How to use the portage.output.colorize function in portage

custommirrors = grabdict(os.path.join(mysettings["PORTAGE_CONFIGROOT"],
		CUSTOM_MIRRORS_FILE), recursive=1)

	mymirrors=[]

	if listonly or ("distlocks" not in features):
		use_locks = 0

	distdir_writable = os.access(mysettings["DISTDIR"], os.W_OK)
	fetch_to_ro = 0
	if "skiprocheck" in features:
		fetch_to_ro = 1

	if not distdir_writable and fetch_to_ro:
		if use_locks:
			writemsg(colorize("BAD",
				_("!!! For fetching to a read-only filesystem, "
				"locking should be turned off.\n")), noiselevel=-1)
			writemsg(_("!!! This can be done by adding -distlocks to "
				"FEATURES in /etc/portage/make.conf\n"), noiselevel=-1)
#			use_locks = 0

	# local mirrors are always added
	if try_mirrors and "local" in custommirrors:
		mymirrors += custommirrors["local"]

	if restrict_mirror:
		# We don't add any mirrors.
		pass
	else:
		if try_mirrors:
			mymirrors += [x.rstrip("/") for x in mysettings["GENTOO_MIRRORS"].split() if x]

if discard_atoms:
			for atom in sorted(discard_atoms):

				if pretend:
					action_desc = "Would remove"
				else:
					action_desc = "Removing"

				if atom.startswith(SETPREFIX):
					filename = "world_sets"
				else:
					filename = "world"

				writemsg_stdout(
					">>> %s %s from \"%s\" favorites file...\n" %
					(action_desc, colorize("INFORM", str(atom)),
					filename), noiselevel=-1)

			if '--ask' in opts:
				prompt = "Would you like to remove these " + \
					"packages from your world favorites?"
				uq = UserQuery(opts)
				if uq.query(prompt, enter_invalid) == 'No':
					return 128 + signal.SIGINT

			remaining = set(world_set)
			remaining.difference_update(discard_atoms)
			if not pretend:
				world_set.replace(remaining)
		else:
			print(">>> No matching atoms found in \"world\" favorites file...")
	finally:

def pkgprint(pkg_str, pkg_info):
		"""Colorizes a string acording to pkg_info settings

		@param pkg_str: string
		@param pkg_info: dictionary
		@rtype colorized string
		"""
		if pkg_info.merge:
			if pkg_info.built:
				if pkg_info.system:
					return colorize("PKG_BINARY_MERGE_SYSTEM", pkg_str)
				elif pkg_info.world:
					return colorize("PKG_BINARY_MERGE_WORLD", pkg_str)
				else:
					return colorize("PKG_BINARY_MERGE", pkg_str)
			else:
				if pkg_info.system:
					return colorize("PKG_MERGE_SYSTEM", pkg_str)
				elif pkg_info.world:
					return colorize("PKG_MERGE_WORLD", pkg_str)
				else:
					return colorize("PKG_MERGE", pkg_str)
		elif pkg_info.operation == "uninstall":
			return colorize("PKG_UNINSTALL", pkg_str)
		else:
			if pkg_info.system:
				return colorize("PKG_NOMERGE_SYSTEM", pkg_str)
			elif pkg_info.world:
				return colorize("PKG_NOMERGE_WORLD", pkg_str)

for y in localtree.dep_match(cp):
			if y not in pkgmap[x]["omitted"] and \
				y not in pkgmap[x]["selected"] and \
				y not in pkgmap[x]["protected"] and \
				y not in all_selected:
				pkgmap[x]["omitted"].add(y)
		if global_unmerge and not pkgmap[x]["selected"]:
			#avoid cluttering the preview printout with stuff that isn't getting unmerged
			continue
		if not (pkgmap[x]["protected"] or pkgmap[x]["omitted"]) and cp in syslist:
			virt_cp = sys_virt_map.get(cp)
			if virt_cp is None:
				cp_info = "'%s'" % (cp,)
			else:
				cp_info = "'%s' (%s)" % (cp, virt_cp)
			writemsg_level(colorize("BAD","\n\n!!! " + \
				"%s is part of your system profile.\n" % (cp_info,)),
				level=logging.WARNING, noiselevel=-1)
			writemsg_level(colorize("WARN","!!! Unmerging it may " + \
				"be damaging to your system.\n\n"),
				level=logging.WARNING, noiselevel=-1)
		if not quiet:
			writemsg_level("\n %s\n" % (bold(cp),), noiselevel=-1)
		else:
			writemsg_level(bold(cp) + ": ", noiselevel=-1)
		for mytype in ["selected","protected","omitted"]:
			if not quiet:
				writemsg_level((mytype + ": ").rjust(14), noiselevel=-1)
			if pkgmap[x][mytype]:
				sorted_pkgs = []
				for mypkg in pkgmap[x][mytype]:
					try:

