* Don't overallocate by 400% when recode is needed: only overallocate on demand
using _PyBytesWriter.
* Use _PyLong_DigitValue to convert hexadecimal digit to int
* Create _PyBytes_DecodeEscapeRecode() subfunction
Issue #25401: Optimize bytes.fromhex() and bytearray.fromhex(): they are now
between 2x and 3.5x faster. Changes:
* Use a fast-path working on a char* string for ASCII string
* Use a slow-path for non-ASCII string
* Replace slow hex_digit_to_int() function with a O(1) lookup in
_PyLong_DigitValue precomputed table
* Use _PyBytesWriter API to handle the buffer
* Add unit tests to check the error position in error messages
Optimize bytes.__mod__(args) for integere formats: %d (%i, %u), %o, %x and %X.
_PyBytesWriter is now used to format directly the integer into the writer
buffer, instead of using a temporary bytes object.
Formatting is between 30% and 50% faster on a microbenchmark.
* Formatting string, int, float and complex use the _PyUnicodeWriter API. It
avoids a temporary buffer in most cases.
* Add _PyUnicodeWriter_WriteStr() to restore the PyAccu optimization: just
keep a reference to the string if the output is only composed of one string
* Disable overallocation when formatting the last argument of str%args and
str.format(args)
* Overallocation allocates at least 100 characters: add min_length attribute
to the _PyUnicodeWriter structure
* Add new private functions: _PyUnicode_FastCopyCharacters(),
_PyUnicode_FastFill() and _PyUnicode_FromASCII()
The speed up is around 20% in average.
POSIX systems with a C extension module. This is required in order for
the subprocess module to be made thread safe.
The pure python implementation is retained so that it can continue to be
used if for some reason the _posixsubprocess extension module is not
available.
The unittest executes tests on both code paths to guarantee compatibility.
* Moves PyLong_FromPid and PyLong_AsPid from posixmodule.c into longobject.h.
Code reviewed by jeffrey.yasskin at http://codereview.appspot.com/223077/show
svn+ssh://pythondev@svn.python.org/python/trunk
........
r77842 | mark.dickinson | 2010-01-30 10:08:33 +0000 (Sat, 30 Jan 2010) | 4 lines
Issue #7767: Add new C-API function PyLong_AsLongLongAndOverflow, a
long long variant of PyLong_AsLongAndOverflow. Patch by Case Van
Horsen.
........
svn+ssh://pythondev@svn.python.org/python/trunk
........
r77234 | mark.dickinson | 2010-01-02 14:45:40 +0000 (Sat, 02 Jan 2010) | 7 lines
Refactor some longobject internals: PyLong_AsDouble and _PyLong_AsScaledDouble
(the latter renamed to _PyLong_Frexp) now use the same core code. The
exponent produced by _PyLong_Frexp now has type Py_ssize_t instead of the
previously used int, and no longer needs scaling by PyLong_SHIFT. This
frees the math module from having to know anything about the PyLong
implementation. This closes issue #5576.
........
- new configure option --enable-big-digits
- new structseq sys.int_info giving information about the internal format
By default, 30-bit digits are enabled on 64-bit machines but
disabled on 32-bit machines.
I replaced sys.maxint with sys.maxsize in Lib/*.py. Does anybody see a problem with the change on Win 64bit platforms? Win 64's long is just 32bit but the sys.maxsize is now 2**63-1 on every 64bit platform.
Also added docs for sys.maxsize.
to ssl.py (no need to test whether we can dup any more).
Regular sockets no longer have a _base, but we still have explicit
reference counting of socket objects for the benefit of makefile();
using duplicate sockets won't work for SSLSocket.
svn+ssh://pythondev@svn.python.org/python/branches/p3yk
................
r55837 | guido.van.rossum | 2007-06-08 16:04:42 -0700 (Fri, 08 Jun 2007) | 2 lines
PEP 3119 -- the abc module.
................
r55838 | guido.van.rossum | 2007-06-08 17:38:55 -0700 (Fri, 08 Jun 2007) | 2 lines
Implement part of PEP 3119 -- One Trick Ponies.
................
r55847 | guido.van.rossum | 2007-06-09 08:28:06 -0700 (Sat, 09 Jun 2007) | 2 lines
Different way to do one trick ponies, allowing registration (per PEP strawman).
