Mayank,
Thanks. I have only been using Python for about four years, so there are
features I have only recently discovered. Decorators are one of them. So
far, I encounter other Python users who are also unfamiliar with them.
When I discovered them, I instantly saw how they could be valuable.
Tim Chase :
> And decorators are used pretty regularly in just about every code-base
> that I've touched (I've been programming in Python since early 2004,
> so I've maintained pre-2.4 code without decorators and then brought it
> forward to 2.4 where decorators were usable).
Funny. My experience
On 14Nov2014 18:42, Empty Account wrote:
I am thinking about writing a load test tool in Python, so I am interested
in how I can create the most concurrent threads/processes with the fewest
OS resources. I would imagine that I/O would need to be non-blocking.
There are a number of options inclu
On 14Nov2014 19:01, pythonista wrote:
I am developing a python application as a contractor.
I would like to know if someone can provide me with some insight into the
problems that then infrastructure team has been having.
The scope of the project was to install python 2.7.8 and 4 modules/site
On Sat, Nov 15, 2014 at 2:01 PM, pythonista
wrote:
> The scope of the project was to install python 2.7.8 and 4 modules/site
> packages on a fresh linux build.
>
> The first team failed after almost 3 weeks of work.
>
> Then they put their star Linux administrator on the task and it took almost
On 2014-11-14 18:19, Richard Riehle wrote:
> Decorators are new in Python, so there are not a lot of people
> using them.
Um...they were introduced in 2.4 which was released in late 2004. So
they've only been around for about (almost exactly) a decade. Not
sure that qualifies as "new in Python"
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1
On 11/14/2014 06:58 PM, Steven D'Aprano wrote:
> Ethan Furman wrote:
>>
>> My point being: a safety net that is so easily disabled does not count
>> (IMHO) as a backup.
>
> Assertions are not a backup or a safety net. [...]
Would you be happier if
On 14Nov2014 09:51, Ian Kelly wrote:
On Fri, Nov 14, 2014 at 12:36 AM, Cameron Simpson wrote:
On 13Nov2014 15:48, satishmlm...@gmail.com wrote:
import sys
for stream in (sys.stdin, sys.stdout, sys.stderr):
print(stream.fileno())
io.UnsupportedOperation: fileno
Is there a workaroun
I am developing a python application as a contractor.
I would like to know if someone can provide me with some insight into the
problems that then infrastructure team has been having.
The scope of the project was to install python 2.7.8 and 4 modules/site
packages on a fresh linux build.
The f
Ethan Furman wrote:
> -BEGIN PGP SIGNED MESSAGE-
> Hash: SHA1
>
> On 11/14/2014 03:33 AM, Steven D'Aprano wrote:
>>
>> I agree with Marko in this case. Marko's example of defensive programming
>> is very similar to the one I gave in my essay here:
>>
>> http://import-that.dreamwidth.org
Decorators were there in Python 2.4, released in 2005. Not exactly new.
On Sat Nov 15 2014 at 7:51:11 AM Richard Riehle wrote:
> On Friday, November 14, 2014 2:18:48 PM UTC-8, Marko Rauhamaa wrote:
> > Richard Riehle :
> >
> > > I find that not a lot of Python user really appreciate the power of
On Friday, November 14, 2014 2:18:48 PM UTC-8, Marko Rauhamaa wrote:
> Richard Riehle :
>
> > I find that not a lot of Python user really appreciate the power of
> > decorators.
>
> Well, I don't.
>
> All it means is that I've never seen a use of decorators that has
> enhanced the code. Once I "
On Sat, Nov 15, 2014 at 1:14 PM, Tim Chase
wrote:
> On 2014-11-15 12:48, Chris Angelico wrote:
>> conn = establish_database_connection()
>> try:
>> do_stuff()
>> finally:
>> conn.rollback()
>
> this sounds suspiciously like you'd never actually commit. Do you
> mean something like
>
> c
On 2014-11-15 12:48, Chris Angelico wrote:
> conn = establish_database_connection()
> try:
> do_stuff()
> finally:
> conn.rollback()
this sounds suspiciously like you'd never actually commit. Do you
mean something like
conn = establisth_database_connection()
try:
do_stuff(conn)
On Sat, Nov 15, 2014 at 12:30 PM, Marko Rauhamaa wrote:
> Chris Angelico :
>
>> On Sat, Nov 15, 2014 at 11:12 AM, Marko Rauhamaa wrote:
>>> Most importantly, assertion failures are not supposed to be recovered
>>> from (within the program). Assertion failures can result in the loss
>>> of life an
Chris Angelico :
> On Sat, Nov 15, 2014 at 11:12 AM, Marko Rauhamaa wrote:
>> Most importantly, assertion failures are not supposed to be recovered
>> from (within the program). Assertion failures can result in the loss
>> of life and limb. They can result in database corruption. They can
>> resu
On Sat, Nov 15, 2014 at 11:12 AM, Marko Rauhamaa wrote:
> Most importantly, assertion failures are not supposed to be recovered
> from (within the program). Assertion failures can result in the loss of
> life and limb. They can result in database corruption. They can result
> in monetary losses. T
Steven D'Aprano :
> Marko Rauhamaa wrote:
>
>> Asserts are not about notification, checking or optimization. They are
>> about communicating what's going on in the programmer's mind. They are
>> comments.