USER_VIRTUALS_FILE)
		if os.path.exists(abs_user_virtuals):
			writemsg("\n!!! /etc/portage/virtuals is deprecated in favor of\n")
			writemsg("!!! /etc/portage/profile/virtuals. Please move it to\n")
			writemsg("!!! this new location.\n\n")

		if not sandbox_capable and \
			("sandbox" in self.features or "usersandbox" in self.features):
			if self.profile_path is not None and \
				os.path.realpath(self.profile_path) == \
				os.path.realpath(os.path.join(
				self["PORTAGE_CONFIGROOT"], PROFILE_PATH)):
				# Don't show this warning when running repoman and the
				# sandbox feature came from a profile that doesn't belong
				# to the user.
				writemsg(colorize("BAD", _("!!! Problem with sandbox"
					" binary. Disabling...\n\n")), noiselevel=-1)

		if "fakeroot" in self.features and \
			not fakeroot_capable:
			writemsg(_("!!! FEATURES=fakeroot is enabled, but the "
				"fakeroot binary is not installed.\n"), noiselevel=-1)

		if "webrsync-gpg" in self.features:
			writemsg(_("!!! FEATURES=webrsync-gpg is deprecated, see the make.conf(5) man page.\n"),
				noiselevel=-1)

		if os.getuid() == 0 and not hasattr(os, "setgroups"):
			warning_shown = False

			if "userpriv" in self.features:
				writemsg(_("!!! FEATURES=userpriv is enabled, but "

if blocker.satisfied:
			self.blocker_style = "PKG_BLOCKER_SATISFIED"
			addl = "%s     " % (colorize(self.blocker_style, "b"),)
		else:
			self.blocker_style = "PKG_BLOCKER"
			addl = "%s     " % (colorize(self.blocker_style, "B"),)
		addl += self.empty_space_in_brackets()
		self.resolved = dep_expand(
			str(blocker.atom).lstrip("!"), mydb=self.vardb,
			settings=self.pkgsettings
			)
		if self.conf.columns and self.conf.quiet:
			addl += " " + colorize(self.blocker_style, str(self.resolved))
		else:
			addl = "[%s %s] %s%s" % \
				(colorize(self.blocker_style, "blocks"),
				addl, self.indent,
				colorize(self.blocker_style, str(self.resolved))
				)
		block_parents = self.conf.blocker_parents.parent_nodes(blocker)
		block_parents = set(str(pnode.cpv) for pnode in block_parents)
		block_parents = ", ".join(block_parents)
		if blocker.atom.blocker.overlap.forbid:
			blocking_desc = "hard blocking"
		else:
			blocking_desc = "blocking"
		if self.resolved != blocker.atom:
			addl += colorize(self.blocker_style,
				" (\"%s\" is %s %s)" %
				(str(blocker.atom).lstrip("!"),
				blocking_desc, block_parents))
		else:

else:
					return colorize("PKG_BINARY_MERGE", pkg_str)
			else:
				if pkg_info.system:
					return colorize("PKG_MERGE_SYSTEM", pkg_str)
				elif pkg_info.world:
					return colorize("PKG_MERGE_WORLD", pkg_str)
				else:
					return colorize("PKG_MERGE", pkg_str)
		elif pkg_info.operation == "uninstall":
			return colorize("PKG_UNINSTALL", pkg_str)
		else:
			if pkg_info.system:
				return colorize("PKG_NOMERGE_SYSTEM", pkg_str)
			elif pkg_info.world:
				return colorize("PKG_NOMERGE_WORLD", pkg_str)
			else:
				return colorize("PKG_NOMERGE", pkg_str)

ii = atom_str.find(slot_str)
								colored_idx.update(range(ii, ii + len(slot_str)))


							if op is not None:
								atom_str = atom_str.replace(op, colorize("BAD", op), 1)

							if ver is not None:
								start = atom_str.rfind(ver)
								end = start + len(ver)
								atom_str = atom_str[:start] + \
									colorize("BAD", ver) + \
									atom_str[end:]

							if slot_str:
								atom_str = atom_str.replace(slot_str, colorize("BAD", slot_str), 1)

						elif slot_violated:
							slot = atom.slot
							sub_slot = atom.sub_slot
							slot_operator = atom.slot_operator

							slot_str = ""
							if slot:
								slot_str = ":" + slot
							if sub_slot:
								slot_str += "/" + sub_slot
							if slot_operator:
								slot_str += slot_operator

							if slot_str:
								ii = atom_str.find(slot_str)

def countdown(secs=5, doing='Starting'):
	if secs:
		print(
			'>>> Waiting %s seconds before starting...\n'
			'>>> (Control-C to abort)...\n'
			'%s in:' % (secs, doing), end='')
		for sec in range(secs, 0, -1):
			sys.stdout.write(colorize('UNMERGE_WARN', ' %i' % sec))
			sys.stdout.flush()
			time.sleep(1)
		print()

# as these change the indices of the letters.
							if op is not None:
								colored_idx.update(range(len(op)))

							if ver is not None:
								start = atom_str.rfind(ver)
								end = start + len(ver)
								colored_idx.update(range(start, end))

							if slot_str:
								ii = atom_str.find(slot_str)
								colored_idx.update(range(ii, ii + len(slot_str)))


							if op is not None:
								atom_str = atom_str.replace(op, colorize("BAD", op), 1)

							if ver is not None:
								start = atom_str.rfind(ver)
								end = start + len(ver)
								atom_str = atom_str[:start] + \
									colorize("BAD", ver) + \
									atom_str[end:]

							if slot_str:
								atom_str = atom_str.replace(slot_str, colorize("BAD", slot_str), 1)

						elif slot_violated:
							slot = atom.slot
							sub_slot = atom.sub_slot
							slot_operator = atom.slot_operator