Mercurial > cpython-lru_cache-weakref

annotate Tools/scripts/byext.py @ 27998:e27f58a50737 legacy-trunk

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SF bug #690377: Dud footnote reference in distutils docs
author Raymond Hettinger <python@rcn.com>
date Fri, 21 Feb 2003 02:47:09 +0000
parents 8ed472e5bcd4
children ba2d8921a8da
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
26999
8ed472e5bcd4 Silly little script to print statistics (files, lines, words) by
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1 #! /usr/bin/env python
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2
8ed472e5bcd4 Silly little script to print statistics (files, lines, words) by
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3 """Show file statistics by extension."""
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4
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5 import os
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6 import sys
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7
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8 class Stats:
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9
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10 def __init__(self):
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11 self.stats = {}
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12
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13 def statargs(self, args):
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14 for arg in args:
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15 if os.path.isdir(arg):
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16 self.statdir(arg)
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17 elif os.path.isfile(arg):
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18 self.statfile(arg)
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19 else:
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20 sys.stderr.write("Can't find %s\n" % file)
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21 self.addstats("<???>", "unknown", 1)
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22
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23 def statdir(self, dir):
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24 self.addstats("<dir>", "dirs", 1)
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25 try:
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26 names = os.listdir(dir)
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27 except os.error, err:
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28 sys.stderr.write("Can't list %s: %s\n" % (file, err))
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29 self.addstats(ext, "unlistable", 1)
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30 return
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31 names.sort()
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32 for name in names:
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33 full = os.path.join(dir, name)
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34 if os.path.islink(full):
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35 self.addstats("<lnk>", "links", 1)
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36 elif os.path.isdir(full):
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37 self.statdir(full)
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38 else:
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39 self.statfile(full)
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40
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41 def statfile(self, file):
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42 head, ext = os.path.splitext(file)
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43 head, base = os.path.split(file)
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44 if ext == base:
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45 ext = "" # .cvsignore is deemed not to have an extension
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46 self.addstats(ext, "files", 1)
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47 try:
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48 f = open(file, "rb")
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49 except IOError, err:
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50 sys.stderr.write("Can't open %s: %s\n" % (file, err))
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51 self.addstats(ext, "unopenable", 1)
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52 return
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53 data = f.read()
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54 f.close()
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55 self.addstats(ext, "bytes", len(data))
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56 if '\0' in data:
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57 self.addstats(ext, "binary", 1)
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58 return
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59 if not data:
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60 self.addstats(ext, "empty", 1)
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61 #self.addstats(ext, "chars", len(data))
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62 lines = data.splitlines()
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63 self.addstats(ext, "lines", len(lines))
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64 del lines
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65 words = data.split()
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66 self.addstats(ext, "words", len(words))
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67
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68 def addstats(self, ext, key, n):
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69 d = self.stats.setdefault(ext, {})
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70 d[key] = d.get(key, 0) + n
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71
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72 def report(self):
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73 totals = {}
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74 exts = self.stats.keys()
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75 exts.sort()
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76 # Get the column keys
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77 columns = {}
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78 for ext in exts:
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79 columns.update(self.stats[ext])
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80 cols = columns.keys()
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81 cols.sort()
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82 minwidth = 7
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83 extwidth = max([len(ext) for ext in exts])
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84 print "%*s" % (extwidth, "ext"),
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85 for col in cols:
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86 width = max(len(col), minwidth)
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87 print "%*s" % (width, col),
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88 print
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89 for ext in exts:
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90 print "%*s" % (extwidth, ext),
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91 for col in cols:
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92 width = max(len(col), minwidth)
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93 value = self.stats[ext].get(col)
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94 if value is None:
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95 s = ""
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96 else:
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97 s = "%d" % value
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98 totals[col] = totals.get(col, 0) + value
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99 print "%*s" % (width, s),
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100 print
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101 print "%*s" % (extwidth, "TOTAL"),
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102 for col in cols:
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103 width = max(len(col), minwidth)
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104 print "%*s" % (width, totals[col]),
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105 print
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106
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107 def main():
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108 args = sys.argv[1:]
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109 if not args:
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110 args = [os.curdir]
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111 s = Stats()
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112 s.statargs(args)
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113 s.report()
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114
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115 if __name__ == "__main__":
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116 main()