Hi
I often have the need for a generic object to use as the default value
for a function parameter, where 'None' is a valid value for the
parameter. For example:
_sentinel = object()
def first(iterable, default=_sentinel):
Return the first element of the iterable, otherwise the
On 5/22/07, Armin Ronacher [EMAIL PROTECTED] wrote:
* reST markup isn't much simpler than LaTeX.
* reST doesn't support nested markup, which is used in the current
documentation.
For a lightweight markup language that is human readable (which rst certainly
is) the syntax is
On 5/22/07, Georg Brandl [EMAIL PROTECTED] wrote:
Don't get me wrong, LaTeX is a powerful tool and I use it for every bigger
document i type. I just think it's not the best choice for documenting
scripting
languages.
Who's documenting a scripting language?
Hehe
I can't believe I just
On 5/22/07, Martin Blais [EMAIL PROTECTED] wrote:
ReST works well only when there is little markup. Writing code
documentation generally requires a lot of markup, you want to make
variables, classes, functions, parameters, constants, etc.. (A better
avenue IMHO would be to augment docutils
On 5/20/07, Georg Brandl [EMAIL PROTECTED] wrote:
Very nice! As well as looking very attractive and professional, the
all-Python
toolset should make it easier to build the documentation - I've not been
able to get a trouble-free setup of the docs toolchain on Windows.
Yep. As it is
Hi Georg
Super impressive work! :-)
I haven't looked at it in depth yet, but I have a question. One
concern from a long thread on Doc-Sig a long time ago, is that ReST
did not at the time possess the ability to nicely markup the objects
as LaTeX macros do. Is your transformation losing markup
In the subprocess module, by default the files handles in the child
are inherited from the parent. To ignore a child's output, I can use
the stdout or stderr options to send the output to a pipe::
p = Popen(command, stdout=PIPE, stderr=PIPE)
However, this is sensitive to the buffer deadlock
On 5/29/06, Guido van Rossum [EMAIL PROTECTED] wrote:
[python-checkins]
* Added socket.recv_buf() and socket.recvfrom_buf() methods, that
use the buffer
protocol (send and sendto already did).
* Added struct.pack_to(), that is the corresponding buffer
compatible method to
Hi all
I'd like to know what the policy is on the source code indentation for
C code in the interpreter. At the Need-for-Speed sprints, there was
consensus that there is a new indentation for style for the Python C
source files, with
* indentation (emacs: c-basic-offset): 4 chars
* no tabs (so
On 5/31/06, Guido van Rossum [EMAIL PROTECTED] wrote:
On 5/31/06, Martin Blais [EMAIL PROTECTED] wrote:
So I assume you're suggesting the following renames:
pack_to - packinto
recv_buf - recvinto
recvfrom_buf - recvfrominto
(I don't like that last one very much.
I'll go
On 5/29/06, Raymond Hettinger [EMAIL PROTECTED] wrote:
If it is really 0.5%, then we're fine. Just remember that PyStone is an
amazingly uninformative and crappy benchmark.
I'm still looking for a benchmark that is not amazingly uninformative
and crappy. I've been looking around all day, I
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On 4/7/06, Alexander Schremmer [EMAIL PROTECTED] wrote:
On Thu, 6 Apr 2006 20:35:51 -0400, Martin Blais wrote:
This is pretty standard
getttext stuff, if you used _() a lot I'm surprised you don't have a
need for N_(), I always needed it when I used i18n (or maybe I
misunderstood your
On 4/7/06, M.-A. Lemburg [EMAIL PROTECTED] wrote:
Martin Blais wrote:
Hi all
I got an evil idea for Python this morning -- Guido: no, it's not
about linked lists :-) -- , and I'd like to bounce it here. But
first, a bit of context.
This has been discussed a few times before, see e.g
On 4/7/06, Martin v. Löwis [EMAIL PROTECTED] wrote:
Martin Blais wrote:
P(a(Click here to forget, href=...
No. That's not going to work: pygettext needs to be able to extract
the string for the catalogs. No markup, no extraction. (This is how
you enter strings that are not meant
On 4/6/06, Fredrik Lundh [EMAIL PROTECTED] wrote:
Bob Ippolito wrote:
Try the 2.5 alpha 1 just released, and you'll see that the toplevel
package is now xml.etree. The module and class are still called
ElementTree, though.
It would be nice to have new code be PEP 8 compliant..
On 4/7/06, Alexander Schremmer [EMAIL PROTECTED] wrote:
On Fri, 7 Apr 2006 10:07:26 -0400, Martin Blais wrote:
There are cases where you need N_() after initialization, so you need
both, really. See the link I sent to Alex earlier (to the GNU manual
example).
On the page you were
Hi all
I got an evil idea for Python this morning -- Guido: no, it's not
about linked lists :-) -- , and I'd like to bounce it here. But
first, a bit of context.
In the context of writing i18n apps, programmers have to mark
strings that may be internationalized in a way that
- a special hook
On 4/6/06, Martin v. Löwis [EMAIL PROTECTED] wrote:
Martin Blais wrote:
...