................
r55849 | guido.van.rossum | 2007-06-09 18:06:38 -0700 (Sat, 09 Jun 2007) | 3 lines
Make sure that the magic looking for __hash__ (etc.) doesn't apply to
real subclasses of Hashable.
................
r55852 | guido.van.rossum | 2007-06-10 08:29:51 -0700 (Sun, 10 Jun 2007) | 2 lines
Add some more examples, e.g. generators and dict views.
................
r55853 | guido.van.rossum | 2007-06-10 08:31:59 -0700 (Sun, 10 Jun 2007) | 2 lines
keys() and items() *are* containers -- just values() isn't.
................
r55864 | georg.brandl | 2007-06-10 15:29:40 -0700 (Sun, 10 Jun 2007) | 2 lines
PEP 3127: new octal literals, binary literals.
................
r55865 | georg.brandl | 2007-06-10 15:31:37 -0700 (Sun, 10 Jun 2007) | 2 lines
Some octal literal fixes in Tools.
................
r55866 | georg.brandl | 2007-06-10 15:37:43 -0700 (Sun, 10 Jun 2007) | 2 lines
Tokenizer changes for PEP 3127.
................
r55867 | georg.brandl | 2007-06-10 15:37:55 -0700 (Sun, 10 Jun 2007) | 2 lines
Some docs for PEP 3127.
................
r55868 | georg.brandl | 2007-06-10 15:44:39 -0700 (Sun, 10 Jun 2007) | 2 lines
Missed a place in intobject.c. Is that used anymore anyway?
................
r55871 | neal.norwitz | 2007-06-10 18:31:49 -0700 (Sun, 10 Jun 2007) | 182 lines
Merged revisions 55729-55868 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk
........
r55731 | neal.norwitz | 2007-06-01 00:29:12 -0700 (Fri, 01 Jun 2007) | 7 lines
SF 1668596/1720897: distutils now copies data files
even if package_dir is empty.
This needs to be backported. I'm too tired tonight. It would be great
if someone backports this if the buildbots are ok with it. Otherwise,
I will try to get to it tomorrow.
........
r55732 | georg.brandl | 2007-06-01 04:33:33 -0700 (Fri, 01 Jun 2007) | 2 lines
Bug #1722484: remove docstrings again when running with -OO.
........
r55735 | georg.brandl | 2007-06-01 12:20:27 -0700 (Fri, 01 Jun 2007) | 2 lines
Fix wrong issue number.
........
r55739 | brett.cannon | 2007-06-01 20:02:29 -0700 (Fri, 01 Jun 2007) | 3 lines
Have configure raise an error when building on AtheOS. Code specific to AtheOS
will be removed in Python 2.7.
........
r55746 | neal.norwitz | 2007-06-02 11:33:53 -0700 (Sat, 02 Jun 2007) | 1 line
Update expected birthday of 2.6
........
r55751 | neal.norwitz | 2007-06-03 13:32:50 -0700 (Sun, 03 Jun 2007) | 10 lines
Backout the original 'fix' to 1721309 which had no effect.
Different versions of Berkeley DB handle this differently.
The comments and bug report should have the details. Memory is allocated
in 4.4 (and presumably earlier), but not in 4.5. Thus
4.5 has the free error, but not earlier versions.
Mostly update comments, plus make the free conditional.
This fix was already applied to the 2.5 branch.
........
r55752 | brett.cannon | 2007-06-03 16:13:41 -0700 (Sun, 03 Jun 2007) | 6 lines
Make _strptime.TimeRE().pattern() use ``\s+`` for matching whitespace instead
of ``\s*``. This prevents patterns from "stealing" bits from other patterns in
order to make a match work.
Closes bug #1730389. Will be backported.
........
r55766 | hyeshik.chang | 2007-06-05 11:16:52 -0700 (Tue, 05 Jun 2007) | 4 lines
Fix build on FreeBSD. Bluetooth HCI API in FreeBSD is quite different
from Linux's. Just fix the build for now but the code doesn't
support the complete capability of HCI on FreeBSD yet.
........
r55770 | hyeshik.chang | 2007-06-05 11:58:51 -0700 (Tue, 05 Jun 2007) | 4 lines
Bug #1728403: Fix a bug that CJKCodecs StreamReader hangs when it
reads a file that ends with incomplete sequence and sizehint argument
for .read() is specified.
