On 12/02/2011 04:49, Terry Reedy wrote:
On 2/11/2011 4:24 PM, LL.Snark wrote:
Hi,
I'm looking for a pythonic way to translate this short Ruby code :
t=[6,7,8,6,7,9,8,4,3,6,7]
i=t.index {|x| x
What does Ruby do if there is no such element?
For Python, the answer should be either None or Value
Arnaud Delobelle writes:
> "LL.Snark" writes:
>
>> Hi,
>>
>> I'm looking for a pythonic way to translate this short Ruby code :
>> t=[6,7,8,6,7,9,8,4,3,6,7]
>> i=t.index {|x| x>
>
> In Python3:
>
t = [6,7,8,6,7,9,8,4,3,6,7]
next(filter(t[0].__gt__, t))
> 4
Oops! I realised my mistake
"LL.Snark" writes:
> Hi,
>
> I'm looking for a pythonic way to translate this short Ruby code :
> t=[6,7,8,6,7,9,8,4,3,6,7]
> i=t.index {|x| x
In Python3:
>>> t = [6,7,8,6,7,9,8,4,3,6,7]
>>> next(filter(t[0].__gt__, t))
4
--
Arnaud
--
http://mail.python.org/mailman/listinfo/python-list
On Feb 11, 1:24 pm, "LL.Snark" wrote:
> Hi,
>
> I'm looking for a pythonic way to translate this short Ruby code :
> t=[6,7,8,6,7,9,8,4,3,6,7]
> i=t.index {|x| x
> If you don't know Ruby, the second line means :
> What is the index, in array t, of the first element x such that x
> If can write it
On 11 fév, 22:24, "LL.Snark" wrote:
> Hi,
>
> I'm looking for a pythonic way to translate this short Ruby code :
> t=[6,7,8,6,7,9,8,4,3,6,7]
> i=t.index {|x| x1000), "not found")
or
next((i for i, x in enumerate(t) if x>1000), None)
or whatever matches your needs.
Note that if you use the second o
On 2/11/2011 4:24 PM, LL.Snark wrote:
Hi,
I'm looking for a pythonic way to translate this short Ruby code :
t=[6,7,8,6,7,9,8,4,3,6,7]
i=t.index {|x| x
What does Ruby do if there is no such element?
For Python, the answer should be either None or ValueError.
If can write it in python several
On 11/02/2011 22:24, LL.Snark wrote:
Hi,
I'm looking for a pythonic way to translate this short Ruby code :
t=[6,7,8,6,7,9,8,4,3,6,7]
i=t.index {|x| x=t[0] : i+=1
... not pythonic I think...
Or :
t=[6,7,8,6,7,9,8,4,3,6,7]
i=[j for j in range(len(t)) if t[j]
Thx for your answers.
May I add s
On Feb 11, 9:24 pm, "LL.Snark" wrote:
> Hi,
>
> I'm looking for a pythonic way to translate this short Ruby code :
> t=[6,7,8,6,7,9,8,4,3,6,7]
> i=t.index {|x| x
> If you don't know Ruby, the second line means :
> What is the index, in array t, of the first element x such that x
> If can write it
"LL.Snark" writes:
> I'm looking for a pythonic way to translate this short Ruby code :
> t=[6,7,8,6,7,9,8,4,3,6,7]
> i=t.index {|x| x=t[0], t).next()
Note the above can throw an exception if no suitable element is found.
