Commit Graph

62 Commits

Author SHA1 Message Date
Brett Cannon 409d8f2ebd Allow classes to be defined with empty parentheses. This means that
``class C(): pass`` is no longer a syntax error.
2005-03-05 06:47:57 +00:00
Anthony Baxter 1a4ddaecc7 SF patch #1007189, multi-line imports, for instance:
"from blah import (foo, bar
baz, bongo)"
2004-08-31 10:07:13 +00:00
Michael W. Hudson 0ccff074cd This is Mark Russell's patch:
[ 1009560 ] Fix @decorator evaluation order

From the description:

Changes in this patch:

- Change Grammar/Grammar to require
newlines between adjacent decorators.

- Fix order of evaluation of decorators
in the C (compile.c) and python
(Lib/compiler/pycodegen.py) compilers

- Add better order of evaluation check
to test_decorators.py (test_eval_order)

- Update the decorator documentation in
the reference manual (improve description
of evaluation order and update syntax
description)

and the comment:

Used Brett's evaluation order (see
http://mail.python.org/pipermail/python-dev/2004-August/047835.html)

(I'm checking this in for Anthony who was having problems getting SF to
talk to him)
2004-08-17 17:29:16 +00:00
Anthony Baxter c2a5a63654 PEP-0318, @decorator-style. In Guido's words:
"@ seems the syntax that everybody can hate equally"
Implementation by Mark Russell, from SF #979728.
2004-08-02 06:10:11 +00:00
Raymond Hettinger 354433a59d SF patch #872326: Generator expression implementation
(Code contributed by Jiwon Seo.)

The documentation portion of the patch is being re-worked and will be
checked-in soon.  Likewise, PEP 289 will be updated to reflect Guido's
rationale for the design decisions on binding behavior (as described in
in his patch comments and in discussions on python-dev).

The test file, test_genexps.py, is written in doctest format and is
meant to exercise all aspects of the the patch.  Further additions are
welcome from everyone.  Please stress test this new feature as much as
possible before the alpha release.
2004-05-19 08:20:33 +00:00
Martin v. Löwis 00f1e3f5a5 Patch #534304: Implement phase 1 of PEP 263. 2002-08-04 17:29:52 +00:00
Guido van Rossum 2d3b986480 Disambiguate the grammar for backtick.
The old syntax suggested that a trailing comma was OK inside backticks,
but in fact (due to ideosyncrasies of pgen) it was not.  Fix the grammar
to avoid the ambiguity.  Fred: you may want to update the refman.
2002-05-24 15:47:06 +00:00
Tim Peters 84ee323cb9 John Aycock correctly pointed out that the grammar for
"power" was formally ambiguous.  Here's his fix.
2002-05-23 20:05:40 +00:00
Guido van Rossum 1c917072ca Very subtle syntax change: in a list comprehension, the testlist in
"for <var> in <testlist> may no longer be a single test followed by
a comma.  This solves SF bug #431886.  Note that if the testlist
contains more than one test, a trailing comma is still allowed, for
maximum backward compatibility; but this example is not:

    [(x, y) for x in range(10), for y in range(10)]
                              ^

The fix involved creating a new nonterminal 'testlist_safe' whose
definition doesn't allow the trailing comma if there's only one test:

    testlist_safe: test [(',' test)+ [',']]
2001-10-15 15:44:05 +00:00
Guido van Rossum 4668b000a1 Implement PEP 238 in its (almost) full glory.
This introduces:

- A new operator // that means floor division (the kind of division
  where 1/2 is 0).

- The "future division" statement ("from __future__ import division)
  which changes the meaning of the / operator to implement "true
  division" (where 1/2 is 0.5).

- New overloadable operators __truediv__ and __floordiv__.

- New slots in the PyNumberMethods struct for true and floor division,
  new abstract APIs for them, new opcodes, and so on.

I emphasize that without the future division statement, the semantics
of / will remain unchanged until Python 3.0.

Not yet implemented are warnings (default off) when / is used with int
or long arguments.

This has been on display since 7/31 as SF patch #443474.

