[Tutor] changin two lines in a single python script
jatinder Singh
jatinder.singh2 at wipro.com
Wed May 21 16:51:02 CEST 2008
Hi .
I am trying to change two lines in a single file (etc/php.ini) but my
script is not doing this in one time .Please hav a look
import re
import sys
import os
def re_new(pat, rep, s):
print re.sub(pat, rep, s)
_stext_1 = 'memory_limit...M' #first word to search
_rtext_1 = 'memory_limit = 512M ;' #to be replaced with first word
_stext_2 = 'upload_max_filesize.*M' #Second word
_rtext_2 = 'upload_max_filesize = 9M ;' #to replace with second
word
s = open("/home/ccuser/temp1.txt").readlines()
for record in s:
re_new(_stext_1,_rtext_1,record) #if found first then replaceit
re_new(_stext_2,_rtext_2,record) #else if found second then
replace that
Will you please help me to correct this script so as to both of the
changes occure at a singlr time
Thanks for past, now and future
Jatin
On Wed, 2008-05-21 at 16:29 +0200, tutor-request at python.org wrote:
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> Today's Topics:
>
> 1. Re: String Replacement question (Wolfram Kraus)
> 2. python investment scheme assistance (Binish Huma Qadir)
> 3. Re: String Replacement question (Kent Johnson)
> 4. Re: String Replacement question (Moishy Gluck)
> 5. Re: python investment scheme assistance (Kent Johnson)
> 6. String Replacement Question (Kinuthia Muchane)
> 7. Re: String Replacement Question (Moishy Gluck)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Wed, 21 May 2008 12:11:28 +0200
> From: Wolfram Kraus <wolfram.kraus at fen-net.de>
> Subject: Re: [Tutor] String Replacement question
> To: tutor at python.org
> Message-ID: <g10siv$psb$1 at ger.gmane.org>
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
> Am 21.05.2008 11:35, Faheem schrieb:
> > Hi all,
> > How do I replace the same value multiple times without repeating the
> > same variable name/value repeatedly?
> > for ex.
> >
> > some = 'thing'
> > print '%s %s %s %s' % (some,some,some,some)
> >
> > in this case, my question is how do i replace "% (some,some,some)" with
> > something more concise?
> >
> > thanks in advance,
> > Faheem
>
> Hi!
>
> Two possible solutions:
>
> print "%s %s %s %s" % (tuple([some]*4))
>
> print " ".join([some for x in range(4)])
>
> HTH,
> Wolfram
>
>
>
> ------------------------------
>
> Message: 2
> Date: Wed, 21 May 2008 19:35:01 +1000 (EST)
> From: Binish Huma Qadir <b.qadir at ugrad.unimelb.edu.au>
> Subject: [Tutor] python investment scheme assistance
> To: tutor at python.org
> Message-ID:
> <3049.59.101.135.171.1211362501.squirrel at webmail.student.unimelb.edu.au>
>
> Content-Type: text/plain; charset=UTF-8
>
> Hi,
>
> I'm doing a Investment implementation project where i need to use the
> following data:
> http://app.lms.unimelb.edu.au/bbcswebdav/courses/600151_2008_1/datasets/finance/asx_large.csv
>
> I've been instructed to design an investment scheme in python.
> The investment scheme i have chosen is based on investing in 3companies
> with the highest dividend yield and lowest debt equity ratio.
>
> The problem is that i dont know how to set up a python code that gives me
> the top 3 companies with the above characterisics.
>
> Your help would be much appreciated.
> Thank you very much for your time.
> Regards,
> Binish
>
>
>
> ------------------------------
>
> Message: 3
> Date: Wed, 21 May 2008 06:36:30 -0400
> From: "Kent Johnson" <kent37 at tds.net>
> Subject: Re: [Tutor] String Replacement question
> To: Faheem <faheem at atlantiscomputing.com>
> Cc: tutor at python.org
> Message-ID:
> <1c2a2c590805210336h71fdc349r803b7ba076cb5f88 at mail.gmail.com>
> Content-Type: text/plain; charset=ISO-8859-1
>
> On Wed, May 21, 2008 at 5:35 AM, Faheem <faheem at atlantiscomputing.com> wrote:
> > Hi all,
> > How do I replace the same value multiple times without repeating the
> > same variable name/value repeatedly?
