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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 POSIX

grub-mkimage

GRUB-MKIMAGE(1) 						   User Commands						   GRUB-MKIMAGE(1)

NAME

       grub-mkimage - make a bootable image of GRUB

SYNOPSIS

       grub-mkimage [OPTION...] [OPTION]... [MODULES]

DESCRIPTION

       Make a bootable image of GRUB.

       -c, --config=FILE
	      embed FILE as an early config

       -C, --compression=(xz|none|auto)
	      choose the compression to use for core image

       -d, --directory=DIR
	      use images and modules under DIR [default=/usr/lib/grub/<platform>]

       -k, --pubkey=FILE
	      embed FILE as public key for signature checking

       -m,				--memdisk=FILE
	      embed FILE as a memdisk image

       Implies `-p (memdisk)/boot/grub' and overrides

       any prefix supplied previously, but the prefix
	      itself can be overridden by later options

       -n, --note
	      add NOTE segment for CHRP IEEE1275

       -o, --output=FILE
	      output a generated image to FILE [default=stdout]

       -O, --format=FORMAT
	      generate	an  image  in  FORMAT  available formats: i386-coreboot, i386-multiboot, i386-pc, i386-pc-pxe, i386-pc-eltorito, i386-efi,
	      i386-ieee1275, i386-qemu, x86_64-efi, i386-xen, x86_64-xen, mipsel-yeeloong-flash, mipsel-fuloong2f-flash, mipsel-loongson-elf, pow-
	      erpc-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, arm-uboot, arm-efi, arm64-efi

       -p, --prefix=DIR
	      set prefix directory

       -v, --verbose
	      print verbose messages.

       -?, --help
	      give this help list

       --usage
	      give a short usage message

       -V, --version
	      print program version

       Mandatory or optional arguments to long options are also mandatory or optional for any corresponding short options.

REPORTING BUGS

       Report bugs to <bug-grub@gnu.org>.

SEE ALSO

       grub-install(8), grub-mkrescue(1), grub-mknetdir(8)

       The full documentation for grub-mkimage is maintained as a Texinfo manual.  If the info and grub-mkimage programs are properly installed at
       your site, the command

	      info grub-mkimage

       should give you access to the complete manual.

grub-mkimage (GRUB) 2.02-2ubuntu8.3				     July 2018							   GRUB-MKIMAGE(1)
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