On 2009-01-20 00:56, Raymond Hettinger wrote:
Why does numbers.py say:
# Copyright 2007 Google, Inc. All Rights Reserved.
# Licensed to PSF under a Contributor Agreement.
Because that's where that file originated, I guess. This is part
of what you have to do for things that are
M.-A. Lemburg wrote:
[snip...]
Does the copyright concept even apply to an
abstract base class (I thought APIs were not
subject to copyright, just like database layouts
and language definitions)?
It applies to the written program text. You are probably
thinking about other IP rights
Brett Cannon wrote:
On Mon, Jan 19, 2009 at 19:02, Scott Dial
scott+python-...@scottdial.com wrote:
Brett Cannon wrote:
3. Are brackets for optional arguments (e.g. ``def fxn(a [, b=None [,
c=None]])``) really necessary when default argument values are
present? And do we really need to
Kristján Valur Jónsson wrote:
Are you all certain that this mapping from a generator expression to
a foor loop isn't just a happy coincidence? After all, the generator
statement is just a generalization of the list comprehension and that
doesn't map quite so directly.
The mapping of the for
On 2009-01-20 11:02, Michael Foord wrote:
M.-A. Lemburg wrote:
[snip...]
Does the copyright concept even apply to an
abstract base class (I thought APIs were not
subject to copyright, just like database layouts
and language definitions)?
It applies to the written program text. You
folks, hi,
this is a fairly important issue for python development
interoperability - martin mentioned that releases of mingw-compiled
python, if done with a non-interoperable version of msvcrt, would
cause much mayhem.
well, compiling python on mingw with msvcr80 _can_ be done; using it
can also
On Tue, Jan 20, 2009 at 08:02, Luke Kenneth Casson Leighton
luke.leigh...@googlemail.com wrote:
of course - if python for win32 ENTIRELY DROPPED msvc as a development
platform, and went for an entirely free software development
toolchain, then this problem goes away.
That's a non-starter for
Tim Lesher wrote:
On Tue, Jan 20, 2009 at 08:02, Luke Kenneth Casson Leighton
luke.leigh...@googlemail.com wrote:
of course - if python for win32 ENTIRELY DROPPED msvc as a development
platform, and went for an entirely free software development
toolchain, then this problem goes away.
Luke Kenneth Casson Leighton schrieb:
of course - if python for win32 ENTIRELY DROPPED msvc as a development
platform, and went for an entirely free software development
toolchain, then this problem goes away.
thoughts, anyone?
That's not going to happen anytime soon. As long as Microsoft
On Tue, Jan 20, 2009 at 1:11 PM, Tim Lesher tles...@gmail.com wrote:
On Tue, Jan 20, 2009 at 08:02, Luke Kenneth Casson Leighton
luke.leigh...@googlemail.com wrote:
of course - if python for win32 ENTIRELY DROPPED msvc as a development
platform, and went for an entirely free software
could someone kindly send me the assembly files that are created by a
proprietary win32 build of python2.5, 2.6 and trunk, the ones used to
create the dll _and_ the python.exe
many thanks.
___
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hmmm...doesn't:
if n*n 50 or raise StopIteration()
really mean, Return an integer in the range 0-99 if n-squared is less
than fifty or the statement 'raise StopIteration()' returns True ?
I'm not sure that that will work.
On Tue, Jan 20, 2009 at 9:18 AM, python-3...@udmvt.ru wrote:
On
On Mon, Jan 19, 2009 at 10:10:00AM -0500, Gerald Britton wrote:
Please find below PEP 3142: Add a while clause to generator
expressions. I'm looking for feedback and discussion.
...
g = (n for n in range(100) while n*n 50)
May I suggest you this variant?
def
Hi all,
There is a pending patch issue at http://bugs.python.org/issue4242 which
proposes to tag, in the CPython test suite, which tests are general
language tests (the vast majority) and which ones are specific to
CPython. The patch would add a couple of helpful functions to
test_support.py
On Tue, Jan 20, 2009 at 6:18 AM, Luke Kenneth Casson Leighton
l...@lkcl.net wrote:
yeah they said the same thing about gas ovens, too. not the nazi
gas ovens, the phrase my mother used to say if someone stuck their
head in a gas oven, would you do the same?.
I don't know who is forcing you
On Tue, Jan 20, 2009 at 09:24:32AM -0500, Gerald Britton wrote:
hmmm...doesn't:
if n*n 50 or raise StopIteration()
really mean, Return an integer in the range 0-99 if n-squared is less
than fifty or the statement 'raise StopIteration()' returns True ?