A(P(_(Click here to forget), href=...
...
I assume that this should be
P(A(_(Click here to forget), href=...
instead (i.e. href is a parameter to A, not to P)
Yeah, that's right, sorry. (You know
On 4/6/06, Alex Martelli [EMAIL PROTECTED] wrote:
On 4/6/06, Martin Blais [EMAIL PROTECTED] wrote:
- We could also have a prefix I for strings to be marked but not
runtime-translated, to replace the N_() strings.
I'm more dubious about this one, because I don't really see the point
-- Forwarded message --
From: Martin Blais [EMAIL PROTECTED]
Date: Mar 29, 2006 10:32 PM
Subject: Python 2.5 update
To: [EMAIL PROTECTED]
Hi
I was thinking of a new action append_const to optparse, so I
googled it to check if anybody else had been thinking about the same
idea
On 12/26/05, Josiah Carlson [EMAIL PROTECTED] wrote:
A flat list or tuple would certainly be more space-efficient up to
this point. But when the graph branches, the 2-tuple representation
allows *sharing* the common path suffix (which may be very long!):
...
If there's an N-way branch,
On 12/25/05, Josiah Carlson [EMAIL PROTECTED] wrote:
Tim Peters [EMAIL PROTECTED] wrote:
Like Phillip Eby, I use 2-tuples for this when I feel the need
(usually during a backtracking graph search, to keep track of paths
back to the root in a space-efficient way), and am happy with that.
On 12/25/05, Christian Tismer [EMAIL PROTECTED] wrote:
Guido van Rossum wrote:
Python's philosophy about (built-in) data types, inherited from ABC,
is to offer a few powerful clearly distinct choices rather than lots
of alternatives with overlapping usages. This reduces the time it
takes
On 12/21/05, Barry Warsaw [EMAIL PROTECTED] wrote:
On Wed, 2005-12-21 at 20:36 +0100, Fredrik Lundh wrote:
I'm not really interested in optimizing for you, I'm interested in
optimizing
for everyone else. They already know HTML. They don't know ReST, and
I doubt they care about it (how
On 12/22/05, Phillip J. Eby [EMAIL PROTECTED] wrote:
At 04:08 PM 12/22/2005 -0500, Martin Blais wrote:
ReST does an amazing job of inferring generic document structures from
text, but for documenting source code, you really want to be able to
say This is a function, this is an optional
Hello again.
As I'm digging deeper into LISP and Scheme these days, I was
wondering, is there a good compelling reason why in Python we don't
have a native singly-linked and doubly-linked list types?
That is, reasons other than
- you can get by without it (sometimes I *want* lists), or
- you can
On 11/14/05, Bruce Eckel [EMAIL PROTECTED] wrote:
I just finished reading PEP 342, and it appears to follow Hoare's
Communicating Sequential Processes (CSP) where a process is a
coroutine, and the communicaion is via yield and send(). It seems that
if you follow that form (and you don't seem
Hi
I find myself occasionally doing this:
... = dirname(dirname(dirname(p)))
I'm always--literally every time-- looking for a more functional form,
something that would be like this:
# apply dirname() 3 times on its results, initializing with p
... = repapply(dirname, 3, p)
There is
On 10/15/05, Reinhold Birkenfeld [EMAIL PROTECTED] wrote:
Martin Blais wrote:
On 10/3/05, Michael Hudson [EMAIL PROTECTED] wrote:
Martin Blais [EMAIL PROTECTED] writes:
How hard would that be to implement?
import sys
reload(sys)
sys.setdefaultencoding('undefined')
Hmmm any
On 10/3/05, Michael Hudson [EMAIL PROTECTED] wrote:
Martin Blais [EMAIL PROTECTED] writes:
How hard would that be to implement?
import sys
reload(sys)
sys.setdefaultencoding('undefined')
Hmmm any particular reason for the call to reload() here
Hi.
Like a lot of people (or so I hear in the blogosphere...), I've been
experiencing some friction in my code with unicode conversion
problems. Even when being super extra careful with the types of str's
or unicode objects that my variables can contain, there is always some
case or oversight
On 10/3/05, M.-A. Lemburg [EMAIL PROTECTED] wrote:
I'm not sure it's a sensible default.
Me neither, especially since this would make it impossible
to write polymorphic code - e.g. ', '.join(list) wouldn't
work anymore if list contains Unicode; dito for u', '.join(list)
with list
On 10/3/05, Antoine Pitrou [EMAIL PROTECTED] wrote:
If that's how things were designed, then Python's entire standard
brary (not to mention third-party libraries) is not unicode safe -
to quote your own words - since many functions may return 8-bit strings
containing non-ascii
On 10/1/05, Antoine [EMAIL PROTECTED] wrote:
like this with their deferred objects, no? I figure they would
need to do something like this too. I will have to check.)
A Deferred object is just the abstraction of a callback - or, rather, two
callbacks: one for success and one for failure.
