8?= <taeyeon10006 at gmail.com>')
> test('=?GBK?B?0Pu66A==?= <xuan.alan at 163.com>')
> test('=?UTF-8?B?zp3Or866zr/PgiDOks6tz4HOs86/z4I=?=
> <vergos.nikolas at gmail.com>')
>> work?
>When you decode the header you get a number of parts, each with its own 
encoding.
Here's a simple example, based in your code:
from email.header import decode_header
def test(header, default_encoding='utf-8'):
 parts = []
 for data, encoding in decode_header(header):
 if isinstance(data, str):
 parts.append(data)
 else:
 parts.append(data.decode(encoding or default_encoding))
 print(''.join(parts))
test('=?iso-8859-9?b?T/B1eg==?= <oguz.ismail.uysal at gmail.com>')
test('=?utf-8?Q?=EB=AF=B8?= <taeyeon10006 at gmail.com>')
test('=?GBK?B?0Pu66A==?= <xuan.alan at 163.com>')
test('=?UTF-8?B?zp3Or866zr/PgiDOks6tz4HOs86/z4I=?= 
<vergos.nikolas at gmail.com>')