Commit Graph

412 Commits

Author SHA1 Message Date
Jeffrey Yasskin 9871d8fe22 Continue rolling back pep-3141 changes that changed behavior from 2.5. This
round included:
 * Revert round to its 2.6 behavior (half away from 0).
 * Because round, floor, and ceil always return float again, it's no
   longer necessary to have them delegate to __xxx___, so I've ripped
   that out of their implementations and the Real ABC. This also helps
   in implementing types that work in both 2.6 and 3.0: you return int
   from the __xxx__ methods, and let it get enabled by the version
   upgrade.
 * Make pow(-1, .5) raise a ValueError again.
2008-01-05 08:47:13 +00:00
Jeffrey Yasskin 2f3c16be73 Backport PEP 3141 from the py3k branch to the trunk. This includes r50877 (just
the complex_pow part), r56649, r56652, r56715, r57296, r57302, r57359, r57361,
r57372, r57738, r57739, r58017, r58039, r58040, and r59390, and new
documentation. The only significant difference is that round(x) returns a float
to preserve backward-compatibility. See http://bugs.python.org/issue1689.
2008-01-03 02:21:52 +00:00
Guido van Rossum 01dbc109a8 Improve performance of built-in any()/all() by avoiding PyIter_Next() --
using a trick found in ifilter().
Feel free to backport to 2.5.
2007-12-20 23:48:28 +00:00
Skip Montanaro 4e3ebe0bae Note that open() is the preferred way to open files (issue 1510). 2007-12-08 14:37:43 +00:00
Raymond Hettinger 4e2f714031 Fix Issue 1045.
Factor-out common calling code by simplifying the length_hint API.
Speed-up the function by caching the PyObject_String for the attribute lookup.
2007-12-06 00:56:53 +00:00
Raymond Hettinger a45c4873fc Missing DECREFs 2007-10-25 02:26:58 +00:00
Raymond Hettinger 3a8daf5b56 Fixup error return and add support for intermixed ints and floats/ 2007-10-24 02:05:51 +00:00
Raymond Hettinger 3f8caa3ba7 Optimize sum() for integer and float inputs. 2007-10-24 01:28:33 +00:00
Neal Norwitz df25efeae9 Add a bunch more deprecation warnings for builtins that are going away in 3.0 2007-05-23 06:58:36 +00:00
Neal Norwitz 8b2bfbc198 Add -3 option to the interpreter to warn about features that are
deprecated and will be changed/removed in Python 3.0.

This patch is mostly from Anthony.  I tweaked some format and added
a little doc.
2007-05-23 06:35:32 +00:00
Georg Brandl 5240d7416c Patch #1444529: the builtin compile() now accepts keyword arguments.
(backport)
2007-03-13 20:46:32 +00:00
Georg Brandl 3bb156722e Typo and grammar fixes. 2007-03-13 07:23:16 +00:00
Georg Brandl 871f1bc601 Backport from Py3k branch:
Patch #1591665: implement the __dir__() special function lookup in PyObject_Dir.

Had to change a few bits of the patch because classobjs and __methods__ are still
in Py2.6.
2007-03-12 13:17:36 +00:00
Georg Brandl 8134d06e08 Bug #1283491: follow docstring convention wrt. keyword-able args in sum(). 2006-10-12 12:33:07 +00:00
Neal Norwitz 477ca1c953 Fix SF #1552093, eval docstring typo (3 ps in mapping) 2006-09-05 02:25:41 +00:00
Neal Norwitz 43bd4db933 It's highly unlikely, though possible for PyEval_Get*() to return NULLs.
So be safe and do an XINCREF.

