Commit Graph

382 Commits

Author SHA1 Message Date
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
Martin v. Löwis 6238d2b024 Patch #569753: Remove support for WIN16.
Rename all occurrences of MS_WIN32 to MS_WINDOWS.
2002-06-30 15:26:10 +00:00
Guido van Rossum bea18ccde6 SF patch 568629 by Oren Tirosh: types made callable.
These built-in functions are replaced by their (now callable) type:

    slice()
    buffer()

and these types can also be called (but have no built-in named
function named after them)

    classobj (type name used to be "class")
    code
    function
    instance
    instancemethod (type name used to be "instance method")

The module "new" has been replaced with a small backward compatibility
placeholder in Python.

A large portion of the patch simply removes the new module from
various platform-specific build recipes.  The following binary Mac
project files still have references to it:

    Mac/Build/PythonCore.mcp
    Mac/Build/PythonStandSmall.mcp
    Mac/Build/PythonStandalone.mcp

[I've tweaked the code layout and the doc strings here and there, and
added a comment to types.py about StringTypes vs. basestring.  --Guido]
2002-06-14 20:41:17 +00:00
Martin v. Löwis 14f8b4cfcb Patch #568124: Add doc string macros. 2002-06-13 20:33:02 +00:00
Raymond Hettinger c4c453f5ae Skip Montanaro's patch, SF 559833, exposing xrange type in builtins.
Also, added more regression tests to cover the new type and test its
conformity with range().
2002-06-05 23:12:45 +00:00
Neal Norwitz 32a7e7f6b6 Change name from string to basestring 2002-05-31 19:58:02 +00:00
Guido van Rossum cacfc07d08 - A new type object, 'string', is added. This is a common base type
for 'str' and 'unicode', and can be used instead of
  types.StringTypes, e.g. to test whether something is "a string":
  isinstance(x, string) is True for Unicode and 8-bit strings.  This
  is an abstract base class and cannot be instantiated directly.
2002-05-24 19:01:59 +00:00
Tim Peters 39a86c2188 SF bug 555042: zip() may trigger MemoryError.
NOT a bugfix candidate:  this is a fix to an optimization introduced
in 2.3.
2002-05-12 07:19:38 +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
Tim Peters 5de9842b34 Repair widespread misuse of _PyString_Resize. Since it's clear people
don't understand how this function works, also beefed up the docs.  The
most common usage error is of this form (often spread out across gotos):

	if (_PyString_Resize(&s, n) < 0) {
		Py_DECREF(s);
		s = NULL;
		goto outtahere;
	}

The error is that if _PyString_Resize runs out of memory, it automatically
decrefs the input string object s (which also deallocates it, since its
refcount must be 1 upon entry), and sets s to NULL.  So if the "if"
branch ever triggers, it's an error to call Py_DECREF(s):  s is already
NULL!  A correct way to write the above is the simpler (and intended)

	if (_PyString_Resize(&s, n) < 0)
		goto outtahere;

Bugfix candidate.
2002-04-27 18:44:32 +00:00
Guido van Rossum 7dab2426ca - New builtin function enumerate(x), from PEP 279. Example:
enumerate("abc") is an iterator returning (0,"a"), (1,"b"), (2,"c").
  The argument can be an arbitrary iterable object.
2002-04-26 19:40:56 +00:00
Jack Jansen 7b8c7546eb Mass checkin of universal newline support.
Highlights: import and friends will understand any of \r, \n and \r\n
as end of line. Python file input will do the same if you use mode 'U'.
Everything can be disabled by configuring with --without-universal-newlines.

See PEP278 for details.
2002-04-14 20:12:41 +00:00
Guido van Rossum 77f6a65eb0 Add the 'bool' type and its values 'False' and 'True', as described in
PEP 285.  Everything described in the PEP is here, and there is even
some documentation.  I had to fix 12 unit tests; all but one of these
were printing Boolean outcomes that changed from 0/1 to False/True.
(The exception is test_unicode.py, which did a type(x) == type(y)
style comparison.  I could've fixed that with a single line using
issubtype(x, type(y)), but instead chose to be explicit about those
places where a bool is expected.

