Commit Graph

56 Commits

Author SHA1 Message Date
Guido van Rossum 97c1adf393 Anti-registration of various ABC methods.
- Issue #25958: Support "anti-registration" of special methods from
  various ABCs, like __hash__, __iter__ or __len__.  All these (and
  several more) can be set to None in an implementation class and the
  behavior will be as if the method is not defined at all.
  (Previously, this mechanism existed only for __hash__, to make
  mutable classes unhashable.)  Code contributed by Andrew Barnert and
  Ivan Levkivskyi.
2016-08-18 09:22:23 -07:00
Serhiy Storchaka 8dc2ec1513 Issue #26492: Added additional tests for exhausted iterators of mutable sequences. 2016-03-30 21:01:26 +03:00
Serhiy Storchaka fbb1c5ee06 Issue #26494: Fixed crash on iterating exhausting iterators.
Affected classes are generic sequence iterators, iterators of str, bytes,
bytearray, list, tuple, set, frozenset, dict, OrderedDict, corresponding
views and os.scandir() iterator.
2016-03-30 20:40:02 +03:00
Serhiy Storchaka aabafe7bc2 Issue #26015: Added new tests for pickling iterators of mutable sequences. 2016-03-06 14:10:24 +02:00
Serhiy Storchaka 4faf5c5655 Issue #23985: Fixed integer overflow in iterator object. Patch by
Clement Rouault.
2015-05-21 20:50:25 +03:00
Serhiy Storchaka bad1257c96 Issue #22777: Test pickling with all protocols. 2014-12-15 14:03:42 +02:00
Ezio Melotti 739e1790f8 #7782: merge with 3.3. 2012-11-18 23:16:02 +02:00
Kristján Valur Jónsson 31668b8f7a Issue #14288: Serialization support for builtin iterators. 2012-04-03 10:49:41 +00:00
Benjamin Peterson 945c579829 Merged revisions 82167 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk

........
  r82167 | benjamin.peterson | 2010-06-22 15:32:02 -0500 (Tue, 22 Jun 2010) | 1 line

  mark ref counting as impl detail
........
2010-06-22 20:34:34 +00:00
Benjamin Peterson 1fa17e65a3 Merged revisions 82165 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk

........
  r82165 | benjamin.peterson | 2010-06-22 15:26:20 -0500 (Tue, 22 Jun 2010) | 1 line

  must force gc here
........
2010-06-22 20:29:32 +00:00
Benjamin Peterson 577473fe68 use assert[Not]In where appropriate
A patch from Dave Malcolm.
2010-01-19 00:09:57 +00:00
Benjamin Peterson c9c0f201fe convert old fail* assertions to assert* 2009-06-30 23:06:06 +00:00
Amaury Forgeot d'Arc f343e01c17 Merged revisions 68560 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk

........
  r68560 | amaury.forgeotdarc | 2009-01-13 00:36:55 +0100 (mar., 13 janv. 2009) | 6 lines

  #3720: Interpreter crashes when an evil iterator removes its own next function.

  Now the slot is filled with a function that always raises.

  Will not backport: extensions compiled with 2.6.x would not run on 2.6.0.
........
2009-01-12 23:58:21 +00:00
Benjamin Peterson ee8712cda4 #2621 rename test.test_support to test.support 2008-05-20 21:35:26 +00:00
Raymond Hettinger 1dfde1ddc0 Replace map(None, *iterables) with zip(*iterables). 2008-01-22 23:25:35 +00:00
Collin Winter 3add4d78ff Raise statement normalization in Lib/test/. 2007-08-29 23:37:32 +00:00
Guido van Rossum c1f779cb01 Merged revisions 56125-56153 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/branches/p3yk

........
  r56127 | georg.brandl | 2007-06-30 09:32:49 +0200 (Sat, 30 Jun 2007) | 2 lines

  Fix a place where floor division would be in order.
........
  r56135 | guido.van.rossum | 2007-07-01 06:13:54 +0200 (Sun, 01 Jul 2007) | 28 lines

  Make map() and filter() identical to itertools.imap() and .ifilter(),
  respectively.

