On Mar 21, 11:06 am, Nathan Rice
wrote:
> As for syntax, we have a lot of "real" domain specific languages, such
> as English, math and logic. They are vetted, understood and useful
> outside the context of programming. We should approach the discussion
> of language syntax from the perspective o
On Mar 22, 1:56 am, Steven D'Aprano wrote:
> On Wed, 21 Mar 2012 18:35:16 -0700, Steve Howell wrote:
> > On Mar 21, 11:06 am, Nathan Rice
> > wrote:
> >> As for syntax, we have a lot of "real" domain specific languages, such
> >> as English, math a
On Mar 22, 7:29 am, Nathan Rice
wrote:
> On Thu, Mar 22, 2012 at 9:17 AM, Chris Angelico wrote:
> > On Thu, Mar 22, 2012 at 11:47 PM, Nathan Rice
> > wrote:
> >> Having one core language with
> >> many DSLs that can interoperate is infinitely better than having many
> >> languages that cannot.
On Mar 22, 10:44 am, Steven D'Aprano wrote:
> On Thu, 22 Mar 2012 10:29:48 -0400, Nathan Rice wrote:
>
> Or at least before *I* black out. Even if somebody manages to write your
> meta-language, you're going to run into the problem of who is going to be
> able to use it. The typical developer know
On Mar 22, 6:11 pm, Steven D'Aprano wrote:
> On Fri, 23 Mar 2012 06:14:46 +1100, Chris Angelico wrote:
> > In any case, though, I agree that there's a lot of people professionally
> > writing code who would know about the 3-4 that you say. I'm just not
> > sure that they're any good at coding, eve
On Mar 22, 12:14 pm, Chris Angelico wrote:
> On Fri, Mar 23, 2012 at 4:44 AM, Steven D'Aprano
>
> wrote:
> > The typical developer knows three, maybe four languages
> > moderately well, if you include SQL and regexes as languages, and might
> > have a nodding acquaintance with one or two more.
>
On Mar 22, 8:20 pm, rusi wrote:
> On Mar 23, 7:42 am, Steve Howell wrote:
>
> > Do you think we'll always have a huge number of incompatible
> > programming languages? I agree with you that it's a fact of life in
> > 2012, but will it be a fact of life in 2
On Mar 22, 9:43 pm, MRAB wrote:
> On 23/03/2012 04:16, Steve Howell wrote:
>
>
>
>
>
>
>
> > On Mar 22, 8:20 pm, rusi wrote:
> >> On Mar 23, 7:42 am, Steve Howell wrote:
>
> >> > Do you think we'll always have a huge number of inc
On Mar 23, 12:05 am, Chris Angelico wrote:
> On Fri, Mar 23, 2012 at 1:48 PM, Steve Howell wrote:
> > On Mar 22, 6:11 pm, Steven D'Aprano > +comp.lang.pyt...@pearwood.info> wrote:
> >> In any case, I'm not talking about the best developers. I'm talking a
On Mar 22, 6:11 pm, Steven D'Aprano wrote:
> On Fri, 23 Mar 2012 06:14:46 +1100, Chris Angelico wrote:
> > On Fri, Mar 23, 2012 at 4:44 AM, Steven D'Aprano
> > wrote:
> >> The typical developer knows three, maybe four languages moderately
> >> well, if you include SQL and regexes as languages, an
I have a use case where I'm running BaseHTTPServer.HTTPServer, and I
want to configure the request handler with some context. I've gotten
the code to work, but it feels overly heavy. I am wondering if
anybody could suggest an easier idiom for this.
This is a brief sketch of the code:
class
On Mar 23, 12:19 pm, Bernhard Herzog wrote:
> Steve Howell writes:
> > I have a use case where I'm running BaseHTTPServer.HTTPServer, and I
> > want to configure the request handler with some context. I've gotten
> > the code to work, but it feels overly heavy.
