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Full Discussion: Replace double quotes with a single quote within a double quoted string
Top Forums Shell Programming and Scripting Replace double quotes with a single quote within a double quoted string Post 302900267 by Klashxx on Tuesday 6th of May 2014 02:19:08 AM
Old 05-06-2014
Hi @wisecracker, i just wanted tho show a practical usage of look-ahead/behid assertion, for me the important thing here is not the print statement and of course i can't guarantee python in all *nix boxes.

Also i didn't take care of just single double quotes fields.

Cheers.

Quote:
Originally Posted by wisecracker
Hi klashxx...

Just a couple of points here.
1) It looks as though you are using Python 2.x, (2.7.x), so your print statement would not
work on 3.x.x. Parentheses are needed to make 'print' a function 'print(your stuff here)'
2) Can you guarantee that all UNIX, Linux, CygWin etc, systems have a python version?

EDIT:-
To the OP is the part above the ^ character an error?
Code:
Last login: Mon May  5 19:09:15 on ttys000
AMIGA:barrywalker~> python
Python 2.7.1 (r271:86832, Aug  5 2011, 03:30:24) 
[GCC 4.2.1 (Based on Apple Inc. build 5658) (LLVM build 2335.15.00)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> import re
>>> text='''1234,"","qwerty",," abcd efg "h" bcd"efg
...  dfg",","","5"'''
>>> print text
1234,"","qwerty",," abcd efg "h" bcd"efg
 dfg",","","5"
>>> 
>>> 
>>> print re.sub(r'(?<![,\A])"(?!(?:(,|\Z)))',"'",text)
1234,"","qwerty",," abcd efg 'h' bcd'efg
 dfg",","","5"
>>> # ^ is this an error?
... # Should it be a "'"?
... 
>>> exit()
AMIGA:barrywalker~> _

This User Gave Thanks to Klashxx For This Post:
wisecracker
 

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LEARN ABOUT DEBIAN

python-mkdebian

PYTHON-MKDEBIAN(1)						   User Commands						PYTHON-MKDEBIAN(1)

NAME

       python-mkdebian - Generate a suitable Debian source package for a standard distutils application

SYNOPSIS

       python-mkdebian [options]

DESCRIPTION

       This  script generates a reasonably Debian Policy compliant Debian source package for a Python application that uses distutils properly. It
       assumes that there are no public Python modules, and generates just a single application binary package.

       Information is taken from setup.py's generated .egg-info file: author, project name, description, version, upstream  source,  license,  and
       required  and  provided	Python	modules  (which  are translated to Debian python library package names, and automatically added as package
       dependencies).

       It generates a simple cdbs/python-support rules file.

       python-mkdebian was designed to be used with the DistUtilsExtra.auto module, which calculates required Python  dependencies  automatically.
       However,  it  makes  no	explicit assumptions about DistUtilsExtra, so if setup.py has complete information it will work with any distutils
       setup.

OPTIONS

       --force-control=FORCE_CONTROL
	      Force control file behaviour. Can be one of "none" (keep unchanged), "deps" (only update dependencies), or  "full"  (recreate  whole
	      file). By default only dependencies will be updated ("deps").

       --force-copyright
	      Force whole copyright file to be recreated. By default it will not touch an already existing copyright file, so that you can custom-
	      ize them.

       --force-rules
	      Force whole rules file to be recreated. By default it will not touch an already existing rules file, so that you can customize them.

       --changelog=CHANGELOG
	      Add changelog entry to debian/changelog (can be specified multiple times)

       --dependency=PACKAGENAME
	      Add additional debian package dependency (can be specified multiple times)

       --prefix=PREFIX
	      Ask for installing all your modules in the dedicated PREFIX (default is /usr)

       --version
	      Show program's version number and exit

       -h, --help
	      Show this help message and exit

SEE ALSO

       Python help for the distutils module

AUTHOR

       python-mkdebian is developed by Martin Pitt <martin.pitt@ubuntu.com>.

python-mkdebian 						     May 2010							PYTHON-MKDEBIAN(1)
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