>
> Assertions can be used for *all of these things*.
>
> Assertions can be used for:
>
> - c
On 11/14/2014 5:17 PM, Richard Riehle wrote:
In C, C++, Ada, and functional languages, I can create an array of
functions, albeit with the nastiness of pointers in the C family.
For example, an array of functions where each function is an active
button, or an array of functions that behave like f
Marko Rauhamaa wrote:
> Asserts are not about notification, checking or optimization. They are
> about communicating what's going on in the programmer's mind. They are
> comments.
Assertions can be used for *all of these things*.
Assertions can be used for:
- checking internal program logic;
-
On 2014-11-14 22:17, Richard Riehle wrote:
In C, C++, Ada, and functional languages, I can create an array of
functions, albeit with the nastiness of pointers in the C family.
For example, an array of functions where each function is an active
button, or an array of functions that behave like for
On Fri, Nov 14, 2014 at 3:17 PM, Richard Riehle wrote:
> In C, C++, Ada, and functional languages, I can create an array of functions,
> albeit with the nastiness of pointers in the C family. For example, an
> array of functions where each function is an active button, or an array of
> functi
Mark Lawrence :
> Perhaps this helps
> http://blog.dscpl.com.au/2014/01/how-you-implemented-your-python.html ?
Thanks, but sorry, it didn't. I couldn't even relate to the supposed
WSGI craze.
I'm yet to face the situation where a colleague would point out, "See
how elegantly you could have done
I second the call for a more concrete implementation, but if you want the
results of the functions in c3 to be responsive to the values of c1 and c2
(i.e., if you change r1c1, r1c3 returns a different value), it might be worth
encapsulating the whole thing in an object and making the c3 function
On 14/11/2014 22:18, Marko Rauhamaa wrote:
Richard Riehle :
I find that not a lot of Python user really appreciate the power of
decorators.
Well, I don't.
All it means is that I've never seen a use of decorators that has
enhanced the code. Once I "see the light," I'll have no problem changin
Richard Riehle :
> Example:
>
> r1c1 r1c2 r1c3
> r2c1 r2c2 r2c3
> r3c1 r3c2 r3c3
>
> where r1 is row 1 and c1 is column 1. Suppose I want an array where the
> colum three is a set of functions that operates on the other two
> columns, depending on the v
Richard Riehle :
> I find that not a lot of Python user really appreciate the power of
> decorators.
Well, I don't.
All it means is that I've never seen a use of decorators that has
enhanced the code. Once I "see the light," I'll have no problem changing
my view.
Marko
--
https://mail.python.
In C, C++, Ada, and functional languages, I can create an array of functions,
albeit with the nastiness of pointers in the C family. For example, an array
of functions where each function is an active button, or an array of functions
that behave like formulae in a spreadsheet. I am finding th
On Tuesday, November 11, 2014 11:41:06 AM UTC-8, Peter Cacioppi wrote:
> I get the impression that most Pythonistas aren't as habituated with assert
> statements as I am. Is that just a misimpression on my part? If not, is there
> a good reason to assert less with Python than other languages?
>
On 11/14/2014 10:11 AM, ast wrote:
Hello
In module wave there is a sub module struct.
struct is not a documented part of the wave module.
You can call function pack() with:
import wave
val = wave.struct.pack(...)
wave imports several other stdlib modules. All are accessible the same
way.
Ethan Furman :
> Python the language is just the opposite: debug mode is on /by
> default/, and to turn it off you have to specify -O:
C's the same way.
When I did Java, we enabled assertions in production code.
Marko
--
https://mail.python.org/mailman/listinfo/python-list
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1
On 11/14/2014 11:12 AM, Marko Rauhamaa wrote:
> Ethan Furman wrote:
>
>> My point being: a safety net that is so easily disabled does not count
>> (IMHO) as a backup.
