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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 CENTOS

grub2-mkimage

GRUB-MKIMAGE(1) 					      General Commands Manual						   GRUB-MKIMAGE(1)

NAME

       grub-mkimage -- Make a bootable GRUB image.

SYNOPSIS

       grub-mkimage [-c | --config=FILE] [-C | --compression=(xz,none,auto)]
		     [-d | --directory=DIR] [-k | --pubkey=FILE]
		     [-m | --memdisk=FILE] [-n | --note] [-o | --output=FILE]
		     [-O | --format=FORMAT] [-p | --prefix=DIR]
		     [-v | --verbose] MODULES

DESCRIPTION

       grub-mkimage builds a bootable image of GRUB.

OPTIONS

       --config=FILE
	      Embed FILE as the image's initial configuration file.

       --compression=(xz,none,auto)
	      Use one of xz, none, or auto as the compression method for the core image.

       --directory=DIR
	      Use images and modules from DIR.	The default value is /usr/lib/grub/<platform>.

       --pubkey=FILE
	      Embed the public key FILE for signature checking.

       --memdisk=FILE
	      Embed the memdisk image FILE.  If no -p option is also specified, this implies -p (memdisk)/boot/grub.

       --note Add a CHRP NOTE section.	This option is only valid on IEEE1275 platforms.

       --output=FILE
	      Write the generated file to FILE.  The default is to write to standard output.

       --format=FORMAT
	      Generate an image in the specified FORMAT.  Valid values are:

		  i386-coreboot,  i386-multiboot,  i386-pc,  i386-pc-pxe,  i386-efi,  i386-ieee1275, i386-qemu, x86_64-efi, mipsel-yeeloong-flash,
		  mipsel-fuloong2f-flash,     mipself-loongson-elf,	powerpc-ieee1275,      sparc64-ieee1275-raw,	  sparc64-ieee1275-cdcore,
		  sparc64-ieee1275-aout, ia64-efi, mips-arc, mipsel-arc, mipsel-qemu_mips-elf, mips-qemu_mips-flash, mipsel-qemu_mips-flash, mips-
		  qemu_mips-elf

       --prefix=DIR
	      Set prefix directory.  The default value is /boot/grub.

       --verbose
	      Print verbose messages.

       MODULES
	      Include MODULES.

SEE ALSO

       info grub

								  Wed Feb 26 2014						   GRUB-MKIMAGE(1)
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