Steven D'Aprano wrote:
It seems to me that weak typing is a Do What I Mean function, and DWIM is
a notoriously bad anti-pattern that causes far more trouble than it is
worth. I'm even a little suspicious of numeric coercions between integer
and float. (But only a little.)
I'm wondering about th
Dave Angel wrote:
time echo "scale = 1010; 16 * a(1/5) - 4 * a(1/239)" |bc -lq
Wouldn't it be shorter to say:
time echo "scale = 1010; 4 * a(1)" |bc -lq
Well, you can check it out by doing the math... (its fun...)
... you will notice that 'time' is called first, which on *nix systems
c
On Apr 25, 4:49 am, Robert Kern wrote:
> On 4/22/11 7:32 PM, Algis Kabaila wrote:
>
>
>
> > On Saturday 23 April 2011 06:57:23 sturlamolden wrote:
> >> On Apr 20, 9:47 am, Algis Kabaila
> > wrote:
> >>> Are there any modules for vector algebra (three dimensional
> >>> vectors, vector addition, sub
On Sun, 24 Apr 2011 10:07:02 -0700, Ken Seehart wrote:
> On 4/24/2011 2:58 AM, Steven D'Aprano wrote:
[...]
>> Is this an accident of implementation, or can I trust that changing
>> function defaults in this fashion is guaranteed to work?
>
> This is documented in python 3, so I would expect it t
On 4/22/11 7:32 PM, Algis Kabaila wrote:
On Saturday 23 April 2011 06:57:23 sturlamolden wrote:
On Apr 20, 9:47 am, Algis Kabaila
wrote:
Are there any modules for vector algebra (three dimensional
vectors, vector addition, subtraction, multiplication
[scalar and vector]. Could you give me a re
On Sun, Apr 24, 2011 at 3:05 PM, nusrath ahmed wrote:
> I have written a python script for logging into a website. My script pulls
> up a browser page but does not log me in. Can any one suggest if I i am
> wrong in nay way,though the script is correct I am sure
>
> My script is as below
>
>
> ***
I have written a python script for logging into a website. My script pulls up a
browser page but does not log me in. Can any one suggest if I i am wrong in nay
way,though the script is correct I am sure
My script is as below
*
import cookielib
import
Gotta love that email latency. :-D
Ken
On 4/24/2011 2:47 PM, Daniel Kluev wrote:
On Mon, Apr 25, 2011 at 8:21 AM, Ken Seehart wrote:
Good point, Benjamin. I didn't think of testing on Jython before
answering. For practical purposes it's a really good idea to test obscure
features against all
On 4/24/2011 5:21 PM, Ken Seehart wrote:
Good point, Benjamin. I didn't think of testing on Jython before
answering. For practical purposes it's a really good idea to test
obscure features against all potential target platforms.
In this case, I would argue that**Benjamin's test demonstrates a bu
On Mon, Apr 25, 2011 at 8:21 AM, Ken Seehart wrote:
> Good point, Benjamin. I didn't think of testing on Jython before
> answering. For practical purposes it's a really good idea to test obscure
> features against all potential target platforms.
>
> In this case, I would argue that Benjamin's te
Oops, I must correct myself. Please ignore my previous post.
As Daniel points out, Writable is specified in the Python 3
documentation. Apparently I was reading the documentation with only my
right eye open, and the Writable tag fell on my blind spot.
I concur that this unambiguously implies
Good point, Benjamin. I didn't think of testing on Jython before
answering. For practical purposes it's a really good idea to test
obscure features against all potential target platforms.
In this case, I would argue that**Benjamin's test demonstrates a bug in
Jython.
One could counter by p
On Mon, Apr 25, 2011 at 6:34 AM, nusrath ahmed wrote:
> urlLogin =
> 'file:///C:/Documents%20and%20Settings/Fat/Desktop/New%20Folder/Login.html'
>
This is a file on your hard disk. You'll need to change the URL to
point to the actual login page on the actual web site.
Chris Angelico
--
http://m
I have written a python script for logging into a website. For the time being
I
have created a login page and a website which I want to log in. My script
pulls
up the login page but does not post the username and password and log me in.
It simple displays the login page. I wanted my scrip
On 4/21/2011 6:16 AM, Neil Cerutti wrote:
On 2011-04-20, John Nagle wrote:
Findall does something a bit different. It returns a list of
matches of the entire pattern, not repeats of groups within
the pattern.
Consider a regular expression for matching domain names:
kre = re.compi
On 4/24/2011 2:58 AM, Steven D'Aprano wrote:
Consider this in Python 3.1:
def f(a=42):
... return a
...
f()
42
f.__defaults__ = (23,)
f()
23
Is this an accident of implementation, or can I trust that changing
function defaults in this fashion is guaranteed to work?
This is documen
http://docs.python.org/dev/reference/datamodel.html
Callable types
...
Special attributes:
...