On 10/2/05, Christopher Armstrong [EMAIL PROTECTED] wrote:
On 10/3/05, Martin Blais [EMAIL PROTECTED] wrote:
On 10/1/05, Antoine [EMAIL PROTECTED] wrote:
like this with their deferred objects, no? I figure they would
need to do something like this too. I will have to check
Hi.
I hear a confusion that is annoying me a bit in some of the
discussions on concurrency, and I thought I'd flush my thoughts
here to help me clarify some of that stuff, because some people
on the list appear to discuss generators as a concurrency scheme,
and as far as I know (and please
On 9/19/05, Andrew McNamara [EMAIL PROTECTED] wrote:
I agree. I find I often have an object with an optional friendly name
(label) and a manditory system name. So this sort of thing becomes common:
'%s blah blah' % (foo.label or foo.name)
The if-else-expression alternative works, but
On 9/18/05, Guido van Rossum [EMAIL PROTECTED] wrote:
On 9/17/05, John J Lee [EMAIL PROTECTED] wrote:
c. Since time is needed to iron out bugs (and perhaps also to reimplememt
some pieces of code from scratch), very early in the life of Python 3
seems like the least-worst time to
On 9/12/05, Nathan Bullock [EMAIL PROTECTED] wrote:
Just wondering if a function such as this has ever
been considered? I find that I quite often want a
function that will give me a relative path from path A
to path B. I have created such a function, but it
would be nice if it was in the
On 9/11/05, [EMAIL PROTECTED] [EMAIL PROTECTED] wrote:
(Maybe someone else has already raised this point. I'm a bit behind.)
Martin Here goes something: for applications targeted to the web, where
Martin newlines don't matter, the line breaks in _()'ed strings are
Martin
On 9/8/05, Antoine Pitrou [EMAIL PROTECTED] wrote:
Hi,
Le jeudi 08 septembre 2005 à 19:12 +0900, Stephen J. Turnbull a écrit :
It would be
nice to be able to lose the _() calls to gettext(). The function
would look to see if a message catalog was available for the current
output
On 9/4/05, Tony Meyer [EMAIL PROTECTED] wrote:
Yes. If it didn't have the redirect stuff; I would like it more if it also
didn't have the trailing comma magic. print is a fundamental; it deserves
to be a statement :)
I don't know exactly what you mean by fundamental, in opposition to
your
On 9/3/05, Paolino [EMAIL PROTECTED] wrote:
Martin Blais wrote:
Then how about::
output(*(x*x for x in range(10)), iter=1)
Illegal in python2.4.(Wrongly ?) And makes the star solution half unuseful.
def f(*args,**kwargs):
... pass
...
f(*(1,2,3),iter=True)
File stdin
On 9/3/05, Barry Warsaw [EMAIL PROTECTED] wrote:
On Fri, 2005-09-02 at 21:42, Guido van Rossum wrote:
I do hate having to write two parentheses -- it's more than the extra
keystrokes. It's that I have to use two shifted characters and I have
to be sure to close the construct, which can be a
On 9/2/05, Charles Cazabon [EMAIL PROTECTED] wrote:
Fredrik Lundh [EMAIL PROTECTED] wrote:
print('foo:', foo, 'bar:', bar, 'baz:', baz,
'frobble', frobble)
To my (admittedly biased) eyes, the second version more obviously
prints to a single line.
next use case:
On 9/2/05, Steven Bethard [EMAIL PROTECTED] wrote:
Paul Moore wrote:
Interestingly enough, the other languages I use most (C, Java,
VB(Script) and Javascript (under Windows Scripting Host)) all use
functions for output. Except for C, I uniformly dislike the resulting
code - the output
On 9/2/05, Phillip J. Eby [EMAIL PROTECTED] wrote:
At 11:02 AM 9/3/2005 +1000, Nick Coghlan wrote:
Printing the items in a sequence also becomes straightforward:
print .join(map(str, range(10))) = output(*range(10))
Playing well with generator expressions comes for free, too:
print
On 9/1/05, Bill Janssen [EMAIL PROTECTED] wrote:
Providing you can live with adding a pair of parentheses to that, you can
have:
def print(*args):
sys.stdout.write(' '.join(args) + '\n')
I think the language would be cleaner if it lacked this weird exception for
`print`.
On 7/24/05, Fred L. Drake, Jr. [EMAIL PROTECTED] wrote:
On Sunday 24 July 2005 09:34, [EMAIL PROTECTED] wrote:
detailed as the full documentation? I'm inclined to think that while it
might be a noble goal, it's probably not worth the effort for several
reasons.
All your reasons not
On 7/20/05, Facundo Batista [EMAIL PROTECTED] wrote:
On 7/20/05, Martin Blais [EMAIL PROTECTED] wrote:
it got me wondering, wouldn't it be nice if
while:
...
behaved as:
while True:
-1
Explicit is better than implicit.
Well, maybe you're reading a bit too
Hi
Today I typed something funny in the interactive interpreter:
while:
File stdin, line 1
while:
^
SyntaxError: invalid syntax
it got me wondering, wouldn't it be nice if
while:
...
behaved as:
while True:
...
Since they appeared, I started using while
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