t=[6,7,8,6,7,9,8,4,3,6,7]
i=[j for j in range(len(t)) if t[j]http
On Fri, Feb 11, 2011 at 1:51 PM, Dan Stromberg wrote:
> On Fri, Feb 11, 2011 at 1:43 PM, André Roberge
> wrote:
>> On Friday, February 11, 2011 5:24:15 PM UTC-4, LL.Snark wrote:
>>> Hi,
>>>
>>> I'm looking for a pythonic way to translate this short Ruby code :
>>> t=[6,7,8,6,7,9,8,4,3,6,7]
>>> i
On Fri, Feb 11, 2011 at 1:51 PM, Dan Stromberg wrote:
> On Fri, Feb 11, 2011 at 1:43 PM, André Roberge
> wrote:
> > On Friday, February 11, 2011 5:24:15 PM UTC-4, LL.Snark wrote:
> >> Hi,
> >>
> >> I'm looking for a pythonic way to translate this short Ruby code :
> >> t=[6,7,8,6,7,9,8,4,3,6,7]
On Feb 11, 2:24 pm, "LL.Snark" wrote:
> Hi,
>
> I'm looking for a pythonic way to translate this short Ruby code :
> t=[6,7,8,6,7,9,8,4,3,6,7]
> i=t.index {|x| xhttp://mail.python.org/mailman/listinfo/python-list
On Fri, Feb 11, 2011 at 1:43 PM, André Roberge wrote:
> On Friday, February 11, 2011 5:24:15 PM UTC-4, LL.Snark wrote:
>> Hi,
>>
>> I'm looking for a pythonic way to translate this short Ruby code :
>> t=[6,7,8,6,7,9,8,4,3,6,7]
>> i=t.index {|x| x>
>> If you don't know Ruby, the second line means
On Fri, Feb 11, 2011 at 1:24 PM, LL.Snark wrote:
> Hi,
>
> I'm looking for a pythonic way to translate this short Ruby code :
> t=[6,7,8,6,7,9,8,4,3,6,7]
> i=t.index {|x| x
> If you don't know Ruby, the second line means :
> What is the index, in array t, of the first element x such that x
> If ca
On Friday, February 11, 2011 5:24:15 PM UTC-4, LL.Snark wrote:
> Hi,
>
> I'm looking for a pythonic way to translate this short Ruby code :
> t=[6,7,8,6,7,9,8,4,3,6,7]
> i=t.index {|x| x
> If you don't know Ruby, the second line means :
> What is the index, in array t, of the first element x such
At the top of the last post I didn't understand how I was supposed to have
my e mail headers or my quotes formatted.
I also would like to change the header to my e mail thread. To
I appolpgize and thank you for clearing up my thinking. I just got done
with a java class and I should have paid mo
I have an exercise im working on.
I have an array of strings, and I would like to take each peace of the array
and assign it to a new array so I can iterate over each of those pieces and
replace the sting I want then put it back together.
I hope that is not too confusing. This is how im trying
Garland Fulton, 24.11.2010 06:55:
Is there a way I can define an Array of and unknown size so I can add and
remove to or from it?
Are arrays immutable?
Python has lists and tuples as basic data structures. Tuples are completely
immutable, lists are completely mutable. If you want a container
On 11/23/2010 10:55 PM, Garland Fulton wrote:
Is there a way I can define an Array of and unknown size so I can add
and remove to or from it?
Do you mean the arrays of the array module, or NumPy arrays, or
something else entirely? In the first case, yes; arrays behave more or
less like lists
On Mon, 20 Sep 2010 15:47:32 -0700, Glenn Pringle wrote:
> Ok. I ran into a problem here. I have been dabbling with Python and I
> thought that this would be a good exercise but I got stuck.
>
> I have a DLL and one of the functions(getState) in that DLL returns an
> array.
If the DLL was writte
On Mon, Sep 20, 2010 at 3:47 PM, Glenn Pringle wrote:
> Ok. I ran into a problem here. I have been dabbling with Python and I
> thought that this would be a good exercise but I got stuck.
>
> I have a DLL and one of the functions(getState) in that DLL returns an
> array. I'm having a hard time get
On Wed, Sep 23, 2009 at 10:03 PM, AggieDan04 wrote:
> On Sep 23, 3:02 pm, Simon Forman wrote:
>> On Wed, Sep 23, 2009 at 1:14 PM, Rudolf wrote:
>> > Can someone tell me how to allocate single and multidimensional arrays
>> > in python. I looked online and it says to do the following x =
>> > ['1
On Sep 23, 3:02 pm, Simon Forman wrote:
> On Wed, Sep 23, 2009 at 1:14 PM, Rudolf wrote:
> > Can someone tell me how to allocate single and multidimensional arrays
> > in python. I looked online and it says to do the following x =
> > ['1','2','3','4']
>
> > However, I want a much larger array li
On Wednesday 23 September 2009 22:12:24 Ethan Furman wrote:
> Works great if you want 4,999,999 elements. ;-) Omit the '1' if you
> want all five million.
