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Anoop
*nix forums beginner
Joined: 20 Jul 2006
Posts: 5
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 Posted: Thu Jul 20, 2006 6:26 am Post subject:
Depricated String Functions in Python
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Hi All
Can any one help me out with the various depricated string functions
that is followed in Python.
For example how will be string.lower depricated.
As far as string.lower('PYTHON') is concerned it is depricated as
'PYTHON'.lower(). Both of them would return an output : >>> python
Thanks for your inputs
Regards
Anoop |
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Stefan Behnel
*nix forums addict
Joined: 18 Apr 2005
Posts: 81
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| Posted: Thu Jul 20, 2006 6:38 am Post subject:
Re: Depricated String Functions in Python
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Anoop wrote:
| Quote: | Can any one help me out with the various depricated string functions
that is followed in Python.
For example how will be string.lower depricated.
As far as string.lower('PYTHON') is concerned it is depricated as
'PYTHON'.lower(). Both of them would return an output : >>> python
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I don't quite see the question in your post, but, yes, the module level
functions of the "string" module are deprecated in favour of the methods of
the str and unicode objects.
Stefan |
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Steve Holden
*nix forums Guru
Joined: 22 Feb 2005
Posts: 1255
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| Posted: Thu Jul 20, 2006 7:18 am Post subject:
Re: Depricated String Functions in Python
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Anoop wrote:
| Quote: | Hi All
Can any one help me out with the various depricated string functions
that is followed in Python.
For example how will be string.lower depricated.
As far as string.lower('PYTHON') is concerned it is depricated as
'PYTHON'.lower(). Both of them would return an output : >>> python
Thanks for your inputs
I wonder if this isn't just an English problem: the fact that the |
functions of the string module is depracated just means that you are
encouraged to use the string objects' methods instead, as the string
module is likely to be removed at some time in the future.
regards
Steve
--
Steve Holden +44 150 684 7255 +1 800 494 3119
Holden Web LLC/Ltd http://www.holdenweb.com
Skype: holdenweb http://holdenweb.blogspot.com
Recent Ramblings http://del.icio.us/steve.holden |
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John Machin
*nix forums Guru
Joined: 19 Feb 2005
Posts: 608
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| Posted: Thu Jul 20, 2006 7:55 am Post subject:
Re: Depricated String Functions in Python
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On 20/07/2006 5:18 PM, Steve Holden wrote:
| Quote: | Anoop wrote:
Hi All
Can any one help me out with the various depricated string functions
that is followed in Python.
For example how will be string.lower depricated.
As far as string.lower('PYTHON') is concerned it is depricated as
'PYTHON'.lower(). Both of them would return an output : >>> python
Thanks for your inputs
I wonder if this isn't just an English problem: the fact that the
functions of the string module is depracated
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"depracated"? "functions ... is"? Yup, sure looks like an English
problem to me :-)
Perhaps the docs should use simpler words like "outdated" or "not
preferred" or such-like instead of "depr*e*cated".
Cheers,
John |
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Steve Holden
*nix forums Guru
Joined: 22 Feb 2005
Posts: 1255
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| Posted: Thu Jul 20, 2006 8:21 am Post subject:
Re: Depricated String Functions in Python
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John Machin wrote:
| Quote: | On 20/07/2006 5:18 PM, Steve Holden wrote:
Anoop wrote:
Hi All
Can any one help me out with the various depricated string functions
that is followed in Python.
For example how will be string.lower depricated.
As far as string.lower('PYTHON') is concerned it is depricated as
'PYTHON'.lower(). Both of them would return an output : >>> python
Thanks for your inputs
I wonder if this isn't just an English problem: the fact that the
functions of the string module is depracated
"depracated"? "functions ... is"? Yup, sure looks like an English
problem to me :-)
Nobody likes a smartarse  |
| Quote: | Perhaps the docs should use simpler words like "outdated" or "not
preferred" or such-like instead of "depr*e*cated".
