Mercurial > cpython-lru_cache-weakref

annotate Tools/scripts/hotshotmain.py @ 79675:c0a2294de787 2.7

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Issue #16199: Backport 2to3 typo fix from 3.2.
author Chris Jerdonek <chris.jerdonek@gmail.com>
date Thu, 11 Oct 2012 16:15:46 -0700
parents 95744a4208a2
children ac192f89c109
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1 #!/usr/bin/env python
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2 # -*- coding: iso-8859-1 -*-
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3
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4 """
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5 Run a Python script under hotshot's control.
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6
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7 Adapted from a posting on python-dev by Walter Dörwald
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8
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9 usage %prog [ %prog args ] filename [ filename args ]
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10
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11 Any arguments after the filename are used as sys.argv for the filename.
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12 """
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13
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14 import sys
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15 import optparse
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16 import os
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17 import hotshot
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18 import hotshot.stats
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19
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20 PROFILE = "hotshot.prof"
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21
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22 def run_hotshot(filename, profile, args):
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23 prof = hotshot.Profile(profile)
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24 sys.path.insert(0, os.path.dirname(filename))
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25 sys.argv = [filename] + args
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26 prof.run("execfile(%r)" % filename)
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27 prof.close()
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28 stats = hotshot.stats.load(profile)
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29 stats.sort_stats("time", "calls")
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30
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31 # print_stats uses unadorned print statements, so the only way
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32 # to force output to stderr is to reassign sys.stdout temporarily
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33 save_stdout = sys.stdout
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34 sys.stdout = sys.stderr
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35 stats.print_stats()
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36 sys.stdout = save_stdout
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37
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38 return 0
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39
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40 def main(args):
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41 parser = optparse.OptionParser(__doc__)
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42 parser.disable_interspersed_args()
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43 parser.add_option("-p", "--profile", action="store", default=PROFILE,
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44 dest="profile", help='Specify profile file to use')
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45 (options, args) = parser.parse_args(args)
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46
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47 if len(args) == 0:
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48 parser.print_help("missing script to execute")
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49 return 1
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50
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51 filename = args[0]
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52 return run_hotshot(filename, options.profile, args[1:])
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53
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54 if __name__ == "__main__":
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55 sys.exit(main(sys.argv[1:]))