Flames to /dev/null.
2001-08-08 05:00:18 +00:00
Tim Peters 5ca576ed0a Merging the gen-branch into the main line, at Guido's direction. Yay!
Bugfix candidate in inspect.py:  it was referencing "self" outside of
a method.
2001-06-18 22:08:13 +00:00
Jeremy Hylton bb40dc4892 remove commented-out vestiges of access statement 2001-02-27 18:36:14 +00:00
Neil Schemenauer 693291ba23 Superseded by $(srcdir)/Makefile.pre.in. 2001-02-03 17:18:21 +00:00
Fred Drake 0cdfc92a19 Fix typo: config.stat --> config.status 2000-09-28 20:53:39 +00:00
Thomas Wouters 434d0828d8 Support for three-token characters (**=, >>=, <<=) which was written by
Michael Hudson, and support in general for the augmented assignment syntax.
The graminit.c patch is large!
2000-08-24 20:11:32 +00:00
Fred Drake abca14d8e2 Added note stating that the parser module will need updating for most
changes to this file.
2000-08-23 15:45:28 +00:00
Skip Montanaro 46dfa5f4ed require list comprehensions to start with a for clause 2000-08-22 02:43:07 +00:00
Barry Warsaw 0360663e8e PEP 214, Extended print Statement, has been accepted by the BDFL.
This change modifies Python's grammar to include the extended print
form.
2000-08-21 15:34:33 +00:00
Thomas Wouters 9b18adcd16 Ignore Grammar/Makefile now that it's a made Makefile. 2000-08-21 12:25:17 +00:00
Thomas Wouters 5215225ea1 Apply SF patch #101135, adding 'import module as m' and 'from module import
name as n'. By doing some twists and turns, "as" is not a reserved word.

There is a slight change in semantics for 'from module import name' (it will
now honour the 'global' keyword) but only in cases that are explicitly
undocumented.
2000-08-17 22:55:00 +00:00
Sjoerd Mullender 59bb0800df Fix up problems when compiling in a directory other than the source
directory.
2000-08-17 11:38:18 +00:00
Trent Mick 9f6e6c63ef add dummy 'add2lib' target to Grammar/Makefile so non-GNU makes don't bail out
This closes patch:
http://sourceforge.net/patch/index.php?func=detailpatch&patch_id=101176&group_id=5470
2000-08-16 19:02:06 +00:00
Skip Montanaro 803d6e5451 list comprehensions. see
http://sourceforge.net/patch/?func=detailpatch&patch_id=100654&group_id=5470

for details.
2000-08-12 18:09:51 +00:00
Skip Montanaro c9bac09083 added .cvsignore so cvs doesn't complain about the generated graminit.h and
graminit.c files.
2000-07-27 20:31:12 +00:00
Jeremy Hylton 7690151c7e slightly modified version of Greg Ewing's extended call syntax patch
executive summary:
Instead of typing 'apply(f, args, kwargs)' you can type 'f(*arg, **kwargs)'.
Some file-by-file details follow.

Grammar/Grammar:
    simplify varargslist, replacing '*' '*' with '**'
    add * & ** options to arglist

Include/opcode.h & Lib/dis.py:
    define three new opcodes
        CALL_FUNCTION_VAR
        CALL_FUNCTION_KW
        CALL_FUNCTION_VAR_KW

