[Tutor] What's the problem with my SpinSpeeds.py?
Dick Moores
rdm at rcblue.com
Sun Aug 1 22:35:28 CEST 2004
My thanks to dragonfirebane, Alan Gauld, and Kent Johnson for their help
and guidance. I don't really grasp yet what's going on, but here's what
I have now. It incorporates all of their suggestions. --Dick
====================
#SpinSpeeds.py
def countUsingRange(n):
for i in range(n):
pass
def countUsingXrange(n):
for i in xrange(n):
pass
def countUsingCounter(n):
c = 0
while c < n:
c += 1
def getCountAndRepetitionsFromUser():
print "Enter count and repetitions as, e.g., 900 10000"
n, repetitions = raw_input("Enter count and repetitions: ").split()
return int(n), int(repetitions)
if __name__=='__main__':
from timeit import Timer
n, repetitions = getCountAndRepetitionsFromUser()
t = Timer("countUsingRange(n)", "from __main__ import
countUsingRange, n")
rangeTime = t.timeit(repetitions)
cmd = "countUsingXrange(%d)" % n
t = Timer(cmd, "from __main__ import countUsingXrange")
xrangeTime = t.timeit(repetitions)
t = Timer("countUsingCounter(%d)" % n, "from __main__ import
countUsingCounter")
counterTime = t.timeit(repetitions)
print
print " range(%d) time = %f for %d repetitions" % (n, rangeTime,
repetitions)
print "xrange(%d) time = %f for %d repetitions" % (n, xrangeTime,
repetitions)
print "counter %d time = %f for %d repetitions" % (n, counterTime,
repetitions)
==========================================
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