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Re: Pattern-match & Replace - help required

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From Peter Otten <__peter__@web.de>
Subject Re: Pattern-match & Replace - help required
Date Wed, 19 Dec 2012 14:16:18 +0100
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AT wrote:

> I am new to python and web2py framework. Need urgent help to match a
> pattern in an string and replace the matched text.
> 
> I've this string (basically an sql statement):
> stmnt = 'SELECT  taxpayer.id,
>          taxpayer.enc_name,
>          taxpayer.age,
>          taxpayer.occupation
>          FROM taxpayer WHERE (taxpayer.id IS NOT NULL);'
> 
> The requirement is to replace it with this one:
> r_stmnt = 'SELECT  taxpayer.id,
>            decrypt(taxpayer.enc_name),
>            taxpayer.age,
>            taxpayer.occupation
>            FROM taxpayer WHERE (taxpayer.id IS NOT NULL);'
> 
> Can somebody please help?

> The pattern is '%s.enc_%s', and after matching this pattern want to change
> it to 'decrypt(%s.enc_%s)'

after = re.compile(r"(\w+[.]enc_\w+)").sub(r"decrypt(\1)", before)

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Thread

Pattern-match & Replace - help required AT <matifayaz@gmail.com> - 2012-12-19 02:42 -0800
  Re: Pattern-match & Replace - help required Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2012-12-19 10:51 +0000
    Re: Pattern-match & Replace - help required AT <matifayaz@gmail.com> - 2012-12-19 03:01 -0800
      Re: Pattern-match & Replace - help required Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2012-12-19 11:09 +0000
  Re: Pattern-match & Replace - help required Thomas Bach <thbach@students.uni-mainz.de> - 2012-12-19 12:27 +0100
    Re: Pattern-match & Replace - help required AT <matifayaz@gmail.com> - 2012-12-19 03:53 -0800
    Re: Pattern-match & Replace - help required AT <matifayaz@gmail.com> - 2012-12-19 03:53 -0800
  Re: Pattern-match & Replace - help required Peter Otten <__peter__@web.de> - 2012-12-19 14:16 +0100
    Re: Pattern-match & Replace - help required AT <matifayaz@gmail.com> - 2012-12-19 05:41 -0800
      Re: Pattern-match & Replace - help required Alexander Blinne <news@blinne.net> - 2012-12-19 15:11 +0100
        Re: Pattern-match & Replace - help required MRAB <python@mrabarnett.plus.com> - 2012-12-19 14:23 +0000
    Re: Pattern-match & Replace - help required AT <matifayaz@gmail.com> - 2012-12-19 05:41 -0800

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