Python/ceval.c:
    extend TypeError "keyword parameter redefined" message to include
        the name of the offending keyword
    reindent CALL_FUNCTION using four spaces
    add handling of sequences and dictionaries using extend calls
    fix function import_from to use PyErr_Format
2000-03-28 23:49:17 +00:00
Guido van Rossum d295f120ae Make first raise argument optional 1998-04-09 21:39:57 +00:00
Guido van Rossum 03a7466b8f OK, ready to make 'assert' a keyword (instead of '__assert__'). 1997-04-16 00:34:46 +00:00
Guido van Rossum 556440d278 Added __assert__ statement (later to be renamed) 1997-04-02 05:22:18 +00:00
Guido van Rossum 0dfcf753ad Disable support for access statement 1996-08-12 22:00:53 +00:00
Guido van Rossum 14f44516a4 Changes for stride in slices (x[a🅱️c]) and ellipses (x[a,...,z]) 1996-07-30 16:43:44 +00:00
Guido van Rossum 0bfd6c33fa Added power (**) operator 1996-01-12 01:00:58 +00:00
Guido van Rossum a996b910f2 new grammar for 3rd raise arg and keyword parameters 1995-07-07 22:26:23 +00:00
Guido van Rossum 4a1da26891 changed import to support NAME.NAME...NAME 1995-01-07 10:25:36 +00:00
Guido van Rossum e5f6f45a99 Got rid of history (was beginning to get silly).
Removed a few diagram breaks since Kees' program is now cleverer
1994-09-29 10:05:45 +00:00
Guido van Rossum a322862eff Added #diagram:... comments for Kees Blom's railroad diagram generator 1994-08-17 13:19:13 +00:00
Guido van Rossum da5d518d46 Bring alpha100 revision back to mainline 1994-08-01 11:00:20 +00:00
Guido van Rossum 6d5ebe24ee Added (dummy) depend target 1993-12-28 19:39:13 +00:00
Guido van Rossum 1dfec14f83 Py -> Include 1993-12-26 18:15:49 +00:00
Guido van Rossum 6fa6343f0e None 1993-12-24 10:36:57 +00:00
Guido van Rossum 248a50c168 * Grammar: corrected old typo (class instead of 'class')
* dosmodule.c: MSDOS specific stuff from posixmodule.c.
* posixmodule.c: removed all MSDOS specific stuff.
* tokenizer.h, parsetok.h: in prototypes, don't mix named and unnamed
  parameters (MSC doesn't like this).
1993-12-20 12:53:10 +00:00
Guido van Rossum 57531fea90 change syntactical position of lambdef (was an atom, now is a test) 1993-11-30 14:57:42 +00:00
Guido van Rossum 590baa4a7a * import.c (get_module): pass .py filename to parse_file, not .pyc filename!
* funcobject.c (func_repr): don't call getstringvalue(None) for anonymous
  functions.
* bltinmodule.c: removed lambda (which is now a built-in function);
  removed implied lambda for string arg to filter/map/reduce.
* Grammar, graminit.[ch], compile.[ch]: replaced lambda as built-in
  function by lambda as grammar entity: instead of "lambda('x: x+1')" you
  write "lambda x: x+1".
* Xtmodule.c (checkargdict): return 0, not NULL, for error.
1993-11-30 13:40:46 +00:00
Guido van Rossum 3b716046a0 Committing the correct graminit.c; also changed confusing comments in Grammar. 1993-10-27 13:25:30 +00:00
Guido van Rossum 12d12c5faf * compile.[ch]: support for lambda()
* PROTO.h, mymalloc.h: added #ifdefs for TURBOC and GNUC.
* allobjects.h: added #include "rangeobject.h"
* Grammar: added lambda_input; relaxed syntax for exec.
* bltinmodule.c: added bagof, map, reduce, lambda, xrange.
* tupleobject.[ch]: added resizetuple().
* rangeobject.[ch]: new object type to speed up range operations (not
  convinced this is needed!!!)
1993-10-26 17:58:25 +00:00
Guido van Rossum db3165e655 * bltinmodule.c: removed exec() built-in function.
* Grammar: add exec statement; allow testlist in expr statement.
* ceval.c, compile.c, opcode.h: support exec statement;
  avoid optimizing locals when it is used
* fileobject.{c,h}: add getfilename() internal function.
1993-10-18 17:06:59 +00:00
Guido van Rossum b3f7258f14 * Lots of small changes related to access.
* Added "access *: ...", made access work for class methods.
* Introduced subclass check: make sure that when calling
  ClassName.methodname(instance, ...), the instance is an instance of
  ClassName or of a subclass thereof (this might break some old code!)
1993-05-21 19:56:10 +00:00
Guido van Rossum 25831652fd Several changes in one:
(1) dictionaries/mappings now have attributes values() and items() as
well as keys(); at the C level, use the new function mappinggetnext()
to iterate over a dictionary.

(2) "class C(): ..." is now illegal; you must write "class C: ...".

(3) Class objects now know their own name (finally!); and minor
improvements to the way how classes, functions and methods are
represented as strings.

(4) Added an "access" statement and semantics.  (This is still
experimental -- as long as you don't use the keyword 'access' nothing
should be changed.)
1993-05-19 14:50:45 +00:00
Guido van Rossum cf49ac55ac Added missing change log entries 1992-04-06 14:39:51 +00:00
Guido van Rossum 02334d2be0 Use only '*' for varargs list 1992-04-06 12:36:19 +00:00
Guido van Rossum af82141bb6 Tighten syntax for try statements 1992-03-31 18:49:18 +00:00