........
r55775 | hyeshik.chang | 2007-06-05 12:28:15 -0700 (Tue, 05 Jun 2007) | 2 lines
Fix for Windows: close a temporary file before trying to delete it.
........
r55783 | guido.van.rossum | 2007-06-05 14:24:47 -0700 (Tue, 05 Jun 2007) | 2 lines
Patch by Tim Delany (missing DECREF). SF #1731330.
........
r55785 | collin.winter | 2007-06-05 17:17:35 -0700 (Tue, 05 Jun 2007) | 3 lines
Patch #1731049: make threading.py use a proper "raise" when checking internal state, rather than assert statements (which get stripped out by -O).
........
r55786 | facundo.batista | 2007-06-06 08:13:37 -0700 (Wed, 06 Jun 2007) | 4 lines
FTP.ntransfercmd method now uses create_connection when passive,
using the timeout received in connection time.
........
r55792 | facundo.batista | 2007-06-06 10:15:23 -0700 (Wed, 06 Jun 2007) | 7 lines
Added an optional timeout parameter to function urllib2.urlopen,
with tests in test_urllib2net.py (must have network resource
enabled to execute them). Also modified test_urllib2.py because
testing mock classes must take it into acount. Docs are also
updated.
........
r55793 | thomas.heller | 2007-06-06 13:19:19 -0700 (Wed, 06 Jun 2007) | 1 line
Build _ctypes and _ctypes_test in the ReleaseAMD64 configuration.
........
r55802 | georg.brandl | 2007-06-07 06:23:24 -0700 (Thu, 07 Jun 2007) | 3 lines
Disallow function calls like foo(None=1).
Backport from py3k rev. 55708 by Guido.
........
r55804 | georg.brandl | 2007-06-07 06:30:24 -0700 (Thu, 07 Jun 2007) | 2 lines
Make reindent.py executable.
........
r55805 | georg.brandl | 2007-06-07 06:34:10 -0700 (Thu, 07 Jun 2007) | 2 lines
Patch #1667860: Fix UnboundLocalError in urllib2.
........
r55821 | kristjan.jonsson | 2007-06-07 16:53:49 -0700 (Thu, 07 Jun 2007) | 1 line
Fixing changes to getbuildinfo.c that broke linux builds
........
r55828 | thomas.heller | 2007-06-08 09:10:27 -0700 (Fri, 08 Jun 2007) | 1 line
Make this test work with older Python releases where struct has no 't' format character.
........
r55829 | martin.v.loewis | 2007-06-08 10:29:20 -0700 (Fri, 08 Jun 2007) | 3 lines
Bug #1733488: Fix compilation of bufferobject.c on AIX.
Will backport to 2.5.
........
r55831 | thomas.heller | 2007-06-08 11:20:09 -0700 (Fri, 08 Jun 2007) | 2 lines
[ 1715718 ] x64 clean compile patch for _ctypes, by Kristj?n Valur
with small modifications.
........
r55832 | thomas.heller | 2007-06-08 12:01:06 -0700 (Fri, 08 Jun 2007) | 1 line
Fix gcc warnings intruduced by passing Py_ssize_t to PyErr_Format calls.
........
r55833 | thomas.heller | 2007-06-08 12:08:31 -0700 (Fri, 08 Jun 2007) | 2 lines
Fix wrong documentation, and correct the punktuation.
Closes [1700455].
........
r55834 | thomas.heller | 2007-06-08 12:14:23 -0700 (Fri, 08 Jun 2007) | 1 line
Fix warnings by using proper function prototype.
........
r55839 | neal.norwitz | 2007-06-08 20:36:34 -0700 (Fri, 08 Jun 2007) | 7 lines
Prevent expandtabs() on string and unicode objects from causing a segfault when
a large width is passed on 32-bit platforms. Found by Google.
It would be good for people to review this especially carefully and verify
I don't have an off by one error and there is no other way to cause overflow.
........
r55841 | neal.norwitz | 2007-06-08 21:48:22 -0700 (Fri, 08 Jun 2007) | 1 line
Use macro version of GET_SIZE to avoid Coverity warning (#150) about a possible error.
