Is there any built in way to generate a list of characters, something
along the line of range('a'-'z') ?
Right now I am using:
chars = [ chr(l) for l in range(0x30, 0x3a) ] # 0 - 9
chars += [ chr(l) for l in range(0x41, 0x5b) ] # A - Z
chars += [ chr(l) for l in range(0x61, 0x7b) ] # a
Diez B. Roggisch <[EMAIL PROTECTED]> wrote:
> Please write the following program and meditate at least 30min in front of
> it:
> while True:
>print "utf-8 is not unicode"
I hope you will have a better day today than yesterday !
Now, I did this:
while True:
print "¡ Python knows about enco
Can you put UTF-8 characters in a dbhash in python 2.5 ?
It fails when I try:
#!/bin/env python
# -*- coding: utf-8 -*-
import dbhash
db = dbhash.open('dbfile.db', 'w')
db[u'smiley'] = u'☺'
db.close()
Do I need to change the bsd db library, or there is no way to
Peter Otten <[EMAIL PROTECTED]> wrote:
> The speed gain is significant. Why should I throw away useful information if
> I have it?
My thinking was that it wasn't generic enough, and I was looking for a
solution that would work for more generic problem. I agree, I shouldn't
have used the world "e
[EMAIL PROTECTED] wrote:
> i want to search a document for a particular regexp and then store
> that regexp to a file.
> but search and match only returns matchobjects(what are those anyway?
> i dont get what to do with them, do they contain true/false,
> stringposition etc?)
> how do i do:
> for
Peter Otten <[EMAIL PROTECTED]> wrote:
> > A slightly similar problem: If I want to "merge," say, list1=[1,2,3] with
> > list2=[4,5,6] to obtain [1,4,2,5,3,6], is there some clever way with "zip"
> > to do so?
> >>> items = [None] * 6
> >>> items[::2] = 1,2,3
> >>> items[1::2] = 4,5,6
> >>> items
I want to create a subclass of 'file' but need to open the file with os.open
(because I want to open it in exclusive mode), and need an additional method.
Because I need an additional method, I truly need a object of my sublass.
If I do something like
class myFile(file):
def __new__(cls, filen
Marc 'BlackJack' Rintsch wrote:
y, _, d, _, _, _, _, _, _ = time.localtime()
But you still have have a variable that's using memory for nothing. I
find this unsatisfactory...
Get over it…
Than what's the point of wanting a better language if every time we run in
something that looks wron
Scott David Daniels wrote:
Yves Dorfsman wrote:
... Sorry this was a typo (again :-), I meant:
d = time.local()
y = d[0]
d = d[2]
Then:
y, d = list(time.localtime())[:4:2]
What is this ?
Could you point me to a document on this syntax ?
I've tried it, it works, but I
Ben Finney wrote:
y, _, d, _, _, _, _, _, _ = time.localtime()
But you still have have a variable that's using memory for nothing.
No, you have one extra unused name binding. The values that you don't
want to use have *already* been allocated by the time the above
statement is executed. Na
Gabriel Genellina wrote:
Uses Python 2.6! ;)
No need of 2.6 - the above code works since Python 2.2 at least:
Python 2.2.3 (#42, May 30 2003, 18:12:08) [MSC 32 bit (Intel)] on win32
Type "help", "copyright", "credits" or "license" for more information.
import time
t=time.localtime()
type(t)
D'Arcy J.M. Cain wrote:
On Mon, 12 May 2008 02:28:13 GMT
Yves Dorfsman <[EMAIL PROTECTED]> wrote:
particular case, there's got to be a better way than:
d = time.local()
y = d[0]
d = d[1]
Like this?
y, d = time.local()[:2]
Sorry this was a typo (again :-), I meant:
Paul Rubin wrote:
Yves Dorfsman <[EMAIL PROTECTED]> writes:
import time
y, None, d, None, None, None, None = time.localtime()
I know you can't assign anything to None, but I'm sure you get what I
mean, a special keyword that means I don't care about this value.
You ca
Is there anyway to tell python I don't care about a value ?
Say I want today's year and day, I'd like to do something like:
import time
y, None, d, None, None, None, None = time.localtime()
I know you can't assign anything to None, but I'm sure you get what I mean,
a special keyword that means
John Salerno wrote:
To me, the first example is a pure use of the for loop. You are
iterating through an object and *using* the items you are stepping through.
The second example, however, is simply doing something 10 times, and
what it's doing has nothing to do with 'x' or xrange. So it see
Gary Herron wrote:
First of all, some terminology: You are not *calling* a file, you are
*opening* it or reading.
Wouldn't it be more correct to say that, in python, you either create a file
object, or call a method for that object, once the object has been created ?
Yves.
--
http://mail.