  I fixed two bootstrap issues, due to the dynamic import of itertools:

  1. Starting python requires that map() and filter() are not used until
     site.py has added build/lib.<arch> to sys.path.
  2. Building python requires that setup.py and distutils and everything
     they use is free of map() and filter() calls.

  Beyond this, I only fixed the tests in test_builtin.py.
  Others, please help fixing the remaining tests that are now broken!
  The fixes are usually simple:
  a. map(None, X) -> list(X)
  b. map(F, X) -> list(map(F, X))
  c. map(lambda x: F(x), X) -> [F(x) for x in X]
  d. filter(F, X) -> list(filter(F, X))
  e. filter(lambda x: P(x), X) -> [x for x in X if P(x)]

  Someone, please also contribute a fixer for 2to3 to do this.
  It can leave map()/filter() calls alone that are already
  inside a list() or sorted() call or for-loop.

  Only in rare cases have I seen code that depends on map() of lists
  of different lengths going to the end of the longest, or on filter()
  of a string or tuple returning an object of the same type; these
  will need more thought to fix.
........
  r56136 | guido.van.rossum | 2007-07-01 06:22:01 +0200 (Sun, 01 Jul 2007) | 3 lines

  Make it so that test_decimal fails instead of hangs, to help automated
  test runners.
........
  r56139 | georg.brandl | 2007-07-01 18:20:58 +0200 (Sun, 01 Jul 2007) | 2 lines

  Fix a few test cases after the map->imap change.
........
  r56142 | neal.norwitz | 2007-07-02 06:38:12 +0200 (Mon, 02 Jul 2007) | 1 line

  Get a bunch more tests passing after converting map/filter to return iterators.
........
  r56147 | guido.van.rossum | 2007-07-02 15:32:02 +0200 (Mon, 02 Jul 2007) | 4 lines

  Fix the remaining failing unit tests (at least on OSX).
  Also tweaked urllib2 so it doesn't raise socket.gaierror when
  all network interfaces are turned off.
........
2007-07-03 08:25:58 +00:00
Walter Dörwald 5de48bdd19 Simplify various spots where: str() is called on something
that already is a string or the existence of the str class
is checked or a check is done for str twice. These all stem
from the initial unicode->str replacement.
2007-06-11 21:38:39 +00:00
Walter Dörwald 1f5947b30a Remove have_unicode checks and merge those tests into the
normal code (or drop them if they only repeat previous
tests).
2007-05-22 16:52:54 +00:00
Guido van Rossum 805365ee39 Merged revisions 55007-55179 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/branches/p3yk

........
  r55077 | guido.van.rossum | 2007-05-02 11:54:37 -0700 (Wed, 02 May 2007) | 2 lines

  Use the new print syntax, at least.
........
  r55142 | fred.drake | 2007-05-04 21:27:30 -0700 (Fri, 04 May 2007) | 1 line

  remove old cruftiness
........
  r55143 | fred.drake | 2007-05-04 21:52:16 -0700 (Fri, 04 May 2007) | 1 line

  make this work with the new Python
........
  r55162 | neal.norwitz | 2007-05-06 22:29:18 -0700 (Sun, 06 May 2007) | 1 line

  Get asdl code gen working with Python 2.3.  Should continue to work with 3.0
........
  r55164 | neal.norwitz | 2007-05-07 00:00:38 -0700 (Mon, 07 May 2007) | 1 line

  Verify checkins to p3yk (sic) branch go to 3000 list.
........
  r55166 | neal.norwitz | 2007-05-07 00:12:35 -0700 (Mon, 07 May 2007) | 1 line

  Fix this test so it runs again by importing warnings_test properly.
........
  r55167 | neal.norwitz | 2007-05-07 01:03:22 -0700 (Mon, 07 May 2007) | 8 lines

  So long xrange.  range() now supports values that are outside
  -sys.maxint to sys.maxint.  floats raise a TypeError.