Klocwork # 221-222.
2006-08-12 01:46:42 +00:00
Georg Brandl 7e3ba2a699 Bug #1535165: fixed a segfault in input() and raw_input() when
sys.stdin is closed.
2006-08-06 08:23:54 +00:00
Neal Norwitz c4edb0ec81 SF #1479181: split open() and file() from being aliases for each other. 2006-05-02 04:43:14 +00:00
Martin v. Löwis b1ed7fac12 Replace INT_MAX with PY_SSIZE_T_MAX. 2006-04-13 07:52:27 +00:00
Neal Norwitz 92e212f7d9 Accept keyword arguments for __import__ and doc the addition of the level param from PEP 328. 2006-04-03 04:48:37 +00:00
Georg Brandl ccadf84a1b Patch #1460496: round() now accepts keyword arguments. 2006-03-31 18:54:53 +00:00
Martin v. Löwis 725507b52e Change int to Py_ssize_t in several places.
Add (int) casts to silence compiler warnings.
Raise Python exceptions for overflows.
2006-03-07 12:08:51 +00:00
Thomas Wouters f7f438ba3b SF patch #1438387, PEP 328: relative and absolute imports.
- IMPORT_NAME takes an extra argument from the stack: the relativeness of
   the import. Only passed to __import__ when it's not -1.

 - __import__() takes an optional 5th argument for the same thing; it
   __defaults to -1 (old semantics: try relative, then absolute)

 - 'from . import name' imports name (be it module or regular attribute)
   from the current module's *package*. Likewise, 'from .module import name'
   will import name from a sibling to the current module.

 - Importing from outside a package is not allowed; 'from . import sys' in a
   toplevel module will not work, nor will 'from .. import sys' in a
   (single-level) package.

 - 'from __future__ import absolute_import' will turn on the new semantics
   for import and from-import: imports will be absolute, except for
   from-import with dots.

Includes tests for regular imports and importhooks, parser changes and a
NEWS item, but no compiler-package changes or documentation changes.
2006-02-28 16:09:29 +00:00
Martin v. Löwis 15e62742fa Revert backwards-incompatible const changes. 2006-02-27 16:46:16 +00:00
Martin v. Löwis bd260da900 Generate code to recursively copy an AST into
a tree of Python objects. Expose this through compile().
2006-02-26 19:42:26 +00:00
Neal Norwitz a361bd8dce Fix compiler warning (int vs Py_ssize_t mismatch 2006-02-19 19:31:50 +00:00
Martin v. Löwis d96ee90993 Use Py_ssize_t to count the 2006-02-16 14:37:16 +00:00
Martin v. Löwis 18e165558b Merge ssize_t branch. 2006-02-15 17:27:45 +00:00
Armin Rigo f5b3e36493 Renamed _length_cue() to __length_hint__(). See:
http://mail.python.org/pipermail/python-dev/2006-February/060524.html
2006-02-11 21:32:43 +00:00
Neal Norwitz 6f0d479c78 Fix an int/long mismatch identified here:
http://www.tortall.net/mu/blog/2005/12/01

Pointed out from SF #1365916.

Backport candidate.
2005-12-15 06:40:36 +00:00
Jeremy Hylton af68c874a6 Add const to several API functions that take char *.
In C++, it's an error to pass a string literal to a char* function
without a const_cast().  Rather than require every C++ extension
module to put a cast around string literals, fix the API to state the
const-ness.

I focused on parts of the API where people usually pass literals:
PyArg_ParseTuple() and friends, Py_BuildValue(), PyMethodDef, the type
slots, etc.  Predictably, there were a large set of functions that
needed to be fixed as a result of these changes.  The most pervasive
change was to make the keyword args list passed to
PyArg_ParseTupleAndKewords() to be a const char *kwlist[].

One cast was required as a result of the changes:  A type object
mallocs the memory for its tp_doc slot and later frees it.
PyTypeObject says that tp_doc is const char *; but if the type was
created by type_new(), we know it is safe to cast to char *.
2005-12-10 18:50:16 +00:00
Neal Norwitz 3a9a3e7864 Fix memory leaks 2005-11-27 20:38:31 +00:00
Jeremy Hylton ec97a28b60 Fix a bunch of imports to use code.h instead of compile.h.
Remove duplicate declarations from compile.h
2005-10-21 14:58:06 +00:00
Jeremy Hylton 3e0055f8c6 Merge ast-branch to head
This change implements a new bytecode compiler, based on a
transformation of the parse tree to an abstract syntax defined in
Parser/Python.asdl.

