On 23/08/2012 09:30, Helmut Jarausch wrote:
Hi,

in response to a bug report I got the follow helpful comments from R. David 
Murray.
Many thanks to him. (Unfortunately, I don't know his email, so I can write him 
directly)

To generate an email (with non-ascii letters)

R. David Murray wrote:

But even better, so will this:

m = Message(policy=policy.SMTP)
m['From'] = "Günter Weiße <jarau...@igpm.rwth-aachen.de>"




This works, but now I cannot add a date field

Trying

m['Date'] = datetime.datetime.utcnow().strftime('%m/%d/%Y %I:%M:%S %p')

I get

Traceback (most recent call last):
   File "Test_EMail_Py3_4.py", line 23, in <module>
     msg['Date'] = datetime.datetime.utcnow().strftime('%m/%d/%Y %I:%M:%S %p')
   File "/usr/lib64/python3.3/email/message.py", line 359, in __setitem__
     self._headers.append(self.policy.header_store_parse(name, val))
   File "/usr/lib64/python3.3/email/policy.py", line 119, in header_store_parse
     return (name, self.header_factory(name, value))
   File "/usr/lib64/python3.3/email/headerregistry.py", line 583, in __call__
     return self[name](name, value)
   File "/usr/lib64/python3.3/email/headerregistry.py", line 194, in __new__
     cls.parse(value, kwds)
   File "/usr/lib64/python3.3/email/headerregistry.py", line 300, in parse
     value = utils.parsedate_to_datetime(value)
   File "/usr/lib64/python3.3/email/utils.py", line 243, in 
parsedate_to_datetime
     *dtuple, tz = __parsedate_tz(data)
TypeError: 'NoneType' object is not iterable

From what I've tried, it looks like the date can't be a string:

>>> m['Date'] = datetime.datetime.utcnow()
>>> m['Date']
'Thu, 23 Aug 2012 11:33:20 -0000'

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