On Mar 26, 3:56 pm, Abhishek Pratap wrote:
> Hi Guys
>
> I am fwding this question from the python tutor list in the hope of
> reaching more people experienced in concurrent disk access in python.
>
> I am trying to see if there are ways in which I can read a big file
> concurrently on a multi cor
On Mar 28, 6:55 pm, Ben Finney wrote:
> Steven D'Aprano writes:
> > (By the way, I have to question the design of an exception with error
> > codes. That seems pretty poor design to me. Normally the exception *type*
> > acts as equivalent to an error code.)
>
> Have a look at Python's built-in OS
On Mar 29, 7:03 am, Chris Angelico wrote:
> On Fri, Mar 30, 2012 at 12:44 AM, Nathan Rice
>
> wrote:
> > We would be better off if all the time that was spent on learning
> > syntax, memorizing library organization and becoming proficient with
> > new tools was spent learning the mathematics, log
On Mar 29, 11:53 am, Devin Jeanpierre wrote:
> Well, what sort of language differences make for English vs Mandarin?
> Relational algebraic-style programming is useful, but definitely a
> large language barrier to people that don't know any SQL. I think this
> is reasonable. (It would not matter
On Mar 29, 9:38 pm, Nathan Rice
wrote:
> The mathematics of the 20th century, (from the early 30s onward) tend
> to get VERY abstract, in just the way Joel decries. Category theory,
> model theory, modern algebraic geometry, topos theory, algebraic graph
> theory, abstract algebras and topologic
On Mar 29, 9:42 am, Devin Jeanpierre wrote:
> On Thu, Mar 29, 2012 at 10:03 AM, Chris Angelico wrote:
> > You can't merge all of them without making a language that's
> > suboptimal at most of those tasks - probably, one that's woeful at all
> > of them. I mention SQL because, even if you were to
On Mar 29, 8:36 pm, Steven D'Aprano wrote:
> The Romans had perfectly functioning concrete without any abstract
> understanding of chemistry.
If I ever stumbled upon a technology that proved how useless abstract
thinking was, do you know what I would call it?
"Concrete."
Damn, those clever Rom
On Mar 30, 1:20 pm, Chris Angelico wrote:
> > Really? Or could it be that algorithms for natural language
> > processing that don't fail miserably is a very recent development,
> > restricted natural languages more recent still, and pretty much all
> > commonly used programming languages are all
On Mar 31, 1:13 pm, Tim Rowe wrote:
>
> I know 10 languages. But I'm not telling you what base that number is :)
>
Well, that means you know at least two programming languages, which
puts you ahead of a lot of people. :)
Some folks, when confronted with a problem, decide to solve it with
binary
On Mar 30, 11:25 pm, Lie Ryan wrote:
> On 03/21/2012 01:44 PM, Steve Howell wrote:
>
> > Also, don't they call those thingies "object" for a reason? ;)
>
> A subject is (almost?) always a noun, and so a subject is also an object.
It's true that words that
On Apr 1, 8:30 pm, alex23 wrote:
> On Mar 31, 2:02 am, Steve Howell wrote:
>
> > Steven, how do you predict which abstractions are going to be useless?
>
> A useless abstraction is one that does nothing to simplify a problem
> *now*:
That's the very definition of shor
On Mar 31, 3:29 am, Terry Reedy wrote:
> On 3/31/2012 2:22 AM, Yingjie Lan wrote:
>
> > Hi all,
>
> > I'd really like to share this idea of string interpolation for formatting.
> > Let's start with some code:
>
> > >>> name = "Shrek"
> > >>> print( "Hi, $name$!")
> > Hi, Shrek!
