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import os, time
class Dirsize():
def a(path):
return len(os.listdir(path))
def b(path):
for _, dirs, files in os.walk(path):
return len(files) + len(dirs)
def c(path):
first = next(os.walk(path))
return len(first[1]) + len(first[2])
paths = {
'/usr/lib': None,
'/usr/bin': None,
'/home/hut': None
}
for key in paths.keys():
paths[key] = Dirsize.a(key) # assume Dirsize.a() returns a correct result
for algo in ['a', 'b', 'c']:
t = time.time()
for i in range(4):
assert Dirsize.__dict__[algo](key) == paths[key]
print("algorithm %s: %20s: %f" % (algo, key, time.time() - t))
# a !!
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