import datetime, sys, syck, yaml
t0 = datetime.datetime.now ()
cards = syck.load_documents (open (sys.argv[1]))
t1 = datetime.datetime.now ()
print t1 - t0, 'to read the YAML via Syck'
t0 = datetime.datetime.now ()
cards = list (yaml.load_all (open (sys.argv[1])))
t1 = datetime.datetime.now ()
print t1 - t0, 'to read the YAML via PyYAML'