The compiler implementation is not complete, but it is in stable
enough shape to run the entire test suite excepting two disabled
tests.
2005-10-20 19:59:25 +00:00
Raymond Hettinger 6b27cda643 Convert iterator __len__() methods to a private API. 2005-09-24 21:23:05 +00:00
Armin Rigo 71d7e704b8 Removed a check "if (args != NULL)" which is always True and makes no sense. 2005-09-20 18:13:03 +00:00
Georg Brandl 77c85e63b4 bug [ 868706 ] Calling builtin function 'eval' from C causes seg fault. 2005-09-15 10:46:13 +00:00
Georg Brandl 99d7e4e8eb Whitespace normalization. 2005-08-31 22:21:15 +00:00
Raymond Hettinger a710b331da SF bug #1242657: list(obj) can swallow KeyboardInterrupt
Fix over-aggressive PyErr_Clear().  The same code fragment appears in
various guises in list.extend(), map(), filter(), zip(), and internally
in PySequence_Tuple().
2005-08-21 11:03:59 +00:00
Georg Brandl e35b657efd Fix cleanup DECREF logic in builtin_filter function. 2005-07-19 22:20:20 +00:00
Raymond Hettinger 96229b1918 Add two new functions, any() and all(). 2005-03-11 06:49:40 +00:00
Brett Cannon 9e635cf3ae Put parentheses around the assignment in the 'while' loop conditional
expression in min_max() to shut gcc up.
2004-12-07 00:25:35 +00:00
Raymond Hettinger 3b0c7c20a1 SF patch #1077353: add key= argument to min and max
(First draft of patch contributed by Steven Bethard.)
2004-12-03 08:30:39 +00:00
Martin v. Löwis 8d494f3241 Patch #1015021: Stop claiming that coerce can return None.
Will backport to 2.3.
2004-08-25 10:42:41 +00:00
Martin v. Löwis fd39ad4937 Patch #1005468: Disambiguate "min() or max()" exception string. 2004-08-12 14:42:37 +00:00
Jeremy Hylton 4c989ddc9c Subclasses of string can no longer be interned. The semantics of
interning were not clear here -- a subclass could be mutable, for
example -- and had bugs.  Explicitly interning a subclass of string
via intern() will raise a TypeError.  Internal operations that attempt
to intern a string subclass will have no effect.

Added a few tests to test_builtin that includes the old buggy code and
verifies that calls like PyObject_SetAttr() don't fail.  Perhaps these
tests should have gone in test_string.
2004-08-07 19:20:05 +00:00
Michael W. Hudson 52db519faa for some reason, the lack of adherence to Python's C whitespace rules
must have annoyed me at some point.
2004-08-02 13:21:09 +00:00
Raymond Hettinger 66bd233225 Completed the patch for Bug #215126.
* Fixes an incorrect variable in a PyDict_CheckExact.
* Allow general mapping locals arguments for the execfile() function
  and exec statement.
* Add tests.
2004-08-02 08:30:07 +00:00
Neil Schemenauer 3a313e3655 Check the type of values returned by __int__, __float__, __long__,
__oct__, and __hex__.  Raise TypeError if an invalid type is
returned.  Note that PyNumber_Int and PyNumber_Long can still
return ints or longs.  Fixes SF bug #966618.
2004-07-19 16:29:17 +00:00
Michael W. Hudson 30ea2f223f This closes patch:
[ 960406 ] unblock signals in threads

although the changes do not correspond exactly to any patch attached to
that report.

Non-main threads no longer have all signals masked.

A different interface to readline is used.

The handling of signals inside calls to PyOS_Readline is now rather
different.

