How to use the pkgconfig.Pkg function in pkgconfig

sys.exit(0)
			elif cmd=="--version":
				print "0.1"
				sys.exit(0)
		else:
			pkg_names.append(sys.argv[i])
			
	# Fix search path
	PKG_CONFIG_PATH = os.getenv("PKG_CONFIG_PATH", "").strip()
	if not PKG_CONFIG_PATH:
		PKG_CONFIG_PATH="/usr/local/lib/pkgconfig:/usr/lib/pkgconfig"
	PKG_CONFIG_PATH = PKG_CONFIG_PATH.replace(";", ":")

	# Parse files
	for pkg_name in pkg_names:
		pkg = Pkg(pkg_name)
		if not pkg.parse(PKG_CONFIG_PATH):
			sys.exit(1)
		pkg_dict[pkg_name] = pkg

	if exist_check:
		sys.exit(0)

	# Calculate priority based on dependency
	for pkg_name in pkg_dict.keys():
		pkg = pkg_dict[pkg_name]
		pkg.priority = calculate_pkg_priority(pkg, pkg_dict, 1)
	
	# Sort package based on dependency
	pkg_names = sorted(pkg_names, key=lambda pkg_name: pkg_dict[pkg_name].priority, reverse=True)

	# Get the options