  This has been sitting for a long time.  It probably has some problems and
  needs cleanup.  Objects/rangeobject.c now uses 4-space indents since
  it is almost completely new.
........
  r55171 | guido.van.rossum | 2007-05-07 10:21:26 -0700 (Mon, 07 May 2007) | 4 lines

  Fix two tests that were previously depending on significant spaces
  at the end of a line (and before that on Python 2.x print behavior
  that has no exact equivalent in 3.0).
........
2007-05-07 22:24:25 +00:00
Guido van Rossum ef87d6ed94 Rip out all the u"..." literals and calls to unicode(). 2007-05-02 19:09:54 +00:00
Georg Brandl a18af4e7a2 PEP 3114: rename .next() to .__next__() and add next() builtin. 2007-04-21 15:47:16 +00:00
Brett Cannon 0caf6d85f9 Fix test_iter after the dict views conversion. 2007-02-22 04:49:03 +00:00
Guido van Rossum cc2b016125 - PEP 3106: dict.iterkeys(), .iteritems(), .itervalues() are now gone;
and .keys(), .items(), .values() return dict views.

The dict views aren't fully functional yet; in particular, they can't
be compared to sets yet.  but they are useful as "iterator wells".

There are still 27 failing unit tests; I expect that many of these
have fairly trivial fixes, but there are so many, I could use help.
2007-02-11 06:12:03 +00:00
Jack Diederich 4dafcc4ece - patch #1600346 submitted by Tomer Filiba
- Renamed nb_nonzero slots to nb_bool
- Renamed __nonzero__ methods to __bool__
- update core, lib, docs, and tests to match
2006-11-28 19:15:13 +00:00
Guido van Rossum 801f0d78b5 Make built-in zip() equal to itertools.izip().
I mea, *really* equal -- for now, the implementation just imports
itertools. :-)
The only other changes necessary were various unit tests that were
assuming zip() returns a real list.  No "real" code made this assumption.
2006-08-24 19:48:10 +00:00
Alex Martelli 01c77c6628 Anna Ravenscroft identified many occurrences of "file" used to open a file
in the stdlib and changed each of them to use "open" instead.  At this
time there are no other known occurrences that can be safely changed (in
Lib and all subdirectories thereof).
2006-08-24 02:58:11 +00:00
Guido van Rossum 89da5d7c3d Kill reduce(). A coproduction of John Reese, Jacques Frechet, and Alex M. 2006-08-22 00:21:25 +00:00
Raymond Hettinger eaef615116 As discussed on python-dev, changed builtin.zip() to handle zero arguments
by returning an empty list instead of raising a TypeError.
2003-08-02 07:42:57 +00:00
Tim Peters cae330e449 Don't rebind True and False. 2002-12-23 16:50:58 +00:00
Guido van Rossum 8ee5243434 Mark xreadlines deprecated. Don't use f.xreadlines() in test_iter.py. 2002-08-06 17:14:04 +00:00
Barry Warsaw 04f357cffe Get rid of relative imports in all unittests. Now anything that
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. :)
2002-07-23 19:04:11 +00:00
Guido van Rossum 674eae65ea Bunch of tests to make sure that StopIteration is a sink state. 2002-07-16 21:48:11 +00:00
Tim Peters 67d687a114 builtin_zip(): Take a good guess at how big the result list will be,
and allocate it in one gulp.

This isn't a bugfix, it's just a minor optimization that may or may not
pay off.
2002-04-29 21:27:32 +00:00
Guido van Rossum bb8f59a371 unpack_iterable(): Add a missing DECREF in an error case. Reported by
Armin Rigo (SF bug #488477).  Added a testcase to test_unpack_iter()
in test_iter.py.
2001-12-03 19:33:25 +00:00
Tim Peters 527e64fd68 Whitespace normalization. 2001-10-04 05:36:56 +00:00
Tim Peters 2c9aa5ea8d Generalize file.writelines() to allow iterable objects. 2001-09-23 04:06:05 +00:00
Fred Drake 2e2be3760c Change the PyUnit-based tests to use the test_main() approach. This
allows using the tests with unittest.py as a script.  The tests will
still run when run as a script themselves.
2001-09-20 21:33:42 +00:00
Tim Peters 16a77adfbd Generalize operator.indexOf (PySequence_Index) to work with any
iterable object.  I'm not sure how that got overlooked before!