These changes are all a bit scary!  Review and cross-platform testing
much appreciated.
2004-07-07 17:44:12 +00:00
Raymond Hettinger 513ffe8112 * Fix missing return after error message is set.
* Add a test case that would have caught it.
2004-07-06 13:44:41 +00:00
Raymond Hettinger 214b1c3aae SF Bug #215126: Over restricted type checking on eval() function
The builtin eval() function now accepts any mapping for the locals argument.
Time sensitive steps guarded by PyDict_CheckExact() to keep from slowing
down the normal case.  My timings so no measurable impact.
2004-07-02 06:41:07 +00:00
Andrew MacIntyre da4d6cb573 OS/2 VACPP build updates/fixes 2004-03-29 11:53:38 +00:00
Hye-Shik Chang ff83c2bacc Fix input() builtin function to respect compiler flags.
(SF patch 876178, patch by mwh, unittest by perky)
2004-02-02 13:39:01 +00:00
Raymond Hettinger b86269db45 Apply pre-sizing optimization to a broader class of objects.
Formerly, the length was only fetched from sequence objects.
Now, any object that reports its length can benefit from pre-sizing.
2004-01-04 11:00:08 +00:00
Raymond Hettinger 77f3c87113 Apply map/zip pre-sizing optimization to a broader class of objects.
Formerly, the length was only fetched from sequence objects.
Now, any object that reports its length can benefit from pre-sizing.
2004-01-04 08:54:44 +00:00
Raymond Hettinger 64958a15d7 Guido grants a Christmas wish:
sorted() becomes a regular function instead of a classmethod.
2003-12-17 20:43:33 +00:00
Fred Drake d75ede3238 Remove the PendingDeprecationWarning from apply(). apply() will
remain deprecated in the documentation.
2003-12-05 17:34:27 +00:00
Raymond Hettinger a690a9967e * Migrate set() and frozenset() from the sandbox.
* Install the unittests, docs, newsitem, include file, and makefile update.
* Exercise the new functions whereever sets.py was being used.

Includes the docs for libfuncs.tex.  Separate docs for the types are
forthcoming.
2003-11-16 16:17:49 +00:00
Raymond Hettinger 85c20a41df Implement and apply PEP 322, reverse iteration 2003-11-06 14:06:48 +00:00
Alex Martelli a253e183b8 regressing the performance bugfix -- Guido wants the performance bug left
alone, because there can be no guarantee re the semantics of += vs + .
2003-10-25 23:24:14 +00:00
Alex Martelli a2777d3a55 Changed builtin_sum to use PyNumber_InPlaceAdd (same semantics, but fixes
a performance bug in sum(manylists)), same as in 2.3 maintenance branch.
2003-10-25 12:49:56 +00:00
Raymond Hettinger 5cf6394b12 Use PyArg_UnpackTuple() where possible. 2003-10-25 06:41:37 +00:00
Raymond Hettinger 8ae4689657 Simplify and speedup uses of Py_BuildValue():
* Py_BuildValue("(OOO)",a,b,c)  -->  PyTuple_Pack(3,a,b,c)
* Py_BuildValue("()",a)         -->  PyTuple_New(0)
* Py_BuildValue("O", a)         -->  Py_INCREF(a)
2003-10-12 19:09:37 +00:00
Jeremy Hylton 364f6becad Correct check of PyUnicode_Resize() return value. 2003-09-16 03:17:16 +00:00
Jeremy Hylton 1aad9c7dad Reflow long lines and reformat. 2003-09-16 03:10:59 +00:00
Walter Dörwald c58a3a10a9 Fix a crash: when sq_item failed the code continued blindly and used the
NULL pointer. (Detected by Michael Hudson, patch provided by Neal Norwitz).