I'm not sure that that will
On Tue, Jan 20, 2009 at 8:39 AM, Paul Moore p.f.mo...@gmail.com wrote:
2009/1/20 Benjamin Peterson benja...@python.org:
We might be opening a can of worms, though. Do we document everything
that takes a dictionary argument with collections.Mapping or
everything that takes a integer
OK, so your suggestion:
g = (n for n in range(100) if n*n 50 or raiseStopIteration())
really means return in in the range 0-99 if n-squared is less than 50
or the function raiseStopIteration() returns True.
How would this get the generator to stop once n*n =50? It looks
instead like the first
M.-A. Lemburg writes:
On 2009-01-20 11:02, Michael Foord wrote:
Mere collections of facts are not copyrightable as they are not
creative (the basis of copyright)
That's incorrect in the U.S.; what is copyrightable is an *original
work of expression fixed in some medium*. Original is
On Tue, Jan 20, 2009 at 10:45:27AM -0500, Gerald Britton wrote:
OK, so your suggestion:
g = (n for n in range(100) if n*n 50 or raiseStopIteration())
really means return in in the range 0-99 if n-squared is less than 50
or the function raiseStopIteration() returns True.
How would this
Yup, I tried your idea and it does work as I intended. It looks a
little better than using takewhile, but not (to me anyway) as nice as
my original suggestion. Still, if my idea is ultimately rejected
(looks that way at the moment), this is a good alternative.
On Tue, Jan 20, 2009 at 10:57 AM,
On 1/20/2009 4:45 PM, Gerald Britton wrote:
OK, so your suggestion:
g = (n for n in range(100) if n*n 50 or raiseStopIteration())
really means return in in the range 0-99 if n-squared is less than 50
or the function raiseStopIteration() returns True.
How would this get the generator to stop
Right, but the PEP is only about generator expressions.
On Tue, Jan 20, 2009 at 11:32 AM, Vitor Bosshard algor...@yahoo.com wrote:
- Mensaje original
De: python-3...@udmvt.ru python-3...@udmvt.ru
Para: Gerald Britton gerald.brit...@gmail.com
CC: python-dev@python.org
Enviado:
Stephen J. Turnbull wrote:
M.-A. Lemburg writes:
On 2009-01-20 11:02, Michael Foord wrote:
Mere collections of facts are not copyrightable as they are not
creative (the basis of copyright)
That's incorrect in the U.S.; what is copyrightable is an *original
work of expression fixed in
Alexey G. Shpagin python-3000 at udmvt.ru writes:
Example will look like
g = (n for n in range(100) if n*n 50 or else_break())
Please don't suggest any hack involving raising StopIteration as part of a
conditional statement in a generator expression. It might work today, but it
might as
- Mensaje original
De: Gerald Britton gerald.brit...@gmail.com
Para: Vitor Bosshard algor...@yahoo.com
CC: python-3...@udmvt.ru; python-dev@python.org
Enviado: martes, 20 de enero, 2009 13:40:07
Asunto: Re: [Python-Dev] PEP 3142: Add a while clause to generator
expressions
I wonder if this is a bug?
On Tue, Jan 20, 2009 at 11:32 AM, Vitor Bosshard algor...@yahoo.com wrote:
- Mensaje original
De: python-3...@udmvt.ru python-3...@udmvt.ru
Para: Gerald Britton gerald.brit...@gmail.com
CC: python-dev@python.org
Enviado: martes, 20 de enero, 2009 11:18:24
On Tue, Jan 20, 2009 at 12:46 PM, Gerald Britton
gerald.brit...@gmail.com wrote:
I wonder if this is a bug?
I don't think so, but its interesting nonetheless.
passing a generator expression to list() involves two loops: the list
construction and the generator expression. So, a StopIteration
On Tue, 20 Jan 2009 at 16:56, Antoine Pitrou wrote:
Alexey G. Shpagin python-3000 at udmvt.ru writes:
Example will look like
g = (n for n in range(100) if n*n 50 or else_break())
Please don't suggest any hack involving raising StopIteration as part of a
conditional statement in a generator
On Sun, Jan 18, 2009 at 11:49 PM, Adam Olsen rha...@gmail.com wrote:
On Sun, Jan 18, 2009 at 9:32 PM, Guido van Rossum gu...@python.org wrote:
On Sun, Jan 18, 2009 at 5:38 PM, Gregory P. Smith g...@krypto.org wrote:
+1 on getting rid of the IOBase __del__ in the C rewrite in favor of
Antoine Pitrou wrote:
Alexey G. Shpagin python-3000 at udmvt.ru writes:
Example will look like
g = (n for n in range(100) if n*n 50 or else_break())
Please don't suggest any hack involving raising StopIteration as part of a
conditional statement in a generator expression. It might work
Gerald Britton wrote:
I wonder if this is a bug?