Got rid of the internal _PySequence_IterContains, introduced a new
internal _PySequence_IterSearch, and rewrote all the iteration-based
"count of", "index of", and "is the object in it or not?" routines to
just call the new function.  I suppose it's slower this way, but the
code duplication was getting depressing.
2001-09-08 04:00:12 +00:00
Martin v. Löwis 339d0f720e Patch #445762: Support --disable-unicode
- Do not compile unicodeobject, unicodectype, and unicodedata if Unicode is disabled
- check for Py_USING_UNICODE in all places that use Unicode functions
- disables unicode literals, and the builtin functions
- add the types.StringTypes list
- remove Unicode literals from most tests.
2001-08-17 18:39:25 +00:00
Tim Peters d6d010b874 Teach the UNPACK_SEQUENCE opcode how to tease an iterable object into
giving up the goods.
NEEDS DOC CHANGES
2001-06-21 02:49:55 +00:00
Tim Peters 8572b4fedf Generalize zip() to work with iterators.
NEEDS DOC CHANGES.
More AttributeErrors transmuted into TypeErrors, in test_b2.py, and,
again, this strikes me as a good thing.
This checkin completes the iterator generalization work that obviously
needed to be done.  Can anyone think of others that should be changed?
2001-05-06 01:05:02 +00:00
Tim Peters ef0c42d4e5 Get rid of silly 5am "del" stmts. 2001-05-05 21:36:52 +00:00
Tim Peters cb8d368b82 Reimplement PySequence_Contains() and instance_contains(), so they work
safely together and don't duplicate logic (the common logic was factored
out into new private API function _PySequence_IterContains()).
Visible change:
    some_complex_number  in  some_instance
no longer blows up if some_instance has __getitem__ but neither
__contains__ nor __iter__.  test_iter changed to ensure that remains true.
2001-05-05 21:05:01 +00:00
Tim Peters 75f8e35ef4 Generalize PySequence_Count() (operator.countOf) to work with iterators. 2001-05-05 11:33:43 +00:00
Tim Peters de9725f135 Make 'x in y' and 'x not in y' (PySequence_Contains) play nice w/ iterators.
NEEDS DOC CHANGES
A few more AttributeErrors turned into TypeErrors, but in test_contains
this time.
The full story for instance objects is pretty much unexplainable, because
instance_contains() tries its own flavor of iteration-based containment
testing first, and PySequence_Contains doesn't get a chance at it unless
instance_contains() blows up.  A consequence is that
    some_complex_number in some_instance
dies with a TypeError unless some_instance.__class__ defines __iter__ but
does not define __getitem__.
2001-05-05 10:06:17 +00:00
Tim Peters 2cfe368283 Make unicode.join() work nice with iterators. This also required a change
to string.join(), so that when the latter figures out in midstream that
it really needs unicode.join() instead, unicode.join() can actually get
all the sequence elements (i.e., there's no guarantee that the sequence
passed to string.join() can be iterated over *again* by unicode.join(),
so string.join() must not pass on the original sequence object anymore).
2001-05-05 05:36:48 +00:00
Tim Peters 6912d4ddf0 Generalize tuple() to work nicely with iterators.
NEEDS DOC CHANGES.
This one surprised me!  While I expected tuple() to be a no-brainer, turns
out it's actually dripping with consequences:
1. It will *allow* the popular PySequence_Fast() to work with any iterable
   object (code for that not yet checked in, but should be trivial).
2. It caused two std tests to fail.  This because some places used
   PyTuple_Sequence() (the C spelling of tuple()) as an indirect way to test
   whether something *is* a sequence.  But tuple() code only looked for the
   existence of sq->item to determine that, and e.g. an instance passed
   that test whether or not it supported the other operations tuple()
   needed (e.g., __len__).  So some things the tests *expected* to fail
   with an AttributeError now fail with a TypeError instead.  This looks
   like an improvement to me; e.g., test_coercion used to produce 559
   TypeErrors and 2 AttributeErrors, and now they're all TypeErrors.  The
   error details are more informative too, because the places calling this
   were *looking* for TypeErrors in order to replace the generic tuple()
   "not a sequence" msg with their own more specific text, and
   AttributeErrors snuck by that.
2001-05-05 03:56:37 +00:00
Tim Peters 15d81efb8a Generalize reduce() to work with iterators.
NEEDS DOC CHANGES.
2001-05-04 04:39:21 +00:00
Tim Peters 8bc10b0c57 Purge redundant cut&paste line. 2001-05-03 23:58:47 +00:00