Moved the code for _PyThread_CurrentFrames() up, so it's no longer
in a huge "#ifdef WITH_THREAD" block (I didn't realize it /was/ in
one).

Changed test_sys's test_current_frames() so it passes with or without
thread supported compiled in.

Note that test_sys fails when Python is compiled without threads,
but for an unrelated reason (the old test_exit() fails with an
indirect ImportError on the `thread` module).  There are also
other unrelated compilation failures without threads, in extension
modules (like ctypes); at least the core compiles again.

Do we really support --without-threads?  If so, there are several
problems remaining.

of values in the time tuple passed in.  Unfortunately people came to rely on
undocumented behaviour of setting unneeded values to 0, regardless of if it was
within the valid range.  Now those values force the value internally to the
minimum value when 0 is passed in.

Specifically, instead of raising a ValueError when there is a single tick in
the parameter, simply return that the entire string unquoted, with None for
both the charset and the language.  Also, if there are more than 2 ticks in
the parameter, interpret the first three parts as the standard RFC 2231 parts,
then the rest of the parts as the encoded string.

Test cases added.

Original fewer-than-3-parts fix by Tokio Kikuchi.

Resolves SF bug # 1218081.  I will back port the fix and tests to Python 2.4
(email 3.0) and Python 2.3 (email 2.5).

Also, bump the version number to email 4.0.1, removing the 'alpha' moniker.

1. 'as' highlighted as builtin in comment string on import line
2. Comments such as "#False identity" which start with a keyword immediately
   after the '#' character aren't colored as comments.
3. u or U beginning unicode string not correctly highlighted

Closes bug 1325071

SF bug #1504456 (partial)

v2 can be NULL if exception2 is NULL.  I don't think that condition can happen,
but I'm not sure it can't either.  Now the code will protect against either
being NULL.

DECREF otherset rather than XDECREF in error conditions too.

Reported by Klockwork #154.

be NULL so assert it.  Fix one place where we could have passed NULL.

Reported by Klocwork #66.

A NULL would crash the PyTuple_Check().  Now make NULL return a SystemError.

Reported by Klocwork #73.

Reported by Klocwork #67

be wrong.

The real change is to pass (bufsz - 1) to PyOS_ascii_formatd and 1
to strncat.  strncat copies n+1 bytes from src (not dest).

Reported by Klocwork #58.

Reported by Klocwork, #98.

Reported by Klocwork #152.

Reported by Klocwork, #39.

func is returned from PyArg_ParseTuple and also dereffed.

Reported by Klocwork, #30 (self one at least).

z is known to be NULL, nothing to DECREF.

Reported by Klockwork, #107.

had more than 255 blank lines.  Byte codes need to go first, line #s second.

exactly one element is enabled again.

PyUnicode_AsWideChar replacement functions compatible to the official
functions by using Py_ssize_t instead of int.