........
r55842 | martin.v.loewis | 2007-06-09 00:42:52 -0700 (Sat, 09 Jun 2007) | 3 lines
Patch #1733960: Allow T_LONGLONG to accept ints.
Will backport to 2.5.
........
r55843 | martin.v.loewis | 2007-06-09 00:58:05 -0700 (Sat, 09 Jun 2007) | 2 lines
Fix Windows build.
........
r55845 | martin.v.loewis | 2007-06-09 03:10:26 -0700 (Sat, 09 Jun 2007) | 2 lines
Provide LLONG_MAX for S390.
........
r55854 | thomas.heller | 2007-06-10 08:59:17 -0700 (Sun, 10 Jun 2007) | 4 lines
First version of build scripts for Windows/AMD64 (no external
components are built yet, and 'kill_python' is disabled).
........
r55855 | thomas.heller | 2007-06-10 10:55:51 -0700 (Sun, 10 Jun 2007) | 3 lines
For now, disable the _bsddb, _sqlite3, _ssl, _testcapi, _tkinter
modules in the ReleaseAMD64 configuration because they do not compile.
........
r55856 | thomas.heller | 2007-06-10 11:27:54 -0700 (Sun, 10 Jun 2007) | 1 line
Need to set the environment variables, otherwise devenv.com is not found.
........
r55860 | thomas.heller | 2007-06-10 14:01:17 -0700 (Sun, 10 Jun 2007) | 1 line
Revert commit 55855.
........
................
r55880 | neal.norwitz | 2007-06-10 22:07:36 -0700 (Sun, 10 Jun 2007) | 5 lines
Fix the refleak counter on test_collections. The ABC metaclass creates
a registry which must be cleared on each run. Otherwise, there *seem*
to be refleaks when there really aren't any. (The class is held within
the registry even though it's no longer needed.)
................
r55884 | neal.norwitz | 2007-06-10 22:46:33 -0700 (Sun, 10 Jun 2007) | 1 line
These tests have been removed, so they are no longer needed here
................
r55886 | georg.brandl | 2007-06-11 00:26:37 -0700 (Mon, 11 Jun 2007) | 3 lines
Optimize access to True and False in the compiler (if True)
and the peepholer (LOAD_NAME True).
................
r55905 | georg.brandl | 2007-06-11 10:02:26 -0700 (Mon, 11 Jun 2007) | 5 lines
Remove __oct__ and __hex__ and use __index__ for converting
non-ints before formatting in a base.
Add a bin() builtin.
................
r55906 | georg.brandl | 2007-06-11 10:04:44 -0700 (Mon, 11 Jun 2007) | 2 lines
int(x, 0) does not "guess".
................
r55907 | georg.brandl | 2007-06-11 10:05:47 -0700 (Mon, 11 Jun 2007) | 2 lines
Add a comment to explain that nb_oct and nb_hex are nonfunctional.
................
r55908 | guido.van.rossum | 2007-06-11 10:49:18 -0700 (Mon, 11 Jun 2007) | 2 lines
Get rid of unused imports and comment.
................
r55910 | guido.van.rossum | 2007-06-11 13:05:17 -0700 (Mon, 11 Jun 2007) | 2 lines
_Abstract.__new__ now requires either no arguments or __init__ overridden.
................
r55911 | guido.van.rossum | 2007-06-11 13:07:49 -0700 (Mon, 11 Jun 2007) | 7 lines
Move the collections ABCs to a separate file, _abcoll.py, in order to avoid
needing to import _collections.so during the bootstrap (this will become
apparent in the next submit of os.py).
Add (plain and mutable) ABCs for Set, Mapping, Sequence.
................
r55912 | guido.van.rossum | 2007-06-11 13:09:31 -0700 (Mon, 11 Jun 2007) | 2 lines
Rewrite the _Environ class to use the new collections ABCs.
................
r55913 | guido.van.rossum | 2007-06-11 13:59:45 -0700 (Mon, 11 Jun 2007) | 72 lines
Merged revisions 55869-55912 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk
........
r55869 | neal.norwitz | 2007-06-10 17:42:11 -0700 (Sun, 10 Jun 2007) | 1 line
Add Atul Varma for patch # 1667860
........
r55870 | neal.norwitz | 2007-06-10 18:22:03 -0700 (Sun, 10 Jun 2007) | 1 line
Ignore valgrind problems on Ubuntu from ld
........
r55872 | neal.norwitz | 2007-06-10 18:48:46 -0700 (Sun, 10 Jun 2007) | 2 lines
Ignore config.status.lineno which seems new (new autoconf?)
