gnu: python: Replace input python by python-wrapper.
* gnu/packages/{gdb.scm (gdb), cryptsetup.scm (cryptsetup),
ghostscript.scm (ghostscript), glib.scm (glib), gnupg.scm (pius),
gtk.scm (cairo, harfbuzz), libevent.scm (libevent), netpbm.scm (netpbm),
oggvorbis.scm (libkate), qemu.scm (qemu), samba.scm (samba),
texlive.scm (rubber, texlive), version-control.scm (subversion),
xml.scm (libxml2, libxslt), xorg.scm (libxcb, mesa, xcb-proto, xorg-server),
yasm.scm (yasm), zip.scm (zziplib)}:
Replace input python by python-wrapper.