> > >>> balls =
Hi everyone, I have compiled over 500 Python programs from the Rosetta
Code website in this page:
http://shpaml.webfactional.com/misc/RosettaCoffee/python.htm
For those of you unfamiliar with Rosetta Code, you can read more
here:
http://rosettacode.org/wiki/Rosetta_Code
For the record,
On Apr 2, 2:50 pm, Chris Angelico wrote:
> On Fri, Mar 30, 2012 at 2:48 AM, Steve Howell wrote:
> > I agree with you on the overall point, but I think that Python
> > actually does a fine job of replacing REXX and PHP. I've used both of
> > the latter (and, of course,
On Apr 3, 3:13 pm, looking for wrote:
> Hi
>
> We are thinking about building a webservice server and considering
> python event-driven servers i.e. Gevent/Tornado/ Twisted or some
> combination thereof etc.
>
> We are having doubts about the db io part. Even with connection
> pooling and cache, t
On Apr 3, 11:19 pm, Steven D'Aprano wrote:
> On Tue, 03 Apr 2012 08:39:14 -0400, Nathan Rice wrote:
> > Much like
> > with the terminal to GUI transition, you will have people attacking
> > declarative natural language programming as a stupid practice for noobs,
> > and the end of computing (even
On Apr 4, 1:37 am, Chris Angelico wrote:
> On Wed, Apr 4, 2012 at 3:53 PM, Steven D'Aprano
>
> wrote:
> > On Tue, 03 Apr 2012 15:46:31 -0400, D'Arcy Cain wrote:
>
> >> def cp(infile, outfile):
> >> open(outfile, "w").write(open(infile).read())
>
> > Because your cp doesn't copy the FILE, it co
On Apr 4, 9:49 pm, Steven D'Aprano wrote:
> I can connect to an IMAP server using Python 2.6:
>
> steve@runes:~$ python2.6
> Python 2.6.6 (r266:84292, Dec 27 2010, 00:02:40)
> [GCC 4.4.5] on linux2
> Type "help", "copyright", "credits" or
On Apr 5, 12:09 am, Steven D'Aprano wrote:
> On Wed, 04 Apr 2012 22:13:55 -0700, Steve Howell wrote:
> > On Apr 4, 9:49 pm, Steven D'Aprano > +comp.lang.pyt...@pearwood.info> wrote:
> >> I can connect to an IMAP server using Python 2.6:
>
> >> st
On Apr 5, 12:09 am, Steven D'Aprano wrote:
> On Wed, 04 Apr 2012 22:13:55 -0700, Steve Howell wrote:
> > On Apr 4, 9:49 pm, Steven D'Aprano > +comp.lang.pyt...@pearwood.info> wrote:
> >> I can connect to an IMAP server using Python 2.6:
>
> >> st
On Apr 5, 5:25 am, Steven D'Aprano wrote:
> On Thu, 05 Apr 2012 12:16:09 +, Steven D'Aprano wrote:
> > On Thu, 05 Apr 2012 00:21:31 -0700, Steve Howell wrote:
> >> Why are you changing the invocation between versions of Python?
>
> > Because imaplib.IMA
On Apr 5, 5:32 am, Roy Smith wrote:
> [...] Nobody expects
> that a JSON parser will be parsing human-written input, [...]
Humans write JSON all the time. People use JSON as a configuration
language, and some people actually write JSON files by hand. A common
example would be writing package.js
On Apr 5, 5:00 am, Steven D'Aprano wrote:
> On Thu, 05 Apr 2012 11:06:11 +, Duncan Booth wrote:
> > Steven D'Aprano wrote:
>
> >> JSON expects double-quote marks, not single:
> >> v = json.loads("{'test':'test'}") fails v =
> >> json.loads('{"test":"test"}') succeeds
>
> > You mean
On Apr 5, 7:50 am, "Alex van der Spek" wrote:
> I do not understand why the spooled write gives an error. See below.
> The normal tempfile works just fine. They are supposed to behave equal?
>
> All insight you can provide is welcome.
> Alex van der Spek
>
> +++
On Apr 5, 8:23 am, Iain King wrote:
> A common one used to be expecting .sort() to return, rather than mutate (as
> it does). Same with .reverse() - sorted and reversed have this covered, not
> sure how common a gotcha it is any more.