Nope, it's part of the defined behaviour. Avoiding the overhead of the
GE machinery is actually the main advantage in using a comprehension
over the equivalent generator expression. Deliberately raising
StopIteration is about the only way to
Luke Kenneth Casson Leighton wrote:
i'd say great - but given a choice of impressive profile guided
optimisation plus a proprietary compiler, proprietary operating system
_and_ being forced to purchase a system _capable_ of running said
proprietary compiler, said proprietary operating system,
That's a non-starter for anyone who incorporates Python in an existing
MSVC-based development environment.
surely incorporating libpython2.5.dll.a or libpython2.6.dll.a, along
with the .def and the importlib that's generated with dlldump, unless
i'm missing something, would be a simple
Thanks for all the feedback.
[Michael Foord]
At Resolver Systems we regularly extend the test framework purely
to provide more diagnostic information in the event of test failures.
We do a lot of functional testing through the UI, which is particularly
prone to intermittent and hard to
On Wed, 21 Jan 2009 03:56:06 am Antoine Pitrou wrote:
Alexey G. Shpagin python-3000 at udmvt.ru writes:
Example will look like
g = (n for n in range(100) if n*n 50 or else_break())
Please don't suggest any hack involving raising StopIteration as part
of a conditional statement in a
M.-A. Lemburg wrote:
On 2009-01-20 00:56, Raymond Hettinger wrote:
Why does numbers.py say:
# Copyright 2007 Google, Inc. All Rights Reserved.
# Licensed to PSF under a Contributor Agreement.
Because that's where that file originated, I guess. This is part
of what you have to do for
On 2009-01-20 16:54, Stephen J. Turnbull wrote:
M.-A. Lemburg writes:
On 2009-01-20 11:02, Michael Foord wrote:
Mere collections of facts are not copyrightable as they are not
creative (the basis of copyright)
That's incorrect in the U.S.; what is copyrightable is an *original
Gerald Britton wrote:
I wonder if this is a bug?
It is a known glitch reported last summer. Devs decided not to fix
because doing so would, in the patches tried, slow list comps
significantly. Also, the documented intent and expected usage of
StopIteration is this
exception
[Terry Reedy]
Bottom line to me. The current notion of copyright does not work too
well with evolving, loosely collective works (which eventually become
'folklore').
I'm at a loss of why the notice needs to be there at all. AFAICT, we've
had tons of contributions from googlers and only one
On Tue, Jan 20, 2009 at 5:36 PM, Raymond Hettinger pyt...@rcn.com wrote:
[Terry Reedy]
Bottom line to me. The current notion of copyright does not work too well
with evolving, loosely collective works (which eventually become
'folklore').
I'm at a loss of why the notice needs to be there
Luke Kenneth Casson Leighton wrote:
this is a fairly important issue for python development
interoperability - martin mentioned that releases of mingw-compiled
python, if done with a non-interoperable version of msvcrt, would
cause much mayhem.
well, compiling python on mingw with msvcr80 _can_
2009/1/20 Raymond Hettinger pyt...@rcn.com:
I'm at a loss of why the notice needs to be there at all.
There's a difference between contributing a whole file and
contributing a patch. Patches do not require copyright notices. Whole
files do. This is not affected by later edits to the file.
[Raymond Hettinger]
I'm at a loss of why the notice needs to be there at all.
[GvR]
There's a difference between contributing a whole file and
contributing a patch. Patches do not require copyright notices. Whole
files do. This is not affected by later edits to the file.
That makes sense.
I would be all for cleaning up, if the lawyers agree, but I've spent
enough time talking to lawyers for the rest of my life. You know where
to reach Van Lindberg.
On Tue, Jan 20, 2009 at 5:20 PM, Raymond Hettinger pyt...@rcn.com wrote:
[Raymond Hettinger]
I'm at a loss of why the notice needs
Steven D'Aprano wrote:
Another argument against the PEP was that it breaks the correspondence
between the generator expression and the equivalent for-loop. I had
never even noticed such correspondence before, because to my eyes the
most important term is the yielded expression, not the
Guido van Rossum wrote:
2009/1/20 Raymond Hettinger pyt...@rcn.com:
I'm at a loss of why the notice needs to be there at all.
There's a difference between contributing a whole file and
contributing a patch. Patches do not require copyright notices. Whole
files do. This is not affected by
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