Yes. Fenceposts always get me :)
And I was just reminded that one can:
l=range(500)
\d
--
home: http://otherwise.relics.co.za/
2D vector
Donn wrote:
On Wednesday 23 September 2009 19:14:20 Rudolf wrote:
I want to allocate an array and then populate it
using a for loop.
You don't need to allocate anything, just use the list or dictionary types.
l=[] #empty list
for x in range(1,500):
l.append(x)
\d
Works great if you
On Wed, Sep 23, 2009 at 1:22 PM, Donn wrote:
> On Wednesday 23 September 2009 19:14:20 Rudolf wrote:
>> I want to allocate an array and then populate it
>> using a for loop.
> You don't need to allocate anything, just use the list or dictionary types.
>
> l=[] #empty list
> for x in range(1,50
On Wed, Sep 23, 2009 at 1:14 PM, Rudolf wrote:
> Can someone tell me how to allocate single and multidimensional arrays
> in python. I looked online and it says to do the following x =
> ['1','2','3','4']
>
> However, I want a much larger array like a 100 elements, so I cant
> possibly do that. I
Hi!
See:
http://docs.python.org/tutorial
(section 5)
@+
--
MCI
--
http://mail.python.org/mailman/listinfo/python-list
On Sep 23, 2009, at 1:16 PM, Rudolf wrote:
> Can someone tell me how to allocate single and multidimensional arrays
> in python. I looked online and it says to do the following x =
> ['1','2','3','4']
>
> However, I want a much larger array like a 100 elements, so I cant
> possibly do that. I wan
On Wednesday 23 September 2009 19:14:20 Rudolf wrote:
> I want to allocate an array and then populate it
> using a for loop.
You don't need to allocate anything, just use the list or dictionary types.
l=[] #empty list
for x in range(1,500):
l.append(x)
\d
--
http://mail.python.org/mailman/
Gary Herron wrote:
1. Why have you flooded this news group with three identical copies of
a question under three different subject? This is a (mild) bit of abuse
of the newsgroup. One copy with a reasonable subject line is enough.
If you look at the dates, they are a few days old. I imagine
Marlin Rowley wrote:
All:
Say I have an array:
a = ([''],[''])
How do I make it so that I now have:
starting with first element (a[0])
new_arr[0] = 'r'
new_arr[1] = 'g'
new_arr[2] = 'b'
new_arr[3] = 'a'
new_arr[4] = 'r'
.
continuing "through" a[1] wi
Rafael Sachetto wrote:
> No problem here too.
> Using python 2.5 on Ubuntu Gutsy and the newest NumPy
Okay, I just checked with Travis and we do allow 1-element arrays to have a
truth value because it is unambiguous whereas n-element arrays are ambiguous.
Regardless, *in general* one cannot use l
Rafael Sachetto wrote:
> No problem here too.
> Using python 2.5 on Ubuntu Gutsy and the newest NumPy
That's a bug, then. It should fail. It looks like we're not raising the
exception when there is only one element.
--
Robert Kern
"I have come to believe that the whole world is an enigma, a har
No problem here too.
Using python 2.5 on Ubuntu Gutsy and the newest NumPy
2007/12/17, Robert Kern <[EMAIL PROTECTED]>:
> Peter Stahlir wrote:
> > Hi!
> >
> > I have a list of arrays and want to find an array with list.index(x).
> > Is that possible. I get an
> > ValueError: The truth value of an
Peter Stahlir wrote:
> Hi!
>
> I have a list of arrays and want to find an array with list.index(x).
