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1 #!python
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2 """Bootstrap setuptools installation
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3
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4 If you want to use setuptools in your package's setup.py, just include this
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5 file in the same directory with it, and add this to the top of your setup.py::
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6
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7 from ez_setup import use_setuptools
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8 use_setuptools()
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9
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10 If you want to require a specific version of setuptools, set a download
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11 mirror, or use an alternate download directory, you can do so by supplying
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12 the appropriate options to ``use_setuptools()``.
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13
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14 This file can also be run as a script to install or upgrade setuptools.
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15 """
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16 import sys
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17 DEFAULT_VERSION = "0.6c9"
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18 DEFAULT_URL = "http://pypi.python.org/packages/%s/s/setuptools/" % sys.version[:3]
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19
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20 md5_data = {
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21 'setuptools-0.6b1-py2.3.egg': '8822caf901250d848b996b7f25c6e6ca',
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22 'setuptools-0.6b1-py2.4.egg': 'b79a8a403e4502fbb85ee3f1941735cb',
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23 'setuptools-0.6b2-py2.3.egg': '5657759d8a6d8fc44070a9d07272d99b',
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24 'setuptools-0.6b2-py2.4.egg': '4996a8d169d2be661fa32a6e52e4f82a',
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25 'setuptools-0.6b3-py2.3.egg': 'bb31c0fc7399a63579975cad9f5a0618',
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26 'setuptools-0.6b3-py2.4.egg': '38a8c6b3d6ecd22247f179f7da669fac',
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27 'setuptools-0.6b4-py2.3.egg': '62045a24ed4e1ebc77fe039aa4e6f7e5',
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28 'setuptools-0.6b4-py2.4.egg': '4cb2a185d228dacffb2d17f103b3b1c4',
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29 'setuptools-0.6c1-py2.3.egg': 'b3f2b5539d65cb7f74ad79127f1a908c',
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30 'setuptools-0.6c1-py2.4.egg': 'b45adeda0667d2d2ffe14009364f2a4b',
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31 'setuptools-0.6c2-py2.3.egg': 'f0064bf6aa2b7d0f3ba0b43f20817c27',
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32 'setuptools-0.6c2-py2.4.egg': '616192eec35f47e8ea16cd6a122b7277',
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33 'setuptools-0.6c3-py2.3.egg': 'f181fa125dfe85a259c9cd6f1d7b78fa',
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34 'setuptools-0.6c3-py2.4.egg': 'e0ed74682c998bfb73bf803a50e7b71e',
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35 'setuptools-0.6c3-py2.5.egg': 'abef16fdd61955514841c7c6bd98965e',
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36 'setuptools-0.6c4-py2.3.egg': 'b0b9131acab32022bfac7f44c5d7971f',
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37 'setuptools-0.6c4-py2.4.egg': '2a1f9656d4fbf3c97bf946c0a124e6e2',
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38 'setuptools-0.6c4-py2.5.egg': '8f5a052e32cdb9c72bcf4b5526f28afc',
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39 'setuptools-0.6c5-py2.3.egg': 'ee9fd80965da04f2f3e6b3576e9d8167',
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40 'setuptools-0.6c5-py2.4.egg': 'afe2adf1c01701ee841761f5bcd8aa64',
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41 'setuptools-0.6c5-py2.5.egg': 'a8d3f61494ccaa8714dfed37bccd3d5d',
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42 'setuptools-0.6c6-py2.3.egg': '35686b78116a668847237b69d549ec20',
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43 'setuptools-0.6c6-py2.4.egg': '3c56af57be3225019260a644430065ab',
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44 'setuptools-0.6c6-py2.5.egg': 'b2f8a7520709a5b34f80946de5f02f53',
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45 'setuptools-0.6c7-py2.3.egg': '209fdf9adc3a615e5115b725658e13e2',
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46 'setuptools-0.6c7-py2.4.egg': '5a8f954807d46a0fb67cf1f26c55a82e',
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47 'setuptools-0.6c7-py2.5.egg': '45d2ad28f9750e7434111fde831e8372',
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48 'setuptools-0.6c8-py2.3.egg': '50759d29b349db8cfd807ba8303f1902',
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49 'setuptools-0.6c8-py2.4.egg': 'cba38d74f7d483c06e9daa6070cce6de',
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50 'setuptools-0.6c8-py2.5.egg': '1721747ee329dc150590a58b3e1ac95b',
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51 'setuptools-0.6c9-py2.3.egg': 'a83c4020414807b496e4cfbe08507c03',
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52 'setuptools-0.6c9-py2.4.egg': '260a2be2e5388d66bdaee06abec6342a',
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53 'setuptools-0.6c9-py2.5.egg': 'fe67c3e5a17b12c0e7c541b7ea43a8e6',
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54 'setuptools-0.6c9-py2.6.egg': 'ca37b1ff16fa2ede6e19383e7b59245a',
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55 }
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56
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57 import sys, os
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58 try: from hashlib import md5
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59 except ImportError: from md5 import md5
