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Full Discussion: Python re.findall inverse Match
Top Forums Programming Python re.findall inverse Match Post 302965330 by metallica1973 on Wednesday 27th of January 2016 11:49:19 AM
Old 01-27-2016
Python re.findall inverse Match
I ask of you but yet another simplistic question that I hope can be answered. Its better explained showing my code. Here is my list(tmp_pkglist), which contains a list of all Debian (Jessie) packages:
snippet
Code:
 'zssh (1.5c.debian.1-3.2+b1 [s390x], 1.5c.debian.1-3.2 [amd64, arm64, armel, armhf, i386, mips, mipsel, powerpc, ppc64el])',
 'zsync (0.6.2-1)',
 'ztex-bmp (20120314-2)',
 'zurl (1.3.1-4)',
 'zutils (1.3-4)',
 'zutils-dbg (1.3-4) utilities for dealing with compressed files transparently (debug)',
 'zvbi (0.2.35-3) Vertical Blanking Interval (VBI)',
 'zygrib (6.2.3-1)',
 'zygrib-maps (6.2.3-1)',
 'zynadd (1+git.20100609+dfsg0-2)',
 'zynaddsubfx (2.4.3-4)',
 'zynaddsubfx-dbg (2.4.3-4)',
 'zynaddsubfx-dssi (2.4.3-4)',
 'zypper (1.11.13-1)',
 'zypper-common (1.11.13-1) command line software manager using libzypp (common files)',
 'zypper-doc (1.11.13-1) command line software manager using libzypp (documentation)',
 'zziplib-bin (0.13.62-3)',
 'zzuf (0.13.svn20100215-4.1+b1 [s390x], 0.13.svn20100215-4.1 [amd64, arm64, armel, armhf, i386, mips, mipsel, powerpc, ppc64el])']

Using this block of code and using re.findall, how can I tell the regex to "not" or inversely find all of the lines that do not contain:
Code:
 'zssh (1.5c.debian.1-3.2+b1 [s390x], 1.5c.debian.1-3.2 [amd64, arm64, armel, armhf, i386, mips, mipsel, powerpc, ppc64el])
'zzuf (0.13.svn20100215-4.1+b1 [s390x], 0.13.svn20100215-4.1 [amd64, arm64, armel, armhf, i386, mips, mipsel, powerpc, ppc64el])']

I tried various combos but cannot get the inverse of what I want which is:
Code:
 'zypper (1.11.13-1)',
 'zypper-common (1.11.13-1) command line software manager using libzypp (common files)',
 'zypper-doc (1.11.13-1) command line software manager using libzypp (documentation)',
 'zziplib-bin (0.13.62-3)',

For example:
Code:
for scrape in tmp_pkglist:
            capture = re.findall('?!(.*\[s390x\].*))', scrape)
            if capture:
                    print capture

I am used to using "!" or boolean "not" but have never done it using Pythons "re" module. Thanks in advance.

---------- Post updated at 11:49 AM ---------- Previous update was at 10:44 AM ----------

This did the trick:
Code:
for scrub_norm in tmp_pkglist:
    sanitize_norm = re.findall('.*\[s390x\].*', scrub_norm)
    if not sanitize_norm:
        print scrub_norm

Thanks to grail from antother forum
 

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LEARN ABOUT DEBIAN

ubuntu-build

UBUNTU-BUILD(1) 					      General Commands Manual						   UBUNTU-BUILD(1)

NAME

       ubuntu-build - command-line interface to Launchpad build operations

SYNOPSIS

       ubuntu-build <srcpackage> <release> <operation>

DESCRIPTION

       ubuntu-build provides a command line interface to the Launchpad build operations.

OPERATIONS

       Listed below are the available operations for ubuntu-build:

       status Outputs the build status of the package on Launchpad on all architectures.

       retry  Requests	that the package has another attempt at rebuilding from source.  This will only work if the package has Failed to build on
	      Launchpad.

       rescore
	      Requests that the package's build priority be raised in the build queue.	Only members of the  Launchpad	build  administrators  may
	      issue this operation, and it may only be performed on packages which Need building.

OPTIONS

       Listed below are the command line options for ubuntu-build:

       -h or --help
	      Display a help message and exit.

       Retry and rescore options:

	      These options may only be used with the 'retry' and 'rescore' operations.

	      -a ARCHITECTURE, --arch=ARCHITECTURE Rebuild or rescore a specific architecture. Valid architectures include: amd64, sparc, powerpc,
	      i386, armel, armhf, ia64, lpia, hppa.

       Batch processing:

	      These options and parameter ordering is only available in --batch mode. Usage: ubuntu-build --batch [options] <package>...

	      --batch Enable batch mode

	      --series=SERIES Selects the Ubuntu series to operate on (default: current development series)

	      --retry Retry builds (give-back).

	      --rescore=PRIORITY Rescore builds to <priority>.

	      --arch2=ARCHITECTURE Affect only 'architecture' (can be used several times). Valid architectures are: amd64, sparc,  powerpc,  i386,
	      armel, armhf, ia64, lpia, hppa.

AUTHORS

       ubuntu-build  was  written  by  Martin  Pitt  <martin.pitt@canonical.com>,  and	this  manual  page  was written by Jonathan Patrick Davies
       <jpds@ubuntu.com>.

       Both are released under the terms of the GNU General Public License, version 3 or (at your option) any later version.

ubuntu-dev-tools						     June 2010							   UBUNTU-BUILD(1)
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