>
The sort()/sorted() variations are good to cover. To giv
On Apr 5, 8:10 am, Steve Howell wrote:
> On Apr 5, 7:50 am, "Alex van der Spek" wrote:
>
>
>
>
>
>
>
>
>
> > I do not understand why the spooled write gives an error. See below.
> > The normal tempfile works just fine. They are supposed t
On Apr 5, 6:03 pm, Steven D'Aprano wrote:
> On Thu, 05 Apr 2012 23:08:11 +0200, André Malo wrote:
> > * Steven D'Aprano wrote:
>
> >> For a 21st century programming language or data format to accept only
> >> one type of quotation mark as string delimiter is rather like having a
> >> 21st century
One of the biggest nuisances for programmers, just beneath date/time
APIs in the pantheon of annoyances, is that we are constantly dealing
with escaping/encoding/formatting issues.
I wrote this little program as a cheat sheet for myself and others.
Hope it helps.
# escaping quotes
legal_strin
On Apr 5, 9:28 pm, rusi wrote:
> On Apr 5, 4:06 pm, Duncan Booth wrote:
>
> > Steven D'Aprano wrote:
> > > JSON expects double-quote marks, not single:
> > > v = json.loads("{'test':'test'}") fails
> > > v = json.loads('{"test":"test"}') succeeds
>
> > You mean JSON expects a string wi
On Apr 5, 9:59 pm, rusi wrote:
> On Apr 6, 6:56 am, Steve Howell wrote:
>
> > One of the biggest nuisances for programmers, just beneath date/time
> > APIs in the pantheon of annoyances, is that we are constantly dealing
> > with escaping/encoding/formatting issues.
>
On Apr 5, 9:59 pm, rusi wrote:
> On Apr 6, 6:56 am, Steve Howell wrote:
>
> > One of the biggest nuisances for programmers, just beneath date/time
> > APIs in the pantheon of annoyances, is that we are constantly dealing
> > with escaping/encoding/formatting issues.
>
On Apr 5, 10:36 pm, rusi wrote:
> On Apr 6, 9:54 am, Steve Howell wrote:
>
> > JS, YAML, and HTML are pretty similar to Python with respect to single
> > vs. double, as far as I know/remember/care.
>
> [Complete ignoramus here -- writing after a few minutes of googling]
On Apr 15, 2:07 pm, Kiuhnm wrote:
> This is the behavior I need:
> path = path.replace('\\', '')
> msg = ". {} .. '{}' .. {} .".format(a, path, b)
> Is there a better way?
>
A little more context would help. The quadruple-toothpick idiom
predates Python. It's a little hard on the
On Apr 20, 8:01 pm, Roy Smith wrote:
> In article <4f921a2d$0$29965$c3e8da3$54964...@news.astraweb.com>,
> Steven D'Aprano wrote:
>
>
>
>
>
>
>
>
>
> > On Fri, 20 Apr 2012 09:41:25 -0400, Roy Smith wrote:
>
> > > In article <4f910c3d$0$29965$c3e8da3$54964...@news.astraweb.com>,
> > > Steven D'A
cussing this here, I'm happy to follow up on any questions.
Thanks,
Steve
P.S. I've already found some good information via Google, but there's
a lot of noise out there.
--
http://mail.python.org/mailman/listinfo/python-list
On May 2, 7:46 pm, Paul Rubin wrote:
> Steve Howell writes:
> > keys are file paths
> > directories are 2 levels deep (30 dirs w/100k files each)
> > values are file contents
> > The current solution isn't horrible,
>
> Yes it is ;-)
> > As I
On May 2, 8:29 pm, Paul Rubin wrote:
> Steve Howell writes:
> > Thanks. That's definitely in the spirit of what I'm looking for,
> > although the non-64 bit version is obviously geared toward a slightly
> > smaller data set. My reading of cdb is that it has essen
On May 2, 11:48 pm, Paul Rubin wrote:
> Paul Rubin writes:
> >looking at the spec more closely, there are 256 hash tables.. ...