Fix refcounting leak in filtertuple().
2003-08-18 18:28:45 +00:00
Neil Schemenauer 689735562d Make filter(bool, ...) as fast as filter(None, ...). 2003-08-14 20:37:34 +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
Alex Martelli a9b9c9fa9f some more error-message enhancements 2003-04-23 13:34:35 +00:00
Alex Martelli f471d4783a complete and clarify some error messages for range() 2003-04-23 13:00:44 +00:00
Alex Martelli 41c9f880d8 fixed a potential refcount bug (thanks Raymond!). 2003-04-22 09:24:48 +00:00
Alex Martelli a70b19147f Adding new built-in function sum, with docs and tests. 2003-04-22 08:12:33 +00:00
Guido van Rossum 28e83e3a66 Some errors from range() should be TypeError, not ValueError. 2003-04-15 12:43:26 +00:00
Guido van Rossum 817d6c9c9e Prompted by Tim's comment, when handle_range_longs() sees an
unexpected type, report the actual type rather than 'float'.  (It's
hard to even reach this code with a float. :-)
2003-04-14 18:25:04 +00:00
Tim Peters 874e1f7ed3 handle_range_longs(): refcount handling is very delicate here, and
the code erroneously decrefed the istep argument in an error case.  This
caused a co_consts tuple to lose a float constant prematurely, which
eventually caused gc to try executing static data in floatobject.c (don't
ask <wink>).  So reworked this extensively to ensure refcount correctness.
2003-04-13 22:13:08 +00:00
Guido van Rossum efbbb1c602 Patch by Chad Netzer (with significant change):
- range() now works even if the arguments are longs with magnitude
  larger than sys.maxint, as long as the total length of the sequence
  fits.  E.g., range(2**100, 2**101, 2**100) is the following list:
  [1267650600228229401496703205376L].  (SF patch #707427.)
2003-04-11 18:43:06 +00:00
Raymond Hettinger ff41c48a77 SF patch #701494: more apply removals 2003-04-06 09:01:11 +00:00
Tim Peters 7571a0fbcf Improved new Py_TRACE_REFS gimmicks.
Arranged that all the objects exposed by __builtin__ appear in the list
of all objects.  I basically peed away two days tracking down a mystery
leak in sys.gettotalrefcount() in a ZODB app (== tons of code), because
the object leaking the references didn't appear in the sys.getobjects(0)
list.  The object happened to be False.  Now False is in the list, along
with other popular & previously missing leak candidates (like None).
Alas, we still don't have a choke point covering *all* Python objects,
so the list of all objects may still be incomplete.
2003-03-23 17:52:28 +00:00
Neal Norwitz 3e59076b1d Fix SF bug #690435, apply fails to check if warning raises exception
(patch provided by Greg Chapman)
2003-02-23 21:45:43 +00:00
Guido van Rossum 4b499dd3fb - Finally fixed the bug in compile() and exec where a string ending
with an indented code block but no newline would raise SyntaxError.
  This would have been a four-line change in parsetok.c...  Except
  codeop.py depends on this behavior, so a compilation flag had to be
  invented that causes the tokenizer to revert to the old behavior;
  this required extra changes to 2 .h files, 2 .c files, and 2 .py
  files.  (Fixes SF bug #501622.)
2003-02-13 22:07:59 +00:00
Walter Dörwald 8dd19321bb Change filtertuple() to use tp_as_sequence->sq_item
instead of PyTuple_GetItem, so an overwritten __getitem__
in a tuple subclass works. SF bug #665835.
2003-02-10 17:36:40 +00:00
Tim Peters 2c646c9fc1 Squashed compiler wng about signed/unsigned clash in comparison. 2003-02-10 14:48:29 +00:00
Walter Dörwald 1918f7755e Change filterstring() and filterunicode(): If the
object is not a real str or unicode but an instance
of a subclass, construct the output via looping
over __getitem__. This guarantees that the result
is the same for function==None and function==lambda x:x

This doesn't happen for tuples, because filtertuple()
uses PyTuple_GetItem().

