I am doing some simple timing of some elements of Python scripts, and
the simplest is to just call time.time() before and after key elements
of the script:
t1 = time.time()
# do lengthy operation
t2 = time.time()
print "That took %f seconds" % (t2-t1)
Unfortunately, this gives very ugly timing output, as just a floating
point number of seconds. After several iterations of writing a
formatter (strftime is not straightforward to use - it omits
milliseconds for one thing), I came up with this:
def secondsToStr(t):
rediv = lambda ll,b : list(divmod(ll[0],b)) + ll[1:]
return "%d:%02d:%02d.%03d" % tuple(reduce(rediv,[[t*1000,],
1000,60,60]))
Now I can write:
print "That took", secondsToStr(t2-t1),"seconds"
and get nicely-formatted 0:00:12.345 style output.
(I also posted this to the Python Cookbook.)
-- Paul
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