>
> You know, there is a much simpler way to do this, if you can afford to
> use a few hundred MB of memory and you don't mind some load time when
> the program first st
On May 3, 1:42 am, Steve Howell wrote:
> On May 2, 11:48 pm, Paul Rubin wrote:
>
> > Paul Rubin writes:
> > >looking at the spec more closely, there are 256 hash tables.. ...
>
> > You know, there is a much simpler way to do this, if you can afford to
> > us
On May 3, 9:38 pm, Paul Rubin wrote:
> Steve Howell writes:
> > My test was to write roughly 4GB of data, with 2 million keys of 2k
> > bytes each.
>
> If the records are something like english text, you can compress
> them with zlib and get some compression gain by p
On May 3, 11:03 pm, Paul Rubin wrote:
> Steve Howell writes:
> > Sounds like a useful technique. The text snippets that I'm
> > compressing are indeed mostly English words, and 7-bit ascii, so it
> > would be practical to use a compression library that just use
On May 3, 11:59 pm, Paul Rubin wrote:
> Steve Howell writes:
> > compressor = zlib.compressobj()
> > s = compressor.compress("foobar")
> > s += compressor.flush(zlib.Z_SYNC_FLUSH)
>
> > s_start = s
> > compressor2 = compres
On May 4, 1:01 am, Paul Rubin wrote:
> Steve Howell writes:
> > Makes sense. I believe I got that part correct:
>
> > https://github.com/showell/KeyValue/blob/master/salted_compressor.py
>
> The API looks nice, but your compress method makes no sense. Why do you
>
On May 3, 6:10 pm, Miki Tebeka wrote:
> > I'm looking for a fairly lightweight key/value store that works for
> > this type of problem:
>
> I'd start with a benchmark and try some of the things that are already in the
> standard library:
> - bsddb
> - sqlite3 (table of key, value, index key)
> -
On May 6, 10:21 pm, John Nagle wrote:
> On 5/4/2012 12:14 AM, Steve Howell wrote:
>
> > On May 3, 11:59 pm, Paul Rubin wrote:
> >> Steve Howell writes:
> >>> compressor = zlib.compressobj()
> >>> s = compressor.compress("foobar&qu
>> to complex database interfaces.
>
> > dbm and shelve are extremely simple to use. Using the file system for a
> > million item db is ridiculous even for prototyping.
>
> Right. Steve Bellovin wrote that back when UNIX didn't have any
> database programs, let al
On May 8, 1:05 pm, John Gordon wrote:
> I'm trying to come up with a scheme for organizing exceptions in
> my application.
>
> Currently, I'm using a base class which knows how to look up the text
> of a specific error in a database table, keyed on the error class name.
>
> The base class looks li
Brand-new to Python (that's a warning, folks)
Trying to write a routine to import a CSV file into a SQL Server
table. To ensure that I convert the data from the CSV appropriately,
I"m executing a query that gives me the schema (data column names,
data types and sizes) from the target table.
What
x27;]['size'] # -> 200
table_dict['Artist']['size'] #-> 50
Is this (nesting dictionaries) a good way to store multiple attributes
associated with a single key value?
On Mon, 14 May 2012 17:05:17 + (UTC), John Gordon
wrote:
>In Steve Sawyer
> writes
Thanks, James, but John Gordon identified my usage error so I'm good
to go now.
On Mon, 14 May 2012 09:28:06 -0700 (PDT), james hedley
wrote:
>On Monday, 14 May 2012 17:01:49 UTC+1, Steve Sawyer wrote:
>> Brand-new to Python (that's a warning, folks)
>>
>> Tryi
Seems to work using 2.7 but not 3.2. On 3.2 it just closes all my python
sessions. Is this a bug? Can someone point me to a "How To" on using a local
printer in windows?
Thanks!