> Is that possible. I get an
> ValueError: The truth value of an array with more than one element is
> ambiguous. Use a.any() or a.all()
>
>
> For example:
> from numpy import array
> a = array([
On 17 déc, 14:05, "Peter Stahlir" <[EMAIL PROTECTED]>
wrote:
> For example:
> from numpy import array
> a = array([1])
> b = array([2])
> c = [a,b]
> d = c.index(a)
No problem here, Python 2.4.4
--
http://mail.python.org/mailman/listinfo/python-list
On Tue, 13 Nov 2007 22:31:57 -0200, Jorge Godoy wrote:
> Steven D'Aprano wrote:
>
>> "The only intuitive interface is the nipple. After that, it's all
>> learned." -- Bruce Ediger on user interfaces.
>
> And after we learn its other "uses", not even the nipple is so easy...
> Who haven't hear
On Tue, 13 Nov 2007 20:25:07 -0500, Gordon C wrote:
> OK Steve, But why do we say "from array import array" and NOT "from
> math import math"? Why the difference in syntax?
It isn't different syntax. The difference is that there is a function
"array" (technically, a type rather than a function
On Nov 14, 3:51 am, "[EMAIL PROTECTED]" <[EMAIL PROTECTED]>
wrote:
> Modules contain objects. When you want to import a specific set of
> objects contained in a module into the local namespace, you use:
> from import
> For example:
> from math import sqrt
> from math import sin, cos
>
> If
Modules contain objects. When you want to import a specific set of
objects contained in a module into the local namespace, you use:
from import
For example:
from math import sqrt
from math import sin, cos
If you want to import everything from a module, use:
from import *
For example:
OK Steve, But why do we say "from array import array" and NOT "from math
import math"? Why the difference in syntax?
Gord
"Steven D'Aprano" <[EMAIL PROTECTED]> wrote in message
news:[EMAIL PROTECTED]
> On Tue, 13 Nov 2007 11:26:28 -0500, Gordon C wrote:
>
>> OK, thanks to all. The key statement
Steven D'Aprano wrote:
> "The only intuitive interface is the nipple. After that, it's all
> learned." -- Bruce Ediger on user interfaces.
And after we learn its other "uses", not even the nipple is so easy... Who
haven't heard (or said, if you're a woman) "Don't bite it like that, it
hurts!"?
On Tue, 13 Nov 2007 11:26:28 -0500, Gordon C wrote:
> OK, thanks to all. The key statement is "from array import array" which
> is not exactly intuitive!
"The only intuitive interface is the nipple. After that, it's all
learned." -- Bruce Ediger on user interfaces.
Once you've been using Pyt
On Nov 13, 2007 10:26 AM, Gordon C <[EMAIL PROTECTED]> wrote:
> OK, thanks to all. The key statement is "from array import array" which is
> not exactly intuitive!
> Gord
>
It becomes intuitive when you learn Python, which is what you're
reading the tutorial for, and it's why the tutorial shows yo
OK, thanks to all. The key statement is "from array import array" which is
not exactly intuitive!
Gord
"John Machin" <[EMAIL PROTECTED]> wrote in message
news:[EMAIL PROTECTED]
>
> Bernard wrote:
>> On 12 nov, 20:19, "Gordon C" <[EMAIL PROTECTED]> wrote:
>> > Absolute newbie here. In spite of th
On Nov 13, 8:36 pm, "Simon Brunning" <[EMAIL PROTECTED]> wrote:
> On Nov 13, 2007 6:58 AM, John Machin <[EMAIL PROTECTED]> wrote:
>
> > Hey Bernard, read Gordon's message carefully; he's asking about
> > arrays, not lists.
>
> Chances are a list is exactly what the OP wants.
>
Chances are a list i
On Nov 13, 2007 6:58 AM, John Machin <[EMAIL PROTECTED]> wrote:
> Hey Bernard, read Gordon's message carefully; he's asking about
> arrays, not lists.
Chances are a list is exactly what the OP wants.
--
Cheers,
Simon B.