>
> Correct. You never lean on assertions. They are primarily formal comments.
On
On Thursday, November 13, 2014 3:22:49 PM UTC-8, Anurag wrote:
> On Thursday, November 13, 2014 2:18:50 PM UTC-5, sohca...@gmail.com wrote:
> > On Thursday, November 13, 2014 10:07:56 AM UTC-8, Anurag wrote:
> > > I am having trouble understanding the Multiprocessing module.
> > > I need to run thr
Hi,
I am thinking about writing a load test tool in Python, so I am interested
in how I can create the most concurrent threads/processes with the fewest
OS resources. I would imagine that I/O would need to be non-blocking.
There are a number of options including standard library threading, gevent
Ethan Furman :
> My point being: a safety net that is so easily disabled does not count
> (IMHO) as a backup.
Correct. You never lean on assertions. They are primarily formal
comments.
However, assertion failures do help in troubleshooting occasionally.
Most importantly, they immediately, unques
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1
On 11/14/2014 03:33 AM, Steven D'Aprano wrote:
>
> I agree with Marko in this case. Marko's example of defensive programming is
> very similar to the one I gave in my
> essay here:
>
> http://import-that.dreamwidth.org/676.html
>
> You're correct o
"Peter Otten" <__pete...@web.de> a écrit dans le message de
news:mailman.15823.1415983912.18130.python-l...@python.org...
Do you see the pattern? You should ;)
Understood
thx
--
https://mail.python.org/mailman/listinfo/python-list
On Fri, Nov 14, 2014 at 4:37 AM, Steven D'Aprano
wrote:
> Ethan Furman wrote:
>
>>> There's no way to make the CONFUSED status be handled without actually
>>> changing the code. The difference is that this version will not
>>> incorrectly treat CONFUSED as WARNING; it just won't do anything at
>>>
On Fri, Nov 14, 2014 at 12:36 AM, Cameron Simpson wrote:
> On 13Nov2014 15:48, satishmlm...@gmail.com wrote:
>>
>> import sys
>> for stream in (sys.stdin, sys.stdout, sys.stderr):
>> print(stream.fileno())
>>
>>
>> io.UnsupportedOperation: fileno
>>
>> Is there a workaround?
>
>
> The f
On 14/11/2014 2:18 pm, maurog wrote:
I looked at the newsgroup, but I didn't find recent infos on this
topic.
On the other side I went lost by looking for this topic with google. So
I'm asking you my question, if I want to develop or run some code with
python on android, what are the resources t
ast wrote:
> In module wave there is a sub module struct.
> You can call function pack() with:
>
> import wave
> val = wave.struct.pack(...)
>
> but the same function can be called with:
>
> import struct
> val = struct.pack(...)
>
> Is it exactly the same module in both location ?
You can an
On Sat, Nov 15, 2014 at 2:11 AM, ast wrote:
> In module wave there is a sub module struct.
> You can call function pack() with:
>
> import wave
> val = wave.struct.pack(...)
>
> but the same function can be called with:
>
> import struct
> val = struct.pack(...)
>
> Is it exactly the same module i
Hello
In module wave there is a sub module struct.
You can call function pack() with:
import wave
val = wave.struct.pack(...)
but the same function can be called with:
import struct
val = struct.pack(...)
Is it exactly the same module in both location ?
Why putting struct in two places ?
maurog Wrote in message:
> I looked at the newsgroup, but I didn't find recent infos on this topic.
> On the other side I went lost by looking for this topic with google. So
> I'm asking you my question, if I want to develop or run some code with
> python on android, what are the resources to s
You can try Kivy. http://kivy.org
On Fri Nov 14 2014 at 7:51:08 PM maurog wrote:
> I looked at the newsgroup, but I didn't find recent infos on this topic.
> On the other side I went lost by looking for this topic with google. So
> I'm asking you my question, if I want to develop or run some cod
I looked at the newsgroup, but I didn't find recent infos on this topic.
On the other side I went lost by looking for this topic with google. So
I'm asking you my question, if I want to develop or run some code with
python on android, what are the resources to start with?
Thanks
mauro
--
http
Hi,
I want to write authentication by txjson,
Please help me in this way.
--
https://mail.python.org/mailman/listinfo/python-list
Hi,
I want to write authentication with txjson-rpc.
please guide me in this method!
best Regards,
Ali Hallaji
--
https://mail.python.org/mailman/listinfo/python-list
Islam prohibited women to be Unveiledwhy?
Are there any harmful effects on women if they used to display parts of their
body? Let us read.
