Commit Graph

50 Commits

Author SHA1 Message Date
Nikita Sobolev bb2e96f6f4
gh-109956: Also test typing.NamedTuple with copy.replace() (GH-109957) 2023-10-03 14:13:13 +03:00
Serhiy Storchaka 6f3c138dfa
gh-108751: Add copy.replace() function (GH-108752)
It creates a modified copy of an object by calling the object's
__replace__() method.

It is a generalization of dataclasses.replace(), named tuple's _replace()
method and replace() methods in various classes, and supports all these
stdlib classes.
2023-09-06 23:55:42 +03:00
Nikita Sobolev 729ab9b622
gh-100871: Improve `copy` module tests (GH-100872)
CC @AlexWaygood as the reviewer of https://github.com/python/cpython/pull/100818

Automerge-Triggered-By: GH:AlexWaygood
2023-01-11 09:14:41 -08:00
Nikita Sobolev d329f859b9
gh-99430: Remove duplicated tests for old-styled classes (#99432)
python 1 & 2 were a loong time ago.
2022-11-13 10:30:00 -08:00
Serhiy Storchaka a365dd64c2
gh-90494: Reject 6th element of the __reduce__() tuple (GH-93609)
copy.copy() and copy.deepcopy() now always raise a TypeError if
__reduce__() returns a tuple with length 6 instead of silently ignore
the 6th item or produce incorrect result.
2022-06-09 10:12:43 +03:00
Serhiy Storchaka 2a8127cafe
bpo-25130: Add calls of gc.collect() in tests to support PyPy (GH-28005) 2021-08-29 14:04:40 +03:00
Serhiy Storchaka 5f4b229df7
bpo-40792: Make the result of PyNumber_Index() always having exact type int. (GH-20443)
Previously, the result could have been an instance of a subclass of int.

Also revert bpo-26202 and make attributes start, stop and step of the range
object having exact type int.

Add private function _PyNumber_Index() which preserves the old behavior
of PyNumber_Index() for performance to use it in the conversion functions
like PyLong_AsLong().
2020-05-28 10:33:45 +03:00
Guðni Natan Gunnarsson 9f3fc6c5b4 bpo-38293: Allow shallow and deep copying of property objects (GH-16438)
Copying property objects results in a TypeError. Steps to reproduce:

```
>>> import copy
>>> obj = property()
>>> copy.copy(obj)
````

This affects both shallow and deep copying.  
My idea for a fix is to add property objects to the list of "atomic" objects in the copy module.
These already include types like functions and type objects.

I also added property objects to the unit tests test_copy_atomic and test_deepcopy_atomic. This is my first PR, and it's highly likely I've made some mistake, so please be kind :)


https://bugs.python.org/issue38293
2020-01-12 09:41:49 -08:00
Serhiy Storchaka 818e18dd94 Issue #26167: Minimized overhead in copy.copy() and copy.deepcopy().
Optimized copying and deepcopying bytearrays, NotImplemented, slices,
short lists, tuples, dicts, sets.
2016-03-06 14:56:57 +02:00
Serhiy Storchaka 0a20bbf669 Issue #26202: copy.deepcopy() now correctly copies range() objects with
non-atomic attributes.
2016-01-28 21:43:35 +02:00
Serhiy Storchaka b63015b01a Issue #25718: Fixed copying object with state with boolean value is false. 2015-11-30 17:35:40 +02:00
Serhiy Storchaka cbbec1c53f Issue #25718: Fixed copying object with state with boolean value is false. 2015-11-30 17:20:02 +02:00
Yury Selivanov f488fb422a Issue #19235: Add new RecursionError exception. Patch by Georg Brandl. 2015-07-03 01:04:23 -04:00
Zachary Ware 38c707e7e0 Issue #21741: Update 147 test modules to use test discovery.
I have compared output between pre- and post-patch runs of these tests
to make sure there's nothing missing and nothing broken, on both
Windows and Linux.  The only differences I found were actually tests
that were previously *not* run.
2015-04-13 15:00:43 -05:00
Serhiy Storchaka 32af7549a7 Issue #20289: The copy module now uses pickle protocol 4 (PEP 3154) and
supports copying of instances of classes whose __new__ method takes
keyword-only arguments.
2015-03-24 18:06:42 +02:00
Antoine Pitrou dc9215f882 Issue #20791: copy.copy() now doesn't make a copy when the input is a bytes object. Initial patch by Peter Otten. 2014-02-27 22:14:31 +01:00
Alexandre Vassalotti 5c1c3b4f19 Issue #11480: Fixed copy.copy to work with classes with custom metaclasses.
Patch by Daniel Urban.
2013-12-01 13:25:26 -08:00
Sandro Tosi 4dc9c84ed9 #11572: improvements to copy module tests along with removal of old test suite 2011-08-05 23:05:35 +02:00
Benjamin Peterson e90ec366fb don't memoize objects that are their own copies (closes #12422)
Patch mostly by Alex Gaynor.
2011-06-27 16:22:46 -05:00
Antoine Pitrou 3941a8fece Issue #1100562: Fix deep-copying of objects derived from the list and dict types.
Patch by Michele Orrù and Björn Lindqvist.
2010-09-04 17:40:21 +00:00
Ezio Melotti b58e0bd8bb use assert[Not]In where appropriate 2010-01-23 15:40:09 +00:00
Antoine Pitrou 1fc0d2b364 Merged revisions 76571 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk

........
  r76571 | antoine.pitrou | 2009-11-28 16:55:58 +0100 (sam., 28 nov. 2009) | 3 lines

  Issue #1515: Enable use of deepcopy() with instance methods.  Patch by Robert Collins.
........
2009-11-28 15:58:27 +00:00
Benjamin Peterson c9c0f201fe convert old fail* assertions to assert* 2009-06-30 23:06:06 +00:00
Antoine Pitrou 6e61006cc2 Merged revisions 72669 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk

........
  r72669 | antoine.pitrou | 2009-05-15 18:54:52 +0200 (ven., 15 mai 2009) | 3 lines

  Issue #2116: Weak references and weak dictionaries now support copy()ing and deepcopy()ing.
........
2009-05-15 17:04:50 +00:00
Mark Dickinson a56c467ac3 Issue #1717: Remove cmp. Stage 1: remove all uses of cmp and __cmp__ from
the standard library and tests.
2009-01-27 18:17:45 +00:00
Benjamin Peterson ee8712cda4 #2621 rename test.test_support to test.support 2008-05-20 21:35:26 +00:00
Alexandre Vassalotti f7fa63dd55 Rename copy_reg module to copyreg.
Updated documentation.
Merged revisions 63042 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk

........
  r63042 | alexandre.vassalotti | 2008-05-11 04:25:28 -0400 (Sun, 11 May 2008) | 5 lines

  Added module stub for copy_reg renaming in 3.0.
  Renamed copy_reg to copyreg in the standard library, to avoid
  spurious warnings and ease later merging to py3k branch. Public
  documentation remains intact.
........
2008-05-11 08:55:36 +00:00
Christian Heimes 05e8be17fd Merged revisions 60990-61002 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk

........
  r60990 | eric.smith | 2008-02-23 17:05:26 +0100 (Sat, 23 Feb 2008) | 1 line

  Removed duplicate Py_CHARMASK define.  It's already defined in Python.h.
........
  r60991 | andrew.kuchling | 2008-02-23 17:23:05 +0100 (Sat, 23 Feb 2008) | 4 lines

  #1330538: Improve comparison of xmlrpclib.DateTime and datetime instances.
  Remove automatic handling of datetime.date and datetime.time.
  This breaks backward compatibility, but python-dev discussion was strongly
  against this automatic conversion; see the bug for a link.
........
  r60994 | andrew.kuchling | 2008-02-23 17:39:43 +0100 (Sat, 23 Feb 2008) | 1 line

  #835521: Add index entries for various pickle-protocol methods and attributes
........
  r60995 | andrew.kuchling | 2008-02-23 18:10:46 +0100 (Sat, 23 Feb 2008) | 2 lines

  #1433694: minidom's .normalize() failed to set .nextSibling for last element.
  Fix by Malte Helmert
........
  r61000 | christian.heimes | 2008-02-23 18:40:11 +0100 (Sat, 23 Feb 2008) | 1 line

  Patch #2167 from calvin: Remove unused imports
........
  r61001 | christian.heimes | 2008-02-23 18:42:31 +0100 (Sat, 23 Feb 2008) | 1 line

  Patch #1957: syslogmodule: Release GIL when calling syslog(3)
........
  r61002 | christian.heimes | 2008-02-23 18:52:07 +0100 (Sat, 23 Feb 2008) | 2 lines

  Issue #2051 and patch from Alexander Belopolsky:
  Permission for pyc and pyo files are inherited from the py file.
........
2008-02-23 18:30:17 +00:00
Collin Winter 3add4d78ff Raise statement normalization in Lib/test/. 2007-08-29 23:37:32 +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
Guido van Rossum 52cc1d838f Implement PEP 3115 -- new metaclass syntax and semantics.
The compiler package hasn't been updated yet; test_compiler.py fails.
Otherwise all tests seem to be passing now.  There are no occurrences
of __metaclass__ left in the standard library.
Docs have not been updated.
2007-03-18 15:41:51 +00:00
Neal Norwitz 221085de89 Change all the function attributes from func_* -> __*__. This gets rid
of func_name, func_dict and func_doc as they already exist as __name__,
__dict__ and __doc__.
2007-02-25 20:55:47 +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
Guido van Rossum e2a383d062 Rip out 'long' and 'L'-suffixed integer literals.
(Rough first cut.)
2007-01-15 16:59:06 +00:00
Guido van Rossum 47b9ff6ba1 Restructure comparison dramatically. There is no longer a default
*ordering* between objects; there is only a default equality test
(defined by an object being equal to itself only).  Read the comment
in object.c.  The current implementation never uses a three-way
comparison to compute a rich comparison, but it does use a rich
comparison to compute a three-way comparison.  I'm not quite done
ripping out all the calls to PyObject_Compare/Cmp, or replacing
tp_compare implementations with tp_richcompare implementations;
but much of that has happened (to make most unit tests pass).

