Python3.3 email policy date field

[Helmut Jarausch]

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 <jarausch at 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


Many thanks for a hint,
Helmut.