According to the latest figures, the incidence of melanoma, a potentially fatal
skin cancer, is increasing dramatically. It is currently
On Fri, Nov 14, 2014 at 8:59 AM, Nobody wrote:
> On Thu, 13 Nov 2014 15:48:32 -0800, satishmlmlml wrote:
>
>> import sys
>> for stream in (sys.stdin, sys.stdout, sys.stderr):
>>print(stream.fileno())
>>
>>
>> io.UnsupportedOperation: fileno
>>
>> Is there a workaround?
>
> Try:
>
On Thu, 13 Nov 2014 15:48:32 -0800, satishmlmlml wrote:
> import sys
> for stream in (sys.stdin, sys.stdout, sys.stderr):
>print(stream.fileno())
>
>
> io.UnsupportedOperation: fileno
>
> Is there a workaround?
Try:
sys.stdin.buffer.fileno()
or maybe
sys.stdin
It's been answered here:
http://stackoverflow.com/questions/26924045/python-3-x-beazley-context-vs-
cause-attributes-in-exception-handling?noredirect=1#comment42403467_26924045
--
https://mail.python.org/mailman/listinfo/python-list
On Fri, Nov 14, 2014 at 6:57 AM, wrote:
> For 'mimetypes' in the code given below, python is giving the following
> error. Kindly help.
>
import os
matches = []
for (dirname, dirshere, fileshere) in os.walk(r'C:\Python34'):
> for filename in fileshere:
> if
For 'mimetypes' in the code given below, python is giving the following error.
Kindly help.
>>> import os
>>> matches = []
>>> for (dirname, dirshere, fileshere) in os.walk(r'C:\Python34'):
for filename in fileshere:
if filename.endswith('.py'):
pat
Ethan Furman wrote:
>> There's no way to make the CONFUSED status be handled without actually
>> changing the code. The difference is that this version will not
>> incorrectly treat CONFUSED as WARNING; it just won't do anything at
>> all if the code is optimized.
>
> So, a different wrong thing,
Am 14.11.2014 00:42 schrieb satishmlm...@gmail.com:
fileno() in not supported. Is it only in 3.1? What is the workaround?
You have been asked many times about the details of your environment.
Especially, you have been told that it is important to know if you
directly use the Python CLI or som
Ethan Furman wrote:
> On 11/12/2014 01:41 PM, Marko Rauhamaa wrote:
>>
>> Or I might indicate the exhaustion of possibilities:
>>
>> if status == OK:
>> ...
>> elif status == ERROR:
>> ...
>> else:
>> assert status == WARNING
>> ...
>
> An
Peter Cacioppi wrote:
> I get the impression that most Pythonistas aren't as habituated with
> assert statements as I am. Is that just a misimpression on my part? If
> not, is there a good reason to assert less with Python than other
> languages?
I love assert, and use it frequently. But there ar
On Fri, Nov 14, 2014 at 9:58 PM, Steven D'Aprano
wrote:
> http://blog.codinghorror.com/why-cant-programmers-program/
>
> Not everyone agrees that this is a thing:
>
> http://www.skorks.com/2010/10/99-out-of-100-programmers-cant-program-i-call-bullshit/
>
> I'm inclined to accept that maybe 99 out
Grant Edwards wrote:
> What the zipper on a coat does is convert two separate sequences into
> a single sequence where the members alternate between the two input
> sequences. IOW if we want to do something analogous to a zipper
> fastener it should do this:
>
> zip([a,b,c,d,e,f],[1,2,3,4,5,6])
Chris Angelico wrote:
> There are blog posts out there about how large proportions of
> applicants can't even write simple code on command... and I've taken
> the questions and shown them to my siblings (who protest that they're
> definitely not programmers), proving that a basic smattering of
> m
Noah wrote:
> I am trying to get a value back to IP using the netaddr python module.
> How do I get the value 'ip' back to IP format? how is it done?
>
> snip
>
> print IPNetwork(v4_peer_ip).value
> ip = IPNetwork(v4_peer_ip).value + 1
> print ip
>
> --- snip ---
>>> ip=n
On 2014-11-13, Rick Johnson wrote:
> On the other hand, if the author is not GvR, then he is most
> likely someone of great importance within the community.
As much as I love Python, I hate the amount of appeal to authority
that is present in the Python community.
Ok, GvR created Python, great.
On 13Nov2014 15:40, satishmlm...@gmail.com wrote:
import os
os.write(1, b'Hello descriptor world\n')
OSError: Bad file descriptor
How to give a file descriptor number to this function? How to get a file
descriptor number?
Wow, this must be at least the 4th post of the same question.
It now o
64 matches
Mail list logo