That probably wouldn't be a bad idea. Please note, however, that even if |
the documentation spelled everything correctly I would doubtless
continue to mangle the spellings through typos.
regards
Steve
--
Steve Holden +44 150 684 7255 +1 800 494 3119
Holden Web LLC/Ltd http://www.holdenweb.com
Skype: holdenweb http://holdenweb.blogspot.com
Recent Ramblings http://del.icio.us/steve.holden |
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Sybren Stuvel
*nix forums Guru
Joined: 22 Feb 2005
Posts: 550
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| Posted: Thu Jul 20, 2006 12:41 pm Post subject:
Re: Depricated String Functions in Python
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Steve Holden enlightened us with:
| Quote: | Perhaps the docs should use simpler words like "outdated" or "not
preferred" or such-like instead of "depr*e*cated".
That probably wouldn't be a bad idea.
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I don't think it'll help much. If someone can program a computer,
he/she certainly should be able to look up a word in a dictionary.
Sybren
--
The problem with the world is stupidity. Not saying there should be a
capital punishment for stupidity, but why don't we just take the
safety labels off of everything and let the problem solve itself?
Frank Zappa |
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Anoop
*nix forums beginner
Joined: 20 Jul 2006
Posts: 5
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| Posted: Thu Jul 20, 2006 1:15 pm Post subject:
Re: Depricated String Functions in Python
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Thanks Stefen
let me be more specific how would i have to write the following
function in the deprecated format
map(string.lower,list)
Thanks Anoop
Stefan Behnel wrote:
| Quote: | Anoop wrote:
Can any one help me out with the various depricated string functions
that is followed in Python.
For example how will be string.lower depricated.
As far as string.lower('PYTHON') is concerned it is depricated as
'PYTHON'.lower(). Both of them would return an output : >>> python
I don't quite see the question in your post, but, yes, the module level
functions of the "string" module are deprecated in favour of the methods of
the str and unicode objects.
Stefan |
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Steve Holden
*nix forums Guru
Joined: 22 Feb 2005
Posts: 1255
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| Posted: Thu Jul 20, 2006 1:26 pm Post subject:
Re: Depricated String Functions in Python
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Anoop wrote:
| Quote: | Thanks Stefen
let me be more specific how would i have to write the following
function in the deprecated format
map(string.lower,list)
To avoid the deprecated usage you would use the unbound method of the |
str type (that's the type of all strings):
| Quote: | lst = ['Steve', 'Holden']
map(str.lower, lst)
['steve', 'holden']
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regards
Steve
--
Steve Holden +44 150 684 7255 +1 800 494 3119
Holden Web LLC/Ltd http://www.holdenweb.com
Skype: holdenweb http://holdenweb.blogspot.com
Recent Ramblings http://del.icio.us/steve.holden |
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Simon Forman
*nix forums addict
Joined: 22 Jun 2006
Posts: 83
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| Posted: Thu Jul 20, 2006 1:30 pm Post subject:
Re: Depricated String Functions in Python
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Anoop wrote:
| Quote: | Thanks Stefen
let me be more specific how would i have to write the following
function in the deprecated format
map(string.lower,list)
Thanks Anoop
|
Ah. This is easy enough:
lower_list = [s.lower() for s in str_list]
Or, if you really like map() (or really don't like list comprehensions
;P ) you could use this:
lower_list = map(lambda s : s.lower(), str_list)
Hope this helps,
~Simon |
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Duncan Booth
*nix forums Guru
Joined: 11 Mar 2005
Posts: 422
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| Posted: Thu Jul 20, 2006 1:36 pm Post subject:
Re: Depricated String Functions in Python
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Anoop wrote:
| Quote: | let me be more specific how would i have to write the following
function in the deprecated format
map(string.lower,list)
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What you just wrote is the deprecated format.
There are plenty of ways to write it in an undeprecated format. The
simplest is probably:
[ s.lower() for s in list ] |
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riquito@gmail.com
*nix forums beginner
Joined: 14 Jun 2006
Posts: 5
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| Posted: Thu Jul 20, 2006 2:02 pm Post subject:
Re: Depricated String Functions in Python
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Steve Holden ha scritto:
| Quote: | Anoop wrote:
Thanks Stefen
let me be more specific how would i have to write the following
function in the deprecated format
map(string.lower,list)
To avoid the deprecated usage you would use the unbound method of the
str type (that's the type of all strings):
lst = ['Steve', 'Holden']
map(str.lower, lst)
['steve', 'holden']
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This isn't exactly equal to use string.lower, because this work with
just encoded strings, when string.lower works with unicode too.
