/Tools/scripts/hotshotmain.py

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