def check_package(package):
base.discover_packages()
if not base.has_package(package):
print "Unknown package:", package
sys.exit(1)
def filter_packages(cond):
base.discover_packages()
packages = base.list_packages()
return [
"%s - %s" % (name, desc) if desc else name for name, desc in sorted(packages.iteritems()) if cond(name, desc)
]