........
r55873 | neal.norwitz | 2007-06-10 19:14:39 -0700 (Sun, 10 Jun 2007) | 1 line
Prevent these tests from running on Win64 since they don\'t apply there either
........
r55874 | neal.norwitz | 2007-06-10 19:16:10 -0700 (Sun, 10 Jun 2007) | 5 lines
Fix a bug when there was a newline in the string expandtabs was called on.
This also catches another condition that can overflow.
Will backport.
........
r55879 | neal.norwitz | 2007-06-10 21:52:37 -0700 (Sun, 10 Jun 2007) | 1 line
Prevent hang if the port cannot be opened.
........
r55881 | neal.norwitz | 2007-06-10 22:28:45 -0700 (Sun, 10 Jun 2007) | 4 lines
Add all of the distuils modules that don't seem to have explicit tests. :-(
Move an import in mworkscompiler so that this module can be imported on
any platform. Hopefully this works on all platforms.
........
r55882 | neal.norwitz | 2007-06-10 22:35:10 -0700 (Sun, 10 Jun 2007) | 4 lines
SF #1734732, lower case the module names per PEP 8.
Will backport.
........
r55885 | neal.norwitz | 2007-06-10 23:16:48 -0700 (Sun, 10 Jun 2007) | 4 lines
Not sure why this only fails sometimes on Unix machines. Better
to disable it and only import msvccompiler on Windows since that's
the only place it can work anyways.
........
r55887 | neal.norwitz | 2007-06-11 00:29:43 -0700 (Mon, 11 Jun 2007) | 4 lines
Bug #1734723: Fix repr.Repr() so it doesn't ignore the maxtuple attribute.
Will backport
........
r55889 | neal.norwitz | 2007-06-11 00:36:24 -0700 (Mon, 11 Jun 2007) | 1 line
Reflow long line
........
r55896 | thomas.heller | 2007-06-11 08:58:33 -0700 (Mon, 11 Jun 2007) | 3 lines
Use "O&" in calls to PyArg_Parse when we need a 'void*' instead of "k"
or "K" codes.
........
r55901 | facundo.batista | 2007-06-11 09:27:08 -0700 (Mon, 11 Jun 2007) | 5 lines
Added versionchanged flag to all the methods which received
a new optional timeout parameter, and a versionadded flag to
the socket.create_connection function.
........
................
r55914 | guido.van.rossum | 2007-06-11 14:19:50 -0700 (Mon, 11 Jun 2007) | 3 lines
New super() implementation, for PEP 3135 (though the PEP is not yet updated
to this design, and small tweaks may still be made later).
................
r55923 | guido.van.rossum | 2007-06-11 21:15:24 -0700 (Mon, 11 Jun 2007) | 4 lines
I'm guessing this module broke when Neal ripped out the types module --
it used 'list' both as a local variable and as the built-in list type.
Renamed the local variable since that was easier.
................
r55924 | guido.van.rossum | 2007-06-11 21:20:05 -0700 (Mon, 11 Jun 2007) | 5 lines
Change all occurrences of super(<thisclass>, <firstarg>) to super().
Seems to have worked, all the tests still pass.
Exception: test_descr and test_descrtut, which have tons of these
and are there to test the various usages.
................
r55939 | collin.winter | 2007-06-12 13:57:33 -0700 (Tue, 12 Jun 2007) | 1 line
Patch #1735485: remove StandardError from the exception hierarchy.
................
r55954 | neal.norwitz | 2007-06-12 21:56:32 -0700 (Tue, 12 Jun 2007) | 51 lines
Merged revisions 55913-55950 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk
........
r55926 | marc-andre.lemburg | 2007-06-12 02:09:58 -0700 (Tue, 12 Jun 2007) | 3 lines
Apply patch #1734945 to support TurboLinux as distribution.
........
r55927 | marc-andre.lemburg | 2007-06-12 02:26:49 -0700 (Tue, 12 Jun 2007) | 3 lines
Add patch #1726668: Windows Vista support.