(This was discussed on SF bug #665835).
2003-02-10 13:19:13 +00:00
Just van Rossum b9b8e9cf6d My previous checkin caused compile() to no longer accept buffers, as noted
my MAL. Fixed. (Btw. eval() still doesn't take buffers, but that was so
even before my patch.)
2003-02-10 09:22:01 +00:00
Just van Rossum 3aaf42c613 patch #683515: "Add unicode support to compile(), eval() and exec"
Incorporated nnorwitz's comment re. Py__USING_UNICODE.
2003-02-10 08:21:10 +00:00
Walter Dörwald c3da83fcd7 Make sure filter() never returns tuple, str or unicode
subclasses. (Discussed in SF patch #665835)
2003-02-04 20:24:45 +00:00
Walter Dörwald 531e000d2e PyUnicode_Resize() doesn't free its argument in case of a failure,
so we can jump to the error handling code that does.
(Spotted by Neal Norwitz)
2003-02-04 16:57:49 +00:00
Walter Dörwald 903f1e0c40 filterstring() and filterunicode() in Python/bltinmodule.c
blindly assumed that tp_as_sequence->sq_item always returns
a str or unicode object. This might fail with str or unicode
subclasses.

This patch checks whether the object returned from __getitem__
is a str/unicode object and raises a TypeError if not (and
the filter function returned true).

Furthermore the result for __getitem__ can be more than one
character long, so checks for enough memory have to be done.
2003-02-04 16:28:00 +00:00
Neal Norwitz 94c30c0124 SF #661437, apply() should get PendingDeprecation 2003-02-03 20:23:33 +00:00
Martin v. Löwis 8afd7571a1 Patch #636005: Filter unicode into unicode. 2003-01-25 22:46:11 +00:00
Raymond Hettinger 69bf8f3f4e SF bug #655271: Slightly modify locals() doc
Clarify the operation of locals().
2003-01-04 02:16:22 +00:00
Raymond Hettinger bbfb910416 Make error message more specific for min() and max().
Suggested by MvL.
2002-12-29 18:31:19 +00:00
Raymond Hettinger ea3fdf44a2 SF patch #659536: Use PyArg_UnpackTuple where possible.
Obtain cleaner coding and a system wide
performance boost by using the fast, pre-parsed
PyArg_Unpack function instead of PyArg_ParseTuple
function which is driven by a format string.
2002-12-29 16:33:45 +00:00
Walter Dörwald d9a6ad3beb Enhance issubclass() and PyObject_IsSubclass() so that a tuple is
supported as the second argument. This has the same meaning as
for isinstance(), i.e. issubclass(X, (A, B)) is equivalent
to issubclass(X, A) or issubclass(X, B). Compared to isinstance(),
this patch does not search the tuple recursively for classes, i.e.
any entry in the tuple that is not a class, will result in a
TypeError.

This closes SF patch #649608.
2002-12-12 16:41:44 +00:00
Martin v. Löwis 566f6afe9a Patch #512981: Update readline input stream on sys.stdin/out change. 2002-10-26 14:39:10 +00:00
Peter Schneider-Kamp 4c0134248c execfile should call PyErr_SetFromErrnoWithFilename instead of
simply PyErr_SetFromErrno

This closes bug 599163.
2002-08-27 16:58:00 +00:00
Guido van Rossum c7903a13d2 A nice little speed-up for filter():
- Use PyObject_Call() instead of PyEval_CallObject(), saves several
  layers of calls and checks.

- Pre-allocate the argument tuple rather than calling Py_BuildValue()
  each time round the loop.

- For filter(None, seq), avoid an INCREF and a DECREF.
2002-08-16 07:04:56 +00:00
Martin v. Löwis 31d2df5b60 Patch #550192: Set softspace to 0 in raw_input(). 2002-08-14 15:46:02 +00:00
Marc-André Lemburg cc8764ca9d Add C API PyUnicode_FromOrdinal() which exposes unichr() at C level.
u'%c' will now raise a ValueError in case the argument is an
integer outside the valid range of Unicode code point ordinals.

Closes SF bug #593581.
2002-08-11 12:23:04 +00:00