Add iteration support to the Message class.

Specifically, time.strftime() no longer accepts a 0 in the yday position of a
time tuple, since that can crash some platform strftime() implementations.

parsedate_tz(): Change the return value to return 1 in the yday position.

Update tests in test_rfc822.py and test_email.py

(adapted from Quinn Dunkan's mimelib SF patch #573204).

imports e.g. test_support must do so using an absolute package name
such as "import test.test_support" or "from test import test_support".

This also updates the README in Lib/test, and gets rid of the
duplicate data dirctory in Lib/test/data (replaced by
Lib/email/test/data).

Now Tim and Jack can have at it. :)

Change default for get() back to None.
Will backport to 2.2.1.

fixed (re: SF bug #555035).  Include a unittest.

instead of calling the getaddrlist() method, since the latter doesn't
work with multiple calls (it will return the empty list for the second
and subsequent calls).

Closes SF bug #555035.  Include a unittest.

addresses.  Commented out because it still takes too long to run.

field exists with an empty value.

allows using the tests with unittest.py as a script.  The tests will
still run when run as a script themselves.

was already correctly parsed (contrary to a comment in Mailman).

test_rfc2822_phrases(): RFC 2822 now requires that we allow `.' in
phrases, which means we must accept dots in unquoted realname parts.
Add a test to check the change in rfc822.py 1.58.

Update to reflect using "" as the default value for the second parameter
to the get() method.

objects.

'verify' iff it's used by a test module...

and replaces them with a new API verify(). As a result the regression
suite will also perform its tests in optimization mode.

Written by Marc-Andre Lemburg. Copyright assigned to Guido van Rossum.

addresses with domain literals.

(I tweaked it slightly so examples are allowed to have no date too.)

for an old bug that's been gone a while, but was still documented
until a few minutes from now.

troublesome ones encountered on the c.l.py list.