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Groups > comp.lang.python > #39929

stmplib MIMEText charset weirdness

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Can someone explain to me why I can't set the charset after the fact and still have it work.

For example:
>>> text = MIMEText('❤¥'.encode('utf-8'), 'html')
>>> text.set_charset('utf-8')
>>> text.as_string()
Traceback (most recent call last):
  File "<pyshell#53>", line 1, in <module>
    text.as_string()
  File "C:\Python32\lib\email\message.py", line 168, in as_string
    g.flatten(self, unixfrom=unixfrom)
  File "C:\Python32\lib\email\generator.py", line 91, in flatten
    self._write(msg)
  File "C:\Python32\lib\email\generator.py", line 137, in _write
    self._dispatch(msg)
  File "C:\Python32\lib\email\generator.py", line 163, in _dispatch
    meth(msg)
  File "C:\Python32\lib\email\generator.py", line 192, in _handle_text
    raise TypeError('string payload expected: %s' % type(payload))
TypeError: string payload expected: <class 'bytes'>

As opposed to:
>>> text = MIMEText('❤¥'.encode('utf-8'), 'html', 'utf-8')
>>> text.as_string()
'Content-Type: text/html; charset="utf-8"\nMIME-Version: 1.0\nContent-Transfer-Encoding: base64\n\n4p2kwqU=\n'


Side question:
>>> text = MIMEText('❤¥', 'html')
>>> text.set_charset('utf-8')
>>> text.as_string()
'MIME-Version: 1.0\nContent-Transfer-Encoding: 8bit\nContent-Type: text/html; charset="utf-8"\n\n❤¥'

Why is it now 8-bit encoding?

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Thread

stmplib MIMEText charset weirdness "Adam W." <AWasilenko@gmail.com> - 2013-02-25 20:00 -0800
  Re: stmplib MIMEText charset weirdness Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-02-26 07:10 +0000
    Re: stmplib MIMEText charset weirdness "Adam W." <AWasilenko@gmail.com> - 2013-02-26 07:29 -0800
  Re: stmplib MIMEText charset weirdness Terry Reedy <tjreedy@udel.edu> - 2013-02-26 14:46 -0500

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