Still to do: perhaps more documentation; change standard library
modules to return False/True from predicates.
2002-04-03 22:41:51 +00:00
Martin v. Löwis 3484a18af1 Patch #494045: patches errno and stat to cope on plan9. 2002-03-09 12:07:51 +00:00
Tim Peters d50e544b9f Docstring for filter(): Someone on the Tutor list reasonably complained
that it didn't tell enough of the truth.
Bugfix candidate (I guess -- it helps and it's harmless).
2002-03-09 00:06:26 +00:00
Martin v. Löwis cdc4451222 Include <unistd.h> in Python.h. Fixes #500924. 2002-01-12 11:05:12 +00:00
Jeremy Hylton 733c8935f9 Fix for SF bug [ #492403 ] exec() segfaults on closure's func_code
Based on the patch from Danny Yoo.  The fix is in exec_statement() in
ceval.c.

There are also changes to introduce use of PyCode_GetNumFree() in
several places.
2001-12-13 19:51:56 +00:00
Jeremy Hylton 518ab1c02a Use PyOS_snprintf instead of sprintf. 2001-11-28 20:42:20 +00:00
Tim Peters 603c6831d0 SF patch 473749 compile under OS/2 VA C++, from Michael Muller.
Changes enabling Python to compile under OS/2 Visual Age C++.
2001-11-05 02:45:59 +00:00
Tim Peters a427a2b8d0 Rename "dictionary" (type and constructor) to "dict". 2001-10-29 22:25:45 +00:00
Guido van Rossum e2ae77b8b8 SF patch #474590 -- RISC OS support 2001-10-24 20:42:55 +00:00
Guido van Rossum d892357bf7 SF patch #471852 (anonymous) notes that getattr(obj, name, default)
masks any exception, not just AttributeError.  Fix this.
2001-10-16 21:31:32 +00:00
Guido van Rossum 03290ecbf1 Implement isinstance(x, (A, B, ...)). Note that we only allow tuples,
not other sequences (then we'd have to except strings, and we'd still
be susceptible to recursive attacks).
2001-10-07 20:54:12 +00:00
Tim Peters 742dfd6f17 Get rid of builtin_open() entirely (the C code and docstring, not the
builtin function); Guido pointed out that it could be just another
name in the __builtin__ dict for the file constructor now.
2001-09-13 21:49:44 +00:00
Tim Peters 4b7625ee83 _PyBuiltin_Init(): For clarity, macroize this purely repetitive code. 2001-09-13 21:37:17 +00:00
Tim Peters 59c9a645e2 SF bug [#460467] file objects should be subclassable.
Preliminary support.  What's here works, but needs fine-tuning.
2001-09-13 05:38:56 +00:00
Guido van Rossum 8bce4acb17 Rename 'getset' to 'property'. 2001-09-06 21:56:42 +00:00
Guido van Rossum b3a639ed7d builtin_execfile(): initialize another local that the GCC on leroy
found it necessary to warn about.
2001-09-05 13:37:47 +00:00
Tim Peters 7eea37e831 At Guido's suggestion, here's a new C API function, PyObject_Dir(), like
__builtin__.dir().  Moved the guts from bltinmodule.c to object.c.
2001-09-04 22:08:56 +00:00
Tim Peters 37a309db70 builtin_dir(): Treat classic classes like types. Use PyDict_Keys instead
of PyMapping_Keys because we know we have a real dict.  Tolerate that
objects may have an attr named "__dict__" that's not a dict (Py_None
popped up during testing).

test_descr.py, test_dir():  Test the new classic-class behavior; beef up
the new-style class test similarly.

test_pyclbr.py, checkModule():  dir(C) is no longer a synonym for
C.__dict__.keys() when C is a classic class (looks like the same thing
that burned distutils! -- should it be *made* a synoym again?  Then it
would be inconsistent with new-style class behavior.).
2001-09-04 01:20:04 +00:00
Tim Peters 5d2b77cf31 Make dir() wordier (see the new docstring). The new behavior is a mixed
bag.  It's clearly wrong for classic classes, at heart because a classic
class doesn't have a __class__ attribute, and I'm unclear on whether
that's feature or bug.  I'll repair this once I find out (in the
meantime, dir() applied to classic classes won't find the base classes,
while dir() applied to a classic-class instance *will* find the base
classes but not *their* base classes).

Please give the new dir() a try and see whether you love it or hate it.
The new dir([]) behavior is something I could come to love.  Here's
something to hate:

>>> class C:
...     pass
...
>>> c = C()
>>> dir(c)
['__doc__', '__module__']
>>>

The idea that an instance has a __doc__ attribute is jarring (of course
it's really c.__class__.__doc__ == C.__doc__; likewise for __module__).

OTOH, the code already has too many special cases, and dir(x) doesn't
have a compelling or clear purpose when x isn't a module.
2001-09-03 05:47:38 +00:00