File: timebothCMP.py

"""
run this script under 2.6, for its print statement; 
it spawns commands that test 2.6 and 3.0 separately,
and parses results to compute and display comparisons 
"""
import os
reportFull = False
py26 = r'C:\Python26\\'
py30 = r'C:\Python31\\' # CHANGED
textfile = 'large.txt'
binaryfile = 'large.bin' # e.g., 'iTunes80164Setup.exe'
out26 = []
for line in os.popen('%s\python timeIO.py %s %s' % (py26, textfile, binaryfile)):
 print line,
 out26.append(line)
out30 = []
for line in os.popen('%s\python timeIO.py %s %s' % (py30, textfile, binaryfile)):
 print line,
 out30.append(line)
def parseLines(linelist):
 datalines = [line.split('=>') for line in linelist if '=>' in line]
 return [(test.strip(), float(time)) for (test, time) in datalines]
combined = zip(parseLines(out26), parseLines(out30))
print '\n==Summary==\n'
for ((test26, time26), (test30, time30)) in combined:
 #assert test26 == test30
 if test26 != test30: print '**label diff:', test26, test30 # CHANGED
 timesSlower = time30 / time26
 percentTime = time26 / time30
 if reportFull:
 print '\n[%s]' % test26
 print '....2.6=%.5f\n....3.0=%.5f' % ( time26, time30)
 print '....3.1 times slower=%.3f' % timesSlower # CHANGED
 print '....2.6 time percent=%.3f' % percentTime
 else:
 print '%-48s' % ('[%s]' % test26),
 print '=> 3.1 is %8.3f times slower' % timesSlower # CHANGED