--
http://mail.python.org/mailman/listinfo/python-list
On Mon, 6 Jun 2011 12:15:35 -0400, Jabba Laci wrote in
Message-Id: :
> solo = 'Han Solo'
> jabba = 'Jabba the Hutt'
> print "{solo} was captured by {jabba}".format(solo=solo, jabba=jabba)
> # Han Solo was captured by Jabba the Hutt
How about:-
print "%s was captured by %s" % (solo, jabba)
--
ht
Thanks Gabriel!
Do you know where any documentation is on printing to a local printer for 3.2?
I've found Hammond's and Golden's info for win32, but haven't seen if it works
for 3.2.
Again thank you for your reply and submitting the bug.
--
Steve Oldner
-Origin
Hi all,
I've always done key creation/incrementation using:
if key in dict:
dict[key] += 1
else:
dict[key] = 1
Today I spotted an alternative:
dict[key] = dict.get(key, 0) + 1
Whilst certainly more compact, I'd be interested in views on how
pythonesque this method is.
--
http://mail.p
On Tue, 14 Jun 2011 05:37:45 -0700 (PDT), AlienBaby wrote in
Message-Id: <078c5e9a-8fad-4d4c-b081-f69d0f575...@v11g2000prk.googlegroups.com>:
> How do those methods compare to the one I normally use;
>
> try:
> dict[key]+=1
> except:
> dict[key]=1
This is a lot slower in percentage terms. You
On Tue, 14 Jun 2011 13:16:47 +0200, Peter Otten wrote in
Message-Id: :
> Your way is usually faster than
>
>> dict[key] = dict.get(key, 0) + 1
Thanks Peter, ran it through Timeit and you're right. It's probably also
easier to read the conditional version, even if it is longer.
> You may also c
dth student would be abused and
the thousandth murdered).
So I wondered if anyone had any good ideas.
regards
Steve
--
Steve Holden
st...@holdenweb.com
--
http://mail.python.org/mailman/listinfo/python-list
Haven't had much Cc input so far, but this one is definitely worth following up
on. Thanks!
regards
Steve
On Aug 4, 2011, at 5:42 PM, Eric Snow wrote:
> On Wed, Aug 3, 2011 at 9:14 PM, Steve Holden wrote:
>> [Ccs appreciated]
>> After some three years labor I (@holdenweb)
ple all the time doesn't mean its
not worthwhile.
--
Steve
“Cheer up,” they said, “things could be worse.” So I cheered up, and sure
enough, things got worse.
--
https://mail.python.org/mailman/listinfo/python-list
ot allowed in
> German? If so, that's very different from English.
Germans use ALLCAPS for headlines, book titles, emphasis etc just as English
speakers do. For example: http://www.spiegel.de/politik/index.html
--
Steve
“Cheer up,” they said, “things could be worse.” So I cheered up, and sure
enough, things got worse.
--
https://mail.python.org/mailman/listinfo/python-list
t; # continues on for millions more characters
does the interpreter make a copy of the 100MB string?
If not, then it isn't pass (call) by value.
--
Steve
“Cheer up,” they said, “things could be worse.” So I cheered up, and sure
enough, things got worse.
--
https://mail.python.org/mailman/listinfo/python-list
On Sat, 2 Sep 2017 01:48 pm, Stefan Ram wrote:
> Steve D'Aprano writes:
>>[1] I believe that the German government has now officially recognised the
>>uppercase form of ß.
>
> [skip to the last paragraph for some "ß" content,
> unless you want to r
by immutability? Pass the salt?
My understanding is that LISP has more-or-less the same calling mechanism as
Python, only it had it long before Barbara Liskov gave a name to it when
describing CLU.
[1] What, only one? *wink*
--
Steve
“Cheer up,” they said, “things could be worse.” So I c
x27;s just understood. Nevertheless, terms such
> as "object reference" and "reference to an object" do
> get used in relation to Python when clarity is needed.
Certainly they do. That has nothing to do with the question of whether Python
has references as values.
We use t
e same one?
