user error messages (otherwise difficult to do without instrumenting
the source).

to floats.

PyNumber_Check, rather than trying to convert to a float.  Reimplemented
writer - now raises exceptions when it sees a quotechar but neither
doublequote or escapechar are set. Doublequote results are now more
consistent (eg, single quote should generate """", rather than "",
which is ambiguous).

gets).

Clarified that the returned object is file-like rather than an actual file.

when this limit is reached. Limit defaults to 128k, and is changed
by module set_field_limit() method. Previously, an unmatched quote
character could result in the entire file being read into the field
buffer, potentially exhausting virtual memory.

only contains instances of the dialect type, we can refer directly to the
dialect instances rather than creating new ones. In other words, if the
dialect comes from the registry, and we apply no further modifications,
the reader/writer can use the dialect object directly.

dialect type (which has a better idea of what is and isn't valid).

was done because we were previously performing validation of the dialect
from python, but this is now down within the C module. Also, the method
we were using to detect classes did not work with new-style classes.

record objects of internal dialect type, rather than instances of
python objects.

it for all failures, potentially masking other exceptions).

same as None.

rather than using PyString_Check/PyUnicode_Check.

profile.help() point at the library reference instead of profile.doc.

writer objects (other GC infrastructure already in place).

left in stream).

a delimiter. Previously, the 'network location' (<authority> in RFC 2396) would
become 'www.example.com?query=spam', while RFC 2396 does not allow a '?' in
<authority>. See bug #548176 for further discussion.

removing some duplication and gaining some flexibility in the process.

there's no need to subclass OptionParser.

* Document hasFeature(), createDocument(), CreateDocumentType(),
  hasAttribute(), hasAttributeNS().

* In the documentation for createDocument(), it is now stated that the Python
  DOM API allows implementations to forego creation of the document element
  child node, if no namespace and local name arguments are given. (This
  possibility is left open and unaddressed in the W3C spec).

* Addition by me: use 'name' rather than 'attname', for consistency with the
  DOM specification and the Python DOM API implementation.

Python file/line when the current C execution frame is inside
PyEval_EvalFrame.  These are commented out by default because GDB sometimes
crashes as a result (seems like a GDB bug).

Add a pyframe command that displays the current Python stack frame.  If the
marked lines are uncommented, it will also cause Emacs/XEmacs to display the
current file/line.

properties, and custom descriptors.

* removed special handling of properties

* added special handling of data descriptors - All data descriptors are grouped
  together in a section. For each item, the attribute name and doc string, if
  present, is displayed.

* disabled display of __slots__ attribute - since slots are descriptors, they
  are listed in the section described above

Thanks to John Belmonte for the patch!

still the same, so there should be no backwards-compatibility problems.

modules, replacing with email. Thanks to Josh Hoyt for the patch!

* replace deltree with shutil.rmtree()
* replace mkdirs with os.makedirs()
* fold touchfile into GlobTests.mktemp()

`glob.glob()` currently calls itself recursively to build a list of matches of
the dirname part of the pattern and then filters by the basename part. This is
effectively BFS. ``glob.glob('*/*/*/*/*/foo')`` will build a huge list of all
directories 5 levels deep even if only a handful of them contain a ``foo``
entry. A generator-based recusion would never have to store these list at once
by implementing DFS. This patch converts the `glob` function to an `iglob`
recursive generator . `glob()` now just returns ``list(iglob(pattern))``.

I also cleaned up the code a bit (reduced duplicate `has_magic()` checks and
created a second `glob0` helper func so that the main loop need not be
duplicated).

Thanks to Cherniavsky Beni for the patch!

* Use os.makedirs() instead os.mkdir(). (bug #975763)
* Use copystat() to copy directory bits (bug #1048878)

test_threading.test_foreign_thread():  new test does a basic check that
"foreign" threads can using the threading module, and that they create
a _DummyThread instance in at least one use case.  This isn't a very
good test, since a thread created by thread.start_new_thread() isn't
particularly "foreign".