> > for ex.
> >
> > some = 'thing'
> > print '%s %s %s %s' % (some,some,some,some)
>
> You can use named parameters, which moves the repetition to the format string:
>
> In [24]: print '%(some)s %(some)s %(some)s %(some)s' % (dict(some=some))
> thing thing thing thing
>
> With multiple values, a common trick is to pass vars() or locals() as
> the dict, giving the format access to all defined variables:
>
> In [27]: a=1
>
> In [28]: b=2
>
> In [29]: print '%(a)s %(b)s' % vars()
> 1 2
>
> If you literally need to repeat as in your example, you could do this:
>
> In [26]: print '%s %s %s %s' % (4*(some,))
> thing thing thing thing
>
> Kent
>
>
> ------------------------------
>
> Message: 4
> Date: Wed, 21 May 2008 07:04:16 -0400
> From: "Moishy Gluck" <moishyyehuda at gmail.com>
> Subject: Re: [Tutor] String Replacement question
> To: tutor at python.org
> Message-ID:
> <187d38240805210404r1a6877edp610c1ef3372e44a0 at mail.gmail.com>
> Content-Type: text/plain; charset="iso-8859-1"
>
> Some other solutions might be
>
> >>> animal = 'cat'
> >>> " ".join((animal, ) * 4)
> 'cat cat cat cat'
> >>> animal = 'cat'
> >>> print " ".join((animal, ) * 4)
> cat cat cat cat
> >>>#If you need the string injected into another string
> >>> print "My %s's name is ginger." % (" ".join((animal,) * 4))
> My cat cat cat cat's name is ginger.
> >>>
>
> On Wed, May 21, 2008 at 6:36 AM, Kent Johnson <kent37 at tds.net> wrote:
>
> > On Wed, May 21, 2008 at 5:35 AM, Faheem <faheem at atlantiscomputing.com>
> > wrote:
> > > Hi all,
> > > How do I replace the same value multiple times without repeating the
> > > same variable name/value repeatedly?
> > > for ex.
> > >
> > > some = 'thing'
> > > print '%s %s %s %s' % (some,some,some,some)
> >
> > You can use named parameters, which moves the repetition to the format
> > string:
> >
> > In [24]: print '%(some)s %(some)s %(some)s %(some)s' % (dict(some=some))
> > thing thing thing thing
> >
> > With multiple values, a common trick is to pass vars() or locals() as
> > the dict, giving the format access to all defined variables:
> >
> > In [27]: a=1
> >
> > In [28]: b=2
> >
> > In [29]: print '%(a)s %(b)s' % vars()
> > 1 2
> >
> > If you literally need to repeat as in your example, you could do this:
> >
> > In [26]: print '%s %s %s %s' % (4*(some,))
> > thing thing thing thing
> >
> > Kent
> > _______________________________________________
> > Tutor maillist - Tutor at python.org
> > http://mail.python.org/mailman/listinfo/tutor
> >
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>
> ------------------------------
>
> Message: 5
> Date: Wed, 21 May 2008 08:45:10 -0400
> From: "Kent Johnson" <kent37 at tds.net>
> Subject: Re: [Tutor] python investment scheme assistance
> To: "Binish Huma Qadir" <b.qadir at ugrad.unimelb.edu.au>
> Cc: tutor at python.org
> Message-ID:
> <1c2a2c590805210545g4a4c188cu70aca0f4c406508 at mail.gmail.com>
> Content-Type: text/plain; charset=ISO-8859-1
>
> On Wed, May 21, 2008 at 5:35 AM, Binish Huma Qadir
> <b.qadir at ugrad.unimelb.edu.au> wrote:
> > Hi,
> >
> > I'm doing a Investment implementation project where i need to use the
> > following data:
> > http://app.lms.unimelb.edu.au/bbcswebdav/courses/600151_2008_1/datasets/finance/asx_large.csv
> >
> > I've been instructed to design an investment scheme in python.