> As Peter pointed out this is a no-op
> ie
> [p for p in sys.path]
>
> could be written as
> list(sys.path)
That's not what "no-op" means. If it returns a result, it isn't a no-op.
> [Not sure why he didnt say just sys.path]
Because sys.path re
uot;third-class" even makes sense, but pointers, and
references, are not values of *any* class in Python.
--
Steve
“Cheer up,” they said, “things could be worse.” So I cheered up, and sure
enough, things got worse.
--
https://mail.python.org/mailman/listinfo/python-list
about assignment talks about reference counts.
Does that mean that IronPython and Jython aren't implementations of Python? They
have no reference counts.
--
Steve
“Cheer up,” they said, “things could be worse.” So I cheered up, and sure
enough, things got worse.
--
https://mail.python.org/mailman/listinfo/python-list
On Mon, 4 Sep 2017 01:31 pm, Stefan Ram wrote:
> Steve D'Aprano writes:
>>That makes arrays (and strings) in C a bit of an odd corner case, and an
>>exception to the usual rules, like unboxed machine types in Java. We should
>>acknowledge them, but as exceptional case
r-passing-nomenclature arguments are just
> the fallout of that.
This is not a dispute unique to the Python community. Similar arguments take
place in the Java and Ruby communities, and I daresay many others.
--
Steve
“Cheer up,” they said, “things could be worse.” So I cheered up, and sur
On Tue, 5 Sep 2017 12:09 am, Antoon Pardon wrote:
> Op 04-09-17 om 15:26 schreef Steve D'Aprano:
>> On Mon, 4 Sep 2017 08:52 pm, Antoon Pardon wrote:
>>
>>> Op 04-09-17 om 12:22 schreef Stefan Ram:
>>>> Rustom Mody writes:
>>>>>>
On Mon, 4 Sep 2017 11:30 pm, Antoon Pardon wrote:
> Op 04-09-17 om 15:24 schreef Steve D'Aprano:
>> I accept that many people dislike, or do not understand, conceptual models
>> where objects can be in more than one location at once. For many people,
>> dropping i
rn self
and attempts to bind the return result to the target:
temp = t[0].__iadd__([999])
t[0] = temp
The assignment is necessary to support types like tuples, ints, strings etc.
which don't perform an in-place modification.
--
Steve
“Cheer up,” they said, “things could be worse.” So I cheered up, and sure
enough, things got worse.
--
https://mail.python.org/mailman/listinfo/python-list
On Tue, 5 Sep 2017 12:59 am, Rustom Mody wrote:
> On Monday, September 4, 2017 at 7:50:39 PM UTC+5:30, Steve D'Aprano wrote:
>> On Mon, 4 Sep 2017 01:11 pm, Rustom Mody wrote:
>> > Simply put: pythonistas have no coherent/consistent sense of what python
>> > value
-- but I don't see the point of it. What conclusion do you draw
from that?
--
Steve
“Cheer up,” they said, “things could be worse.” So I cheered up, and sure
enough, things got worse.
--
https://mail.python.org/mailman/listinfo/python-list
On Tue, 5 Sep 2017 02:51 am, Stefan Ram wrote:
> Steve D'Aprano writes:
>>Sorry Stefan, that is the same trap that many others fall into. You are
>>assuming that there are exactly two evaluation conventions:
>>- pass by reference
>>- pass by value
>>and so
aid the opposite?
[...]
> People prefer to give the implementation of comprehensions
> rather than giving the connection to its parent notion+notation which in
> all probability the OP knows and is simply unable to connect because of
> clunkyness of ASCII-fied syntax
You have no evi
; The default passing mechanism would be similar to the description of C#
> ("boxed" types being implicit copies of references allowing mutation
> in-place, but assignment to the parameter itself has no effect on the
> caller). I suspect it too has some means to explicitly produce a
> by-reference parameter.
>
> Python... does not have this dichotomy of "simple" and "reference"
> types -- everything is a "reference" type but may be immutable or mutable;
> mutable can be modified in-place, immutables can not be modified.
