mistake. ( It may come in for sure tough)

make sure that out-of-range values consistently raise struct.error.

reorganize the test_struct module to remove duplicated code and tests.

integer packing, and reenable some previously broken tests.

tuples, dicts and sets on failure.

Many new handy type and comparison specific assert* methods have been added
that fail with error messages actually useful for debugging.  Contributed in
by Google and completed with help from mfoord and GvR at PyCon 2009 sprints.

Discussion lives in http://bugs.python.org/issue2578.

negative arguments.  Previously, it raised TypeError.

Thanks Lisandro Dalcin.

in struct's L format.

WarningsRecorder object. This makes the API simpler to use as no special object
must be learned.

Closes issue 3781.
Review by Benjamin Peterson.

Make test.test_support.catch_warnings more robust as discussed on python-dev. Also add explicit tests for itto test_warnings.

buildbot.

 Added checks for integer overflows, contributed by Google. Some are
 only available if asserts are left in the code, in cases where they
 can't be triggered from Python code.

I had to disable one test because it was functioning incorrectly, see #1530559
I also removed the debugging prints

across platforms:  it should now raise OverflowError on all
platforms.  (Previously it raised OverflowError only on
non IEEE 754 platforms.)

Also fix the (already existing) test for this behaviour
so that it actually raises TestFailed instead of just
referencing it.

compatibility with PEP3118.

test.test_support.catch_warning is more full-featured and provides the same
functionality.

Since guard_warnings_filter was added in 2.6 there is no
backwards-compatibility issues.

manager that protects warnings.filter from being modified once the context is
exited.

Passing float arguments to struct.pack when integers are expected
now triggers a DeprecationWarning.

string_reverse():  Simplify.

assertRaises():  Raise TestFailed on failure.

test_unpack_from(), test_pack_into(), test_pack_into_fn():  never
use `assert` to test for an expected result (it doesn't test anything
when Python is run with -O).

- Following Guido's comments, renamed

  * pack_to -> pack_into
  * recv_buf -> recv_into
  * recvfrom_buf -> recvfrom_into

- Made fixes to _struct.c according to Neal Norwitz comments on the checkins
  list.

- Converted some ints into the appropriate -- I hope -- ssize_t and size_t.

since the deprecation warning wouldn't be raised.

are run in the order:

    test_genexps (or any other doctest-based test)
    test_struct
    test_doctest

The `warnings` module needs an advertised way to save/restore
its internal filter list.

struct: modulo math plus warning on all endian-explicit formats for compatibility with older struct usage (ugly)

* Added socket.recv_buf() and socket.recvfrom_buf() methods, that use the buffer
  protocol (send and sendto already did).

* Added struct.pack_to(), that is the corresponding buffer compatible method to
  unpack_from().

* Fixed minor typos in arraymodule.