[EMAIL PROTECTED] wrote:
The only thing is, is there is another natural meaning to [a,b:c].
Counting grids on the diagonals, the rational set is well defined:
0: 0, 0
1: 1, 0
2: 0, 1
3: 2, 0
4: 1, 1
5: 0, 2
6: 3, 0
7: 2, 1
...
Thencefore ( 2, 0 ) : ( 3, 0 ) is well defined. Thencefore,
a,b:
Gabriel Genellina wrote:
I see the point of the OP. Couldn't the new-line be used as an
equivalent of ':', for example, do you find this difficult to read:
if a == 3
do_something()
if a == 3: do_something()
Yes, it could be done, there are no technical reasons to always force to
use
[EMAIL PROTECTED] wrote:
You cannot rely on the elements of a dictionary being in any
particular order (dicts are internally hash tables), so the above
is almost certainly ont what you want.
Hi - thanks for your reply. How about if I made the dict into a list
(of
which I have done). How woul
MRAB wrote:
You should've read the thread entitled "Why don't generators execute
until first yield?"! :-) Michael Torrie gave the URL
http://www.dabeaz.com/generators/Generators.pdf. Your example can be
rewritten as follows:
p = file('/etc/passwd') # No need for readlines() because file's
itera
Mensanator wrote:
2. python requires to pass "self" to all instance methods
Who uses methods?
Is this a joke ?
What are the alternatives ?
and I missed ":" often. :)
Try using something like Seed7, where you have to use "then" with
"if" and "do" with "while" and "end" in every block. M
Miles wrote:
On Wed, May 7, 2008 at 7:46 PM, Ivan Illarionov
> > Is there a way to do:
> > x = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
> > x[0,2:6]
> >
> > That would return:
> > [0, 3, 4, 5, 6]
Arg... Yes, this is a typo, I meant:
[1, 3, 4, 5, 6]
I think Yves meant to return [1, 3, 4, 5
Miles wrote:
In Python 2.2, classes and types were unified. If a class inherits
from object (or any other built-in), it is considered a "new-style"
class; otherwise, it is an old-style (or classic) class. There are
some differences in their behavior; most notably, descriptors
(computer propert
Does it make a difference if you put subclass object or not ?
What is the difference between c1 and c2 here:
class c1:
pass
class c2(object):
pass
Thanks,
Yves.
http://www.SollerS.ca
--
http://mail.python.org/mailman/listinfo/python-list
Is there a way to do:
x = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
x[0,2:6]
That would return:
[0, 3, 4, 5, 6]
I am surprised this notation is not supported, it seems intuitive.
A concrete example of the sort of thing I want to do:
p = file('/etc/passwd').readlines()
q = [ e.strip().split(':')[0,2:] for
Thanks everybody, I didn't mean to start a flamewar...
I do get it now, it's whatever python is in the path, vs. the specific one
you're pointing to.
Ben Finney wrote:
No, because it's quite common for the PATH variable to have
'/usr/local/bin' appear *before* both of '/bin' and '/usr/bin'.
George Sakkis wrote:
Another alternative is:
from operator import itemgetter
def m3():
colours, nums = zip(*map(itemgetter('colour','num'), l))
It's slower than m1() but faster than m2(); it's also the most
concise, especially if you extract more than two keys.
Good you guys gave me som
I did a few tests with this script:
class byebye:
def __del__(self):
print 'Bye, bye...'
x = byebye()
x.del() gets executed if:
-I del x, then run gc.collect()
-simply exit the script
-get the script to abort on an exception
But if I kill it with the default signal TERM, the script di
In the following script, m1() and m2() work fine. I am assuming m2() is
faster although I haven't checked that (loops through the list twice instead
of once).
Now what I am trying to do is something like m3(). As currently written it
does not work, and I have tried different ways, but I have
On UNIX, some people use
#!/usr/bin/env python
While other use
#!/usr/bin/python
Why is one preferred over the other one ?
Thanks.
--
Yves.
http://www.SollerS.ca
--
http://mail.python.org/mailman/listinfo/python-list
Dan Bishop wrote:
>>> lines[:] = [line.rstrip('\n') for line in lines]
>> What is the point of the [:] after lines ? How different is it with or
>> without it ?
>
> It causes the result to be stored in the existing list.
>
If we do:
lines = [line.rstrip('\n') for line in lines]
lines is now a
Gabriel Genellina wrote:
> En Mon, 14 Apr 2008 01:41:55 -0300, reetesh nigam
>> l=['5\n', '2\n', '7\n', '3\n', '6\n']
>>
>> how to remove \n from the given list
>
> l is is very poor name... I'll use lines instead:
>
> lines[:] = [line.rstrip('\n') for line in lines]
When I saw the original me
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