I'm used to have a "lower" func like this one
def lower(x): return x.lower()
to use in map. Of course it's a problem when you need many different
methods.
A solution could be something like this
| Quote: | def doit(what):
.... def func(x): |
.... return getattr(x,what)()
.... return func
....
| Quote: | map(doit('lower'),['aBcD',u'\xc0'])
['abcd', u'\xe0']
map(doit('upper'),['aBcD',u'\xc0'])
['ABCD', u'\xc0'] |
The best is to use in advance just unicode or encoded strings in your
program, but this is not always possible :-/
Riccardo Galli |
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Donn Cave
*nix forums Guru Wannabe
Joined: 20 Feb 2005
Posts: 172
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| Posted: Thu Jul 20, 2006 4:31 pm Post subject:
Re: Depricated String Functions in Python
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In article <mailman.8368.1153402047.27775.python-list@python.org>,
Steve Holden <steve@holdenweb.com> wrote:
| Quote: | Anoop wrote:
Thanks Stefen
let me be more specific how would i have to write the following
function in the deprecated format
map(string.lower,list)
To avoid the deprecated usage you would use the unbound method of the
str type (that's the type of all strings):
lst = ['Steve', 'Holden']
map(str.lower, lst)
['steve', 'holden']
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Oh, excellent - the string module is dead, long live
the string module! I can replace string.join with
str.join, and never have to defile my code with that
' '.join(x) abomination.
Donn Cave, donn@u.washington.edu |
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Sybren Stuvel
*nix forums Guru
Joined: 22 Feb 2005
Posts: 550
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| Posted: Thu Jul 20, 2006 4:37 pm Post subject:
Re: Depricated String Functions in Python
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Donn Cave enlightened us with:
| Quote: | Oh, excellent - the string module is dead, long live the string
module! I can replace string.join with str.join, and never have to
defile my code with that ' '.join(x) abomination.
|
It's not an abomination. It's a very clear way of telling those two
apart:
' '.join(x)
u' '.join(x)
Sybren
--
The problem with the world is stupidity. Not saying there should be a
capital punishment for stupidity, but why don't we just take the
safety labels off of everything and let the problem solve itself?
Frank Zappa |
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Steve Holden
*nix forums Guru
Joined: 22 Feb 2005
Posts: 1255
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| Posted: Thu Jul 20, 2006 6:04 pm Post subject:
Re: Depricated String Functions in Python
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Donn Cave wrote:
[...]
| Quote: |
Oh, excellent - the string module is dead, long live
the string module! I can replace string.join with
str.join, and never have to defile my code with that
' '.join(x) abomination.
lst = ['Steve', 'Holden']
str.join(' ', lst)
'Steve Holden'
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Just so long as you don't complain about the arguments being in the
wrong order ...
regards
Steve
--
Steve Holden +44 150 684 7255 +1 800 494 3119
Holden Web LLC/Ltd http://www.holdenweb.com
Skype: holdenweb http://holdenweb.blogspot.com
Recent Ramblings http://del.icio.us/steve.holden |
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Duncan Booth
*nix forums Guru
Joined: 11 Mar 2005
Posts: 422
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| Posted: Fri Jul 21, 2006 7:41 am Post subject:
Re: Depricated String Functions in Python
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Sybren Stuvel wrote:
| Quote: | Donn Cave enlightened us with:
Oh, excellent - the string module is dead, long live the string
module! I can replace string.join with str.join, and never have to
defile my code with that ' '.join(x) abomination.
It's not an abomination. It's a very clear way of telling those two
apart:
' '.join(x)
u' '.join(x)
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I don't understand that comment. Are you saying that str.join vs
unicode.join isn't a clear distinction?
I like using str.join/unicode.join myself, but one advantage of using
separator.join directly is that you can save the bound method:
joinlines = '\n'.join
joinwords = ' '.join
you can't do that by calling the method on the type. |
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