The following tests still fail, because I need help deciding
or understanding:

test_codeop -- depends on comparing code objects
test_datetime -- need Tim Peters' opinion
test_marshal -- depends on comparing code objects
test_mutants -- need help understanding it

The problem with test_codeop and test_marshal is this: these tests
compare two different code objects and expect them to be equal.
Is that still a feature we'd like to support?  I've temporarily
removed the comparison and hash code from code objects, so they
use the default (equality by pointer only) comparison.

For the other two tests, run them to see for yourself.
(There may be more failing test with "-u all".)

A general problem with getting lots of these tests to pass is
the reality that for object types that have a natural total ordering,
implementing __cmp__ is much more convenient than implementing
__eq__, __ne__, __lt__, and so on.  Should we go back to allowing
__cmp__ to provide a total ordering?  Should we provide some other
way to implement rich comparison with a single method override?
Alex proposed a __key__() method; I've considered a __richcmp__()
method.  Or perhaps __cmp__() just shouldn't be killed off...
2006-08-24 00:41:19 +00:00
Guido van Rossum 1968ad32cd - Patch 1433928:
- The copy module now "copies" function objects (as atomic objects).
  - dict.__getitem__ now looks for a __missing__ hook before raising
    KeyError.
  - Added a new type, defaultdict, to the collections module.
    This uses the new __missing__ hook behavior added to dict (see above).
2006-02-25 22:38:04 +00:00
Walter Dörwald 70a6b49821 Replace backticks with repr() or "%r"
From SF patch #852334.
2004-02-12 17:35:32 +00:00
Armin Rigo 2b3eb4062c Deleting cyclic object comparison.
SF patch 825639
http://mail.python.org/pipermail/python-dev/2003-October/039445.html
2003-10-28 12:05:48 +00:00
Martin v. Löwis ba8f5ff76c Copy builtin functions as atomic. Fixes #746304. Will backport to 2.2. 2003-06-14 07:10:06 +00:00
Guido van Rossum 99d2c251df SF patch 707900, fixing bug 702858, by Steven Taschuk.
Copying a new-style class that had a reference to itself didn't work.
(The same thing worked fine for old-style classes.)
2003-06-13 19:28:47 +00:00
Neal Norwitz e2fdc61004 Fix SF #749831, copy raises SystemError when getstate raises exception 2003-06-08 13:19:58 +00:00
Walter Dörwald 21d3a32b99 Combine the functionality of test_support.run_unittest()
and test_support.run_classtests() into run_unittest()
and use it wherever possible.

Also don't use "from test.test_support import ...", but
"from test import test_support" in a few spots.

From SF patch #662807.
2003-05-01 17:45:56 +00:00
Guido van Rossum e690883ccf Use __reduce_ex__ in copy.py. The test_*copy_cant() tests are simpler again. 2003-02-19 01:19:28 +00:00
Guido van Rossum 1dca482dbd Somehow, copy() of a classic class object was handled
atomically, but deepcopy() didn't support this at all.
I don't see any reason for this, so I'm adding ClassType
to the set of types that are deep-copied atomically.
2003-02-07 17:53:23 +00:00
Guido van Rossum c06e3acc73 Add support for copy_reg.dispatch_table.
Rewrote copy() and deepcopy() without avoidable try/except statements;
getattr(x, name, None) or dict.get() are much faster than try/except.
2003-02-07 17:30:18 +00:00
Guido van Rossum 85233bf746 Fix a bug in the way __getnewargs__ was handled. 2003-02-06 21:25:12 +00:00
Guido van Rossum c755758906 Support all the new stuff supported by the new pickle code:
- subclasses of list or dict
- __reduce__ returning a 4-tuple or 5-tuple
- slots
2003-02-06 19:53:22 +00:00
Guido van Rossum 90e05b0e25 Support __reduce__ returning a 4-tuple or 5-tuple. 2003-02-06 18:18:23 +00:00
Guido van Rossum 581cb938d0 A test suite for the copy module. This should provide full code
coverage.
2003-02-06 17:52:15 +00:00