On 24/10/2012 10:32, wxjmfa...@gmail.com wrote:
Le mardi 23 octobre 2012 18:41:45 UTC+2, Ian a écrit :
On Tue, Oct 23, 2012 at 12:47 AM, wrote:
In any case, have you been following the progress of issue 16061?
There is a patch for the str.replace regression that you identified,
which resu
Le mardi 23 octobre 2012 18:41:45 UTC+2, Ian a écrit :
> On Tue, Oct 23, 2012 at 12:47 AM, wrote:
>
>
>
> In any case, have you been following the progress of issue 16061?
>
> There is a patch for the str.replace regression that you identified,
>
> which results in better performance across
On Tue, Oct 23, 2012 at 12:47 AM, wrote:
> The latest Python version is systematically slower
> than the previous ones as soon as one uses non "ascii
> strings".
No, it isn't. You've previously demonstrated a *microbenchmark* where
3.3 is slower than 3.2. This is a far cry from demonstrating t
On 23/10/2012 07:47, wxjmfa...@gmail.com wrote:
Why bother with speeed?
The latest Python version is systematically slower
than the previous ones as soon as one uses non "ascii
strings".
Python users are discussing "code optimizations" without
realizing the tool they are using, has killed itse
On 2012-10-23, wxjmfa...@gmail.com wrote:
> Why bother with speeed?
Because the differences between O(N), O(log(N)) and O(N ** 2)
operations are often relevant.
A Python string replace function experiencing a slow-down from
previous versions doesn't absolve me from making informed choices
of alg
Le mardi 23 octobre 2012 06:59:49 UTC+2, rusi a écrit :
> On Oct 22, 9:19 pm, rusi wrote:
>
> > On 10/21/2012 11:33 AM, Vincent Davis wrote:
>
> >
>
> > > I am looking for a good way to get every pair from a string. For example,
>
> > > input:
>
> > > x = 'apple'
>
> > > output
>
> > > 'ap'
On Oct 22, 9:19 pm, rusi wrote:
> On 10/21/2012 11:33 AM, Vincent Davis wrote:
>
> > I am looking for a good way to get every pair from a string. For example,
> > input:
> > x = 'apple'
> > output
> > 'ap'
> > 'pp'
> > 'pl'
> > 'le'
>
> Maybe zip before izip for a noob?
>
> >>> s="apple"
> >>> [a+
"apple"
... [s[i:i+2] for i in range(len(s)-1)]""",number=1)
0.0467379093170166
Regards
From: rusi
Date: 22 October 2012 17:19:35 IST
To: python-list@python.org
Subject: Re: get each pair from a string.
On 10/21/2012 11:33 AM, Vincent Davis wrote:
I am looking
On 10/21/2012 11:33 AM, Vincent Davis wrote:
> I am looking for a good way to get every pair from a string. For example,
> input:
> x = 'apple'
> output
> 'ap'
> 'pp'
> 'pl'
> 'le'
Maybe zip before izip for a noob?
>>> s="apple"
>>> [a+b for a,b in zip(s, s[1:])]
['ap', 'pp', 'pl', 'le']
>>>
--
On 10/21/2012 9:19 PM, Ian Foote wrote:
On 22/10/12 09:03, Emile van Sebille wrote:
So, as OP's a self confessed newbie asking about slicing, why provide an
example requiring knowledge of tee, enumerate, next and izip?
Because not only the newbie will read the thread? I for one was
interested
On 22/10/12 09:03, Emile van Sebille wrote:
So, as OP's a self confessed newbie asking about slicing, why provide an
example requiring knowledge of tee, enumerate, next and izip?
Because not only the newbie will read the thread? I for one was
interested to see all the different possible appro
To All,
I appreciate the range of answers and the time each of you take to think
about and answer my question. Whether or not I use them I find them all
educational.
Thanks again.
Vincent
On Mon, Oct 22, 2012 at 2:03 AM, Emile van Sebille wrote:
> On 10/21/2012 12:06 PM, Ian Kelly wrote:
>
>>
@vbr
Thats interesting. I would never have come up with that.
Vincent
On Sun, Oct 21, 2012 at 3:48 PM, Vlastimil Brom wrote:
> vbr
--
http://mail.python.org/mailman/listinfo/python-list
2012/10/21 Vincent Davis :
> I am looking for a good way to get every pair from a string. For example,
> input:
> x = 'apple'
> output
> 'ap'
> 'pp'
> 'pl'
> 'le'
>
> I am not seeing a obvious way to do this without multiple for loops, but
> maybe there is not :-)
> In the end I am going to what to
On 21 October 2012 19:33, Vincent Davis wrote:
> I am looking for a good way to get every pair from a string. For example,
> input:
> x = 'apple'
> output
> 'ap'
> 'pp'
> 'pl'
> 'le'
>
> I am not seeing a obvious way to do this without multiple for loops, but
> maybe there is not :-)
> In the end
On 10/21/2012 12:06 PM, Ian Kelly wrote:
On Sun, Oct 21, 2012 at 12:58 PM, Vincent Davis
wrote:
x = 'apple'
for f in range(len(x)-1):
print(x[f:f+2])
@Ian,
Thanks for that I was just looking in to that. I wonder which is faster I
have a large set of strings to process. I'll try some timin
On Sun, Oct 21, 2012 at 12:58 PM, Vincent Davis
wrote:
> x = 'apple'
> for f in range(len(x)-1):
> print(x[f:f+2])
>
> @Ian,
> Thanks for that I was just looking in to that. I wonder which is faster I
> have a large set of strings to process. I'll try some timings if I get a
> chance later tod
On 10/21/2012 11:51 AM, Ian Kelly wrote:
On Sun, Oct 21, 2012 at 12:33 PM, Vincent Davis
wrote:
I am looking for a good way to get every pair from a string. For example,
input:
x = 'apple'
output
'ap'
'pp'
'pl'
'le'
I am not seeing a obvious way to do this without multiple for loops, but
maybe
On 21/10/2012 19:33, Vincent Davis wrote:
I am looking for a good way to get every pair from a string. For example,
input:
x = 'apple'
output
'ap'
'pp'
'pl'
'le'
I am not seeing a obvious way to do this without multiple for loops, but
maybe there is not :-)
In the end I am going to what to get t
@Emile,
I feel a little stupid, in my mind it was more difficult than in reality.
x = 'apple'
for f in range(len(x)-1):
print(x[f:f+2])
@Ian,
Thanks for that I was just looking in to that. I wonder which is faster I
have a large set of strings to process. I'll try some timings if I get a
chan
On Sun, Oct 21, 2012 at 12:33 PM, Vincent Davis
wrote:
> I am looking for a good way to get every pair from a string. For example,
> input:
> x = 'apple'
> output
> 'ap'
> 'pp'
> 'pl'
> 'le'
>
> I am not seeing a obvious way to do this without multiple for loops, but
> maybe there is not :-)
Use
On 10/21/2012 11:33 AM, Vincent Davis wrote:
I am looking for a good way to get every pair from a string. For example,
input:
x = 'apple'
output
'ap'
'pp'
'pl'
'le'
I am not seeing a obvious way to do this without multiple for loops, but
maybe there is not :-)
In the end I am going to what to ge
I am looking for a good way to get every pair from a string. For example,
input:
x = 'apple'
output
'ap'
'pp'
'pl'
'le'
I am not seeing a obvious way to do this without multiple for loops, but
maybe there is not :-)
In the end I am going to what to get triples, quads... also.
Thanks
Vincent
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