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Re: Performance in exec environnements

References <mailman.17684.1421168544.18130.python-list@python.org> <54b592ac$0$12995$c3e8da3$5496439d@news.astraweb.com> <CABUUr0yYBM=EJpcZXX2mJ0pz13Tum8px3Z8y3EZcr0VEo6Bfpw@mail.gmail.com>
Date 2015-01-14 22:14 +1100
Subject Re: Performance in exec environnements
From Chris Angelico <rosuav@gmail.com>
Newsgroups comp.lang.python
Message-ID <mailman.17713.1421234104.18130.python-list@python.org> (permalink)

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On Wed, Jan 14, 2015 at 8:02 PM, Jean-Baptiste Braun
<jbaptiste.braun@gmail.com> wrote:
> What I'm trying to do is to map a transformation description in a markup
> langage (XSLT) in python to improve execution time. Here is a simplification
> of what it looks like :
>
> XSLT :
> <title>
>  <xsl:choose>
>   <xsl:when test="gender='M'">
>    Mr
>   </xsl:when>
>   <xsl:otherwise>
>    Mrs
>   </xsl:otherwise>
>  </xsl:choose>
> </title>
>
> Generated python :
> print('<title>')
> if gender == 'M':
>     print('Mr')
> else:
>     print('Mrs')
> print('</title>')

Would it be possible to do a one-off transformation of the entire XSLT
file into a Python module with a single function in it, and then every
time you need that XSLT, you import that module and call the function?
That would potentially be a lot quicker than exec(), *and* would be
much clearer - there'd be an actual file on the disk with your
generated Python code, and anyone could read it and understand what
it's doing.

ChrisA

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Thread

Performance in exec environnements Jean-Baptiste Braun <jbaptiste.braun@gmail.com> - 2015-01-13 18:02 +0100
  Re: Performance in exec environnements Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2015-01-14 08:48 +1100
    Re: Performance in exec environnements Jean-Baptiste Braun <jbaptiste.braun@gmail.com> - 2015-01-14 10:02 +0100
      Re: Performance in exec environnements Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2015-01-15 12:51 +1100
    Re: Performance in exec environnements Chris Angelico <rosuav@gmail.com> - 2015-01-14 22:14 +1100
    Re: Performance in exec environnements Jean-Baptiste Braun <jbaptiste.braun@gmail.com> - 2015-01-14 14:38 +0100
    Re: Performance in exec environnements Chris Angelico <rosuav@gmail.com> - 2015-01-15 00:43 +1100
    Re: Performance in exec environnements Ian Kelly <ian.g.kelly@gmail.com> - 2015-01-14 10:11 -0700

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