> > The investment scheme i have chosen is based on investing in 3companies
> > with the highest dividend yield and lowest debt equity ratio.
>
> This sounds like a homework problem; we try to avoid doing homework.
> We will help you with specific questions.
>
> Do you know how to read the file? Maybe you could start with a program
> that just reads and prints the csv file. The csv module can help with
> that. Then compute and print the measures you need; finally pick out
> the top three.
>
> Try to write some code and ask here when you have trouble.
>
> Kent
>
>
> ------------------------------
>
> Message: 6
> Date: Wed, 21 May 2008 16:42:11 +0300
> From: Kinuthia Muchane <muchanek at gmail.com>
> Subject: [Tutor] String Replacement Question
> To: tutor at python.org
> Message-ID: <483426B3.5080309 at gmail.com>
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
> >>> st = "String"
> >>> print "%s " %st*3
> String String String
> >>>
>
> Does this help?
>
> Kinuthia...
>
> -----------------------------
>
> Message: 6
> Date: Wed, 21 May 2008 15:05:21 +0530
> From: Faheem <faheem at atlantiscomputing.com>
> Subject: [Tutor] String Replacement question
> To: tutor at python.org
> Message-ID: <20080521150521.604437d8 at atlantiscomputing.com>
> Content-Type: text/plain; charset=US-ASCII
>
> Hi all,
> How do I replace the same value multiple times without repeating the
> same variable name/value repeatedly?
> for ex.
>
> some = 'thing'
> print '%s %s %s %s' % (some,some,some,some)
>
> in this case, my question is how do i replace "% (some,some,some)" with
> something more concise?
>
> thanks in advance,
> Faheem
>
>
>
> ------------------------------
>
> Message: 7
> Date: Wed, 21 May 2008 10:29:41 -0400
> From: "Moishy Gluck" <moishyyehuda at gmail.com>
> Subject: Re: [Tutor] String Replacement Question
> To: tutor at python.org
> Message-ID:
> <187d38240805210729r29f225bbyae313adb3f3423b5 at mail.gmail.com>
> Content-Type: text/plain; charset="iso-8859-1"
>
> On Wed, May 21, 2008 at 10:29 AM, Moishy Gluck <moishyyehuda at gmail.com>
> wrote:
>
> > >>> "%s " %st*3
> > 'String String String '
> > ^
> > If you look closely at the end of the string there is an extra space.
> >
> > >>> " ".join((st, )*3)
> > 'String String String'
> > ^
> > No extra space.
> >
> >
> > On Wed, May 21, 2008 at 9:42 AM, Kinuthia Muchane <muchanek at gmail.com>
> > wrote:
> >
> >> st = "String"
> >>>>> print "%s " %st*3
> >>>>>
> >>>> String String String
> >>
> >>>
> >>>>>
> >> Does this help?
> >>
> >> Kinuthia...
> >>
> >> -----------------------------
> >>
> >> Message: 6
> >> Date: Wed, 21 May 2008 15:05:21 +0530
> >> From: Faheem <faheem at atlantiscomputing.com>
> >> Subject: [Tutor] String Replacement question
> >> To: tutor at python.org
> >> Message-ID: <20080521150521.604437d8 at atlantiscomputing.com>
> >> Content-Type: text/plain; charset=US-ASCII
> >>
> >> Hi all,
> >> How do I replace the same value multiple times without repeating the
> >> same variable name/value repeatedly?
> >> for ex.
> >>
> >> some = 'thing'
> >> print '%s %s %s %s' % (some,some,some,some)
> >>
> >> in this case, my question is how do i replace "% (some,some,some)" with
> >> something more concise?
> >>
> >> thanks in advance,
> >> Faheem
> >>
> >> _______________________________________________
> >> Tutor maillist - Tutor at python.org
> >> http://mail.python.org/mailman/listinfo/tutor
> >>
> >
> >
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>
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> http://mail.python.org/mailman/listinfo/tutor
>
>
> End of Tutor Digest, Vol 51, Issue 44
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--
Kind Regards
Jatinder Singh
Project Trainee
Wipro Technologies
Greater Noida
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