........
r55929 | thomas.heller | 2007-06-12 08:36:22 -0700 (Tue, 12 Jun 2007) | 1 line
Checkout, but do not yet try to build, exernal sources.
........
r55930 | thomas.heller | 2007-06-12 09:08:27 -0700 (Tue, 12 Jun 2007) | 6 lines
Add bufferoverflowU.lib to the libraries needed by _ssl (is this the
right thing to do?).
Set the /XP64 /RETAIL build enviroment in the makefile when building
ReleaseAMD64.
........
r55931 | thomas.heller | 2007-06-12 09:23:19 -0700 (Tue, 12 Jun 2007) | 5 lines
Revert this change, since it breaks the win32 build:
Add bufferoverflowU.lib to the libraries needed by _ssl (is this the
right thing to do?).
........
r55934 | thomas.heller | 2007-06-12 10:28:31 -0700 (Tue, 12 Jun 2007) | 3 lines
Specify the bufferoverflowU.lib to the makefile on the command line
(for ReleaseAMD64 builds).
........
r55937 | thomas.heller | 2007-06-12 12:02:59 -0700 (Tue, 12 Jun 2007) | 3 lines
Add bufferoverflowU.lib to PCBuild\_bsddb.vcproj.
Build sqlite3.dll and bsddb.
........
r55938 | thomas.heller | 2007-06-12 12:56:12 -0700 (Tue, 12 Jun 2007) | 2 lines
Don't rebuild Berkeley DB if not needed (this was committed by accident).
........
r55948 | martin.v.loewis | 2007-06-12 20:42:19 -0700 (Tue, 12 Jun 2007) | 3 lines
Provide PY_LLONG_MAX on all systems having long long.
Will backport to 2.5.
........
................
r55959 | guido.van.rossum | 2007-06-13 09:22:41 -0700 (Wed, 13 Jun 2007) | 2 lines
Fix a compilation warning.
................
svn+ssh://pythondev@svn.python.org/python/trunk
........
r53899 | neal.norwitz | 2007-02-25 16:52:27 +0100 (Sun, 25 Feb 2007) | 1 line
Add more details when releasing interned strings
........
r53900 | neal.norwitz | 2007-02-25 16:53:36 +0100 (Sun, 25 Feb 2007) | 1 line
Whitespace only changes
........
r53901 | jeremy.hylton | 2007-02-25 16:57:45 +0100 (Sun, 25 Feb 2007) | 8 lines
Fix crash in exec when unicode filename can't be decoded.
I can't think of an easy way to test this behavior. It only occurs
when the file system default encoding and the interpreter default
encoding are different, such that you can open the file but not decode
its name.
........
r53902 | jeremy.hylton | 2007-02-25 17:01:58 +0100 (Sun, 25 Feb 2007) | 2 lines
Put declarations before code.
........
r53910 | fred.drake | 2007-02-25 18:56:27 +0100 (Sun, 25 Feb 2007) | 3 lines
- SF patch #1657613: add documentation for the Element interface
- clean up bogus use of the {datadescni} environment everywhere
........
r53911 | neal.norwitz | 2007-02-25 20:44:48 +0100 (Sun, 25 Feb 2007) | 17 lines
Variation of patch # 1624059 to speed up checking if an object is a subclass
of some of the common builtin types.
Use a bit in tp_flags for each common builtin type. Check the bit
to determine if any instance is a subclass of these common types.
The check avoids a function call and O(n) search of the base classes.
The check is done in the various Py*_Check macros rather than calling
PyType_IsSubtype().
All the bits are set in tp_flags when the type is declared
in the Objects/*object.c files because PyType_Ready() is not called
for all the types. Should PyType_Ready() be called for all types?
If so and the change is made, the changes to the Objects/*object.c files
can be reverted (remove setting the tp_flags). Objects/typeobject.c
would also have to be modified to add conditions
for Py*_CheckExact() in addition to each the PyType_IsSubtype check.
........
Serhiy Storchaka
Benjamin Peterson
Martin Panter
Victor Stinner
Richard Oudkerk
Ezio Melotti
Martin v. Löwis
Antoine Pitrou
Mark Dickinson
Gregory P. Smith
Raymond Hettinger
Eric Smith
Christian Heimes
Guido van Rossum
Neal Norwitz
Thomas Wouters