__defaults__A tuple containing default argument values for those
arguments that have defaults, or None if no arguments have a default
value Writable
I don't see any 'implementation detail' mark the
On Sun, Apr 24, 2011 at 5:58 AM, Steven D'Aprano
wrote:
> Consider this in Python 3.1:
>
>
def f(a=42):
> ... return a
> ...
f()
> 42
f.__defaults__ = (23,)
f()
> 23
>
>
> Is this an accident of implementation, or can I trust that changing
> function defaults in this fashio
On 4/24/2011 5:58 AM, Steven D'Aprano wrote:
Consider this in Python 3.1:
def f(a=42):
... return a
...
f()
42
f.__defaults__ = (23,)
f()
23
Is this an accident of implementation, or can I trust that changing
function defaults in this fashion is guaranteed to work?
Interesting que
On 24 avr, 05:10, harrismh777 wrote:
>
> I've been giving this some more thought. From the keyboard, all I am
> able to enter are character strings (not numbers). Presumably these are
> UTF-8 strings in python3. If I enter ...
In Python 3, input() returns a unicode, a sequence/table/array o
New Binaries of SuPy 1.6 Available
--
http://www.cosc.canterbury.ac.nz/greg.ewing/SuPy/
I have released two new builds of SuPy 1.6 for MacOSX:
MacOSX 10.6 (Snow Leopard) System Python 2.6
User Python 2.7
What is SuPy?
-
SuPy is a plugin f
Daniel Geržo wrote:
> On 23.4.2011 21:18, Thomas 'PointedEars' Lahn wrote:
>> Daniel Geržo wrote:
>>> [f = codecs.open(…, mode='rU', encoding='ascii') and f.newlines]
>>
>> […]
>> The only reason I can think of for this not working ATM comes from the
>> documentation, where it says that 'U' requir
Daniel Geržo wrote:
> Thomas 'PointedEars' Lahn wrote:
>> It is clear now that codecs.open() would not support universal newlines
>> from at least Python 2.6 forward as it is *documented* that it opens
>> files in *binary mode* only. The source code that I have posted shows
>> that it therefore a
On 01/-10/-28163 02:59 PM, harrismh777 wrote:
Cameron Simpson wrote:
| folks are not aware that 'bc' also has arbitrary precision floating
| point math and a standard math library.
Floating point math? I thought, historically at least, that bc is built
on dc (arbitrary precision integer math, r
Consider this in Python 3.1:
>>> def f(a=42):
... return a
...
>>> f()
42
>>> f.__defaults__ = (23,)
>>> f()
23
Is this an accident of implementation, or can I trust that changing
function defaults in this fashion is guaranteed to work?
--
Steven
--
http://mail.python.org/mailman/lis
On 24.4.2011 11:19, Thomas 'PointedEars' Lahn wrote:
It is clear now that codecs.open() would not support universal newlines from
at least Python 2.6 forward as it is *documented* that it opens files in
*binary mode* only. The source code that I have posted shows that it
therefore actively remov
Daniel Geržo wrote:
> On 24.4.2011 9:05, jmfauth wrote:
>> Use the io module.
>
> For the record, when I use io.open(file=self.path, mode="rt",
> encoding=enc)) as fobj:
>
> my tests are passing and everything seems to work fine.
>
> That indicates there is a bug with codecs module and universa
On Sat, 23 Apr 2011 22:10:47 -0500, harrismh777 wrote:
> I've been giving this some more thought. From the keyboard, all I am
> able to enter are character strings (not numbers). Presumably these are
> UTF-8 strings in python3. If I enter the character string 57 then
> python converts my ch
On 24.4.2011 9:05, jmfauth wrote:
Use the io module.
For the record, when I use io.open(file=self.path, mode="rt",
encoding=enc)) as fobj:
my tests are passing and everything seems to work fine.
That indicates there is a bug with codecs module and universal newline
support.
--
S pozdrav
On Sun, Apr 24, 2011 at 6:13 PM, Steven D'Aprano
wrote:
> suppose an implementation might choose to trade off memory for time,
> skipping string -> bignum conversations at the cost of doubling the
> memory requirements. But even if I grant you bignums, you have to do the
> same for floats. Re-impl
On Sun, 24 Apr 2011 11:35:28 +1000, Chris Angelico wrote:
> On Sun, Apr 24, 2011 at 10:42 AM, Steven D'Aprano
> wrote:
>> This is much like my experience with Apple's Hypertalk, where the only
>> data structure is a string. I'm very fond of Hypertalk, but it is
>> hardly designed with machine eff
On 23.4.2011 21:18, Thomas 'PointedEars' Lahn wrote:
Daniel Geržo wrote:
I need to detect the newline characters used in the file I am reading.
For this purpose I am using the following code:
def _read_lines(self):
with contextlib.closing(codecs.open(self.path, "rU")) as fobj:
On 23 avr, 22:25, Daniel Geržo wrote:
>
> Well I am doing this on:
> Python 2.7.1 (r271:86832, Mar 7 2011, 14:28:09)
> [GCC 4.2.1 (Apple Inc. build 5664)] on darwin
>
> So what do you guys advise me to do?
>
> --
Use the io module.
jmf
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