> Assignment to a parameter name replaces the object locally, with no effect
> on the argument provided by the caller. There is no provision to expose a
> reference (to a reference) nor to dereference any thing.
--
Steve
“Cheer up,” they said, “things could be worse.” So I cheered up, and sure
enough, things got worse.
--
https://mail.python.org/mailman/listinfo/python-list
ed trouble
>
> Now I found the following in the logs: [Errno 131] Connection reset by peer
>
> This is a problem I would like to catch earlier however I have no idea what
> exception I would have to catch in order to treat this case.
try:
do_stuff
except Exception as err:
p
nability to refer to the reference itself, the lack of references to
references, and the inability to have a container of references, makes them
second-class values -- or possibly not values at all.
(I don't know enough about C++ to distinguish between the last two opinions, but
I'm stron
On Tue, 5 Sep 2017 11:08 pm, Stefan Ram wrote:
> Steve D'Aprano writes:
>>[quote]
>>The mistake they make is in the definition of
>>Figure 7: (Java) Defining a Dog pointer
>>Dog d;
>>itself. When you write that definition, you are defining a pointer to a
On Tue, 5 Sep 2017 11:47 pm, Gregory Ewing wrote:
> Steve D'Aprano wrote:
>> [quoting Scott Stanchfield]
>> Figure 7: (Java) Defining a Dog pointer
>> Dog d;
>>
>> When you write that definition, you are defining a pointer to a Dog
atical expression. (That's not a dot product.)
> What were Turing, Church, von Neumann, even Knuth by training? Mathematicians
> or CS-ists?
>
> And what are the contributions of Turing, Church, von Neumann, Knuth to CS?
Who cares? We're talking about Python, not Computer Scien
;s good style.
It is true that in general we don't write ordinary prose in all caps, there are
plenty of non-kook uses for it. But speaking of capitals on the Internet:
HI EVERYBODY!!
try pressing the the Caps Lock key
O THANKS!!! ITS SO MUCH EASIER TO WRITE NOW!!!
fuck me
http://bash.org/?835030
--
Steve
“Cheer up,” they said, “things could be worse.” So I cheered up, and sure
enough, things got worse.
--
https://mail.python.org/mailman/listinfo/python-list
On Tue, 5 Sep 2017 11:11 pm, Gregory Ewing wrote:
> Steve D'Aprano wrote:
>> The third entity is the reference linking the name to the object (the arrow).
>> This isn't a runtime value in Python, nor is it a compile time entity that
>> exists in source code. It is p
ly seems
> strange when someone like Dijkstra grumbles at the anthropomorphism and asks
> why its not called 'store'.
And if it were called "store" (grocery store? shoe store? clothes store?)
Dijkstra would have grumbled at the metaphor and asked why it wasn't
called &q
ct directory, and the full
contents of sys.path.
Do not try to retype them from memory. Accuracy is essential: copy and paste the
paths so that they are accurate.
Thank you.
--
Steve
“Cheer up,” they said, “things could be worse.” So I cheered up, and sure
enough, things got worse.
--
https
ent2(p: intpointer);
begin
p^ := p^ + 1
end;
var
a: integer;
b: integer;
begin
a := 99;
increment(a);
writeln(a); {will print 100}
b := 99;
increment2(@b);
writeln(b); {will print 100}
end.
If there's a difference, its a subtle one which I haven't found in a short
amount of testing.
--
Steve
“Cheer up,” they said, “things could be worse.” So I cheered up, and sure
enough, things got worse.
--
https://mail.python.org/mailman/listinfo/python-list
On Wed, 6 Sep 2017 10:11 pm, Rustom Mody wrote:
> On Wednesday, September 6, 2017 at 5:08:20 PM UTC+5:30, Steve D'Aprano wrote:
>> On Wed, 6 Sep 2017 07:13 pm, Rustom Mody wrote:
>>
>>
>> > Can you explain what "id" and "is" without talking
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