[EMAIL PROTECTED]
http://www.brunningonline.net/simon/blog/
GTalk: simon.bru
Bernard wrote:
> On 12 nov, 20:19, "Gordon C" <[EMAIL PROTECTED]> wrote:
> > Absolute newbie here. In spite of the Python Software Foundation tutorial's
> > (http://www.python.org/doc/current/tut/tut.html) use of the array
> > declaration
> > array(type[,initializer]), the Python interpreter doe
On 12 nov, 20:19, "Gordon C" <[EMAIL PROTECTED]> wrote:
> Absolute newbie here. In spite of the Python Software Foundation tutorial's
> (http://www.python.org/doc/current/tut/tut.html) use of the array
> declaration
> array(type[,initializer]), the Python interpreter does NOT accept the word
> ar
olden
Sent: 13 April 2007 14:03
Cc: [EMAIL PROTECTED]
Subject: Re: Arrays, Got Me Confused
Robert Rawlins - Think Blue wrote:
> Hello Guys,
>
> Wider fragments of code don't really exists at this moment in time :-D
this
> is just a bit of a 'tester' class for me to get
On Fri, 2007-04-13 at 13:50 +0100, Robert Rawlins - Think Blue wrote:
> Hello Guys,
>
> Wider fragments of code don't really exists at this moment in time :-D this
> is just a bit of a 'tester' class for me to get used to the methods.
> Basically I'm trying to create a class that contains an array
"Robert Rawlins - Think Blue" <[EMAIL PROTECTED]> wrote in message
news:[EMAIL PROTECTED]
> Wider fragments of code don't really exists at this moment in time
No but specifying the problem too narrowly tends to get you an
unidiomatic solution.
> Basically I'm trying to create a class that conta
Robert Rawlins - Think Blue wrote:
> Hello Guys,
>
> Wider fragments of code don't really exists at this moment in time :-D this
> is just a bit of a 'tester' class for me to get used to the methods.
> Basically I'm trying to create a class that contains an array of MAC
> address, these look somet
inciples are the same, but the languages I'm used to are more robust and
vague so I don't have to define what type of data i'm storing the array and
things.
Thanks guys,
Rob
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]
On Behalf Of Tim Golden
Sent
Michael Bentley wrote:
>
> On Apr 13, 2007, at 7:04 AM, Robert Rawlins - Think Blue wrote:
>> #!/usr/bin/python
>>
>> # Filename: Firewall.py
>> class Firewall:
>>def __init__(self):
>>
>> Self.FireArray = array(c)
>>
>> p = Firewall()
>>
>> print p
>> Throws:
>>
>>
>>
>> Tra
HI,
You will have to import Numeric module
Add
from Numeric import *
to the script
For the second question:
Suppose you wrote the code for your class in firewall.py
and your main script is main.py
Put the file firewall.py in the directory where you have main.py
Then in main.py do :
import firewall
On Apr 13, 2007, at 7:04 AM, Robert Rawlins - Think Blue wrote:
#!/usr/bin/python
# Filename: Firewall.py
class Firewall:
def __init__(self):
Self.FireArray = array(c)
p = Firewall()
print p
Throws:
Traceback (most recent call last):
File "./firewall.p
<[EMAIL PROTECTED]> wrote in message
news:[EMAIL PROTECTED]
> Paul McGuire wrote:
>> As an example of using pyparsing, I chose a simple text adventure
>> application, and had to create a 2-D grid of rooms. The presentation
>> materials are online at http://www.python.org/pycon/2006/papers/4/, and
Fredrik Lundh wrote:
> [EMAIL PROTECTED] wrote:
>
> > Interesting. Could I do . . . let's say
> >
> > b = [range(range(3)]
> >
> > for a three-dimensional array?
>
> >>> [range(range(3))]
> Traceback (most recent call last):
>File "", line 1, in
> TypeError: range() integer end argument expe
From: <[EMAIL PROTECTED]> wrote:
8<---
> So:
> Way to do SIMPLE array, either internally or externally, with Python,
> please.
to help you see it - here is a simple 3 row by 3 column list:
myarray = [[1,2,3],[4,5,6],[7,8,9]]
the first "row" is myarray[0] - ie
[EMAIL PROTECTED] wrote:
> Interesting. Could I do . . . let's say
>
> b = [range(range(3)]
>
> for a three-dimensional array?
