Mercurial > cpython-lru_cache-weakref

annotate Tools/scripts/gprof2html.py @ 87690:66c1c9f32567 default tip

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Add use_weakref option to functools.lru_cache The use_weakref option makes lru_cache create weak references to the function arguments when creating the cache key, which prevents them from staying in the memory forever even after all other references to them are gone. This is a proof of concept for http://bugs.python.org/issue19859
author Radomir Dopieralski <devel@sheep.art.pl>
date Tue, 03 Dec 2013 16:02:48 +0100
parents 354e4d096c34
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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354e4d096c34 Issue #17801: fix shebang line of gprof2html.py
Ned Deily <nad@acm.org>
parents: 76250
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1 #! /usr/bin/env python3
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2
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3 """Transform gprof(1) output into useful HTML."""
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4
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5 import re, os, sys, cgi, webbrowser
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7 header = """\
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8 <html>
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9 <head>
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10 <title>gprof output (%s)</title>
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11 </head>
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12 <body>
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13 <pre>
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14 """
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15
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16 trailer = """\
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17 </pre>
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18 </body>
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19 </html>
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20 """
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21
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4d603d6782db #14508: make gprof2html script runnable under python3
R David Murray <rdmurray@bitdance.com>
parents: 59522
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22 def add_escapes(filename):
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23 with open(filename) as fp:
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24 for line in fp:
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25 yield cgi.escape(line)
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26
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27
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28 def main():
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29 filename = "gprof.out"
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30 if sys.argv[1:]:
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31 filename = sys.argv[1]
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32 outputfilename = filename + ".html"
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33 input = add_escapes(filename)
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34 output = open(outputfilename, "w")
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35 output.write(header % filename)
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36 for line in input:
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37 output.write(line)
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38 if line.startswith(" time"):
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39 break
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40 labels = {}
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41 for line in input:
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42 m = re.match(r"(.* )(\w+)\n", line)
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43 if not m:
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44 output.write(line)
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45 break
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46 stuff, fname = m.group(1, 2)
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47 labels[fname] = fname
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48 output.write('%s<a name="flat:%s" href="#call:%s">%s</a>\n' %
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49 (stuff, fname, fname, fname))
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50 for line in input:
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51 output.write(line)
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52 if line.startswith("index % time"):
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53 break
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54 for line in input:
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55 m = re.match(r"(.* )(\w+)(( &lt;cycle.*&gt;)? \[\d+\])\n", line)
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56 if not m:
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57 output.write(line)
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58 if line.startswith("Index by function name"):
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59 break
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60 continue
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61 prefix, fname, suffix = m.group(1, 2, 3)
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62 if fname not in labels:
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63 output.write(line)
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64 continue
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65 if line.startswith("["):
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66 output.write('%s<a name="call:%s" href="#flat:%s">%s</a>%s\n' %
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67 (prefix, fname, fname, fname, suffix))
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68 else:
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69 output.write('%s<a href="#call:%s">%s</a>%s\n' %
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70 (prefix, fname, fname, suffix))
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71 for line in input:
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72 for part in re.findall(r"(\w+(?:\.c)?|\W+)", line):
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73 if part in labels:
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74 part = '<a href="#call:%s">%s</a>' % (part, part)
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75 output.write(part)
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76 output.write(trailer)
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77 output.close()
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78 webbrowser.open("file:" + os.path.abspath(outputfilename))
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79
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981fff7363b9 [Patch #1005491 ] use __name__ == '__main__' in scripts
Andrew M. Kuchling <amk@amk.ca>
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80 if __name__ == '__main__':
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81 main()