>>> [range(range(3))]
Traceback (most recent call last):
File "", line 1, in
TypeError: range() integer end argument expected, got list.
if your mail program is e
[EMAIL PROTECTED] wrote:
> What's the difference between xrange and range?
range() creates a list object and fills it in up front, xrange() returns
a sequence-like object that generates indexes on demand.
for short loops, this difference doesn't really matter. for large
loops, or if you usual
Andrea Griffini wrote:
> Neil Cerutti wrote:
>
> > >>> b =[range(2), range(2)]
>
> I often happened to use
>
>b = [[0] * N for i in xrange(N)]
>
> an approach that can also scale up in dimensions;
> for example for a cubic NxNxN matrix:
>
>b = [[[0] * N for i in xrange(N)]
>
Niel Cerutti wrote:
>Just build it up bit by bit, or build it all at once
>using range() and then fill it in afterwards.
>>>> b =[range(2), range(2)]
>>>> b
>[0, 1], [0, 1]]
>>>> b[0][1] = "OK."
>>>> b
>[0, 'OK.'], [0, 1]]
Interesting. Could I do . . . let's say
b = [rang
Neil Cerutti wrote:
> >>> b =[range(2), range(2)]
I often happened to use
b = [[0] * N for i in xrange(N)]
an approach that can also scale up in dimensions;
for example for a cubic NxNxN matrix:
b = [[[0] * N for i in xrange(N)]
for j in xrange(N)]
Andrea
--
htt
<[EMAIL PROTECTED]> wrote in message
news:[EMAIL PROTECTED]
> Pythonic lists are everything I want in a one dimensional array . . .
> but I'm trying to do a text adventure and simplify the proces by
> creating a grid as opposed to a tedious list of rooms this room
> connects to.
>
> Way to do SIM
On 2006-10-23, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote:
> Pythonic lists are everything I want in a one dimensional array
> . . . but I'm trying to do a text adventure and simplify the
> proces by creating a grid as opposed to a tedious list of rooms
> this room connects to.
Not to chase you
"[EMAIL PROTECTED]" <[EMAIL PROTECTED]> writes:
> Way to do SIMPLE array, either internally or externally, with Python,
Maybe you want to use a dictionary:
a = {}
a[(3,5)] = 2
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http://mail.python.org/mailman/listinfo/python-list
Lance Hoffmeyer wrote:
> So, I have using the following to grab numbers from MS Word. I discovered
> that that there is a "special"
> rule being used for rounding.
>
> If a ??.5 is even the number is to rounded down (20.5 = 20)
> if a ??.5 is odd the number is to rounded up (21.5 = 22)
>
> Brands
Lance Hoffmeyer <[EMAIL PROTECTED]> writes:
> So, I have using the following to grab numbers from MS Word. I
> discovered that that there is a "special" rule being used for
> rounding.
>
> If a ??.5 is even the number is to rounded down (20.5 = 20)
> if a ??.5 is odd the number is to rounded up
> Oh, don't tell me, I love playing guessing games!
Don't you mean "No no... don't tell me. I'm keen to guess."
Sorry, I couldn't resist... :-)
(for those who just went huh?, see
http://www.aldo.com/sgt/CheeseShoppeSkit.htm)
--
http://mail.python.org/mailman/listinfo/python-list
On Fri, 10 Feb 2006 17:50:21 -0500, Kermit Rose wrote:
> I want to write a program in python using integer arrays.
>
> I wish to calculate formulas using 200 digit integers.
Must the integers have exactly 200 digits? If you multiply one of these
200-digit integers by ten, should it silently ove
> I want to write a program in python using integer arrays.
you can :)
> I wish to calculate formulas using 200 digit integers.
no problem
> I could not find any documentation in python manual about declaring arrays.
>
> I searched the internet
read here
http://diveintopython.org/native_dat
Kermit Rose wrote:
> From: Kermit Rose
> Date: 02/10/06 17:36:34
> To: [EMAIL PROTECTED]
> Subject: Arrays
>
>
> Hello.
>
> I want to write a program in python using integer arrays.
>
> I wish to calculate formulas using 200 digit integers.
>
> I could not find any documentation in pytho
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