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60
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61 def _validate_md5(egg_name, data):
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62 if egg_name in md5_data:
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63 digest = md5(data).hexdigest()
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64 if digest != md5_data[egg_name]:
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65 print >>sys.stderr, (
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66 "md5 validation of %s failed! (Possible download problem?)"
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67 % egg_name
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68 )
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69 sys.exit(2)
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70 return data
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71
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72 def use_setuptools(
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73 version=DEFAULT_VERSION, download_base=DEFAULT_URL, to_dir=os.curdir,
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74 download_delay=15
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75 ):
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76 """Automatically find/download setuptools and make it available on sys.path
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77
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78 `version` should be a valid setuptools version number that is available
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79 as an egg for download under the `download_base` URL (which should end with
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80 a '/'). `to_dir` is the directory where setuptools will be downloaded, if
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81 it is not already available. If `download_delay` is specified, it should
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82 be the number of seconds that will be paused before initiating a download,
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83 should one be required. If an older version of setuptools is installed,
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84 this routine will print a message to ``sys.stderr`` and raise SystemExit in
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85 an attempt to abort the calling script.
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86 """
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87 was_imported = 'pkg_resources' in sys.modules or 'setuptools' in sys.modules
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88 def do_download():
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89 egg = download_setuptools(version, download_base, to_dir, download_delay)
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90 sys.path.insert(0, egg)
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91 import setuptools; setuptools.bootstrap_install_from = egg
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92 try:
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93 import pkg_resources
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94 except ImportError:
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95 return do_download()
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96 try:
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97 pkg_resources.require("setuptools>="+version); return
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98 except pkg_resources.VersionConflict, e:
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99 if was_imported:
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100 print >>sys.stderr, (
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101 "The required version of setuptools (>=%s) is not available, and\n"
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102 "can't be installed while this script is running. Please install\n"
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103 " a more recent version first, using 'easy_install -U setuptools'."
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104 "\n\n(Currently using %r)"
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105 ) % (version, e.args[0])
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106 sys.exit(2)
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107 else:
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108 del pkg_resources, sys.modules['pkg_resources'] # reload ok
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109 return do_download()
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110 except pkg_resources.DistributionNotFound:
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111 return do_download()
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112
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113 def download_setuptools(
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114 version=DEFAULT_VERSION, download_base=DEFAULT_URL, to_dir=os.curdir,
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115 delay = 15
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116 ):
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117 """Download setuptools from a specified location and return its filename
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118
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119 `version` should be a valid setuptools version number that is available
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120 as an egg for download under the `download_base` URL (which should end
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121 with a '/'). `to_dir` is the directory where the egg will be downloaded.
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122 `delay` is the number of seconds to pause before an actual download attempt.
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123 """
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124 import urllib2, shutil
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125 egg_name = "setuptools-%s-py%s.egg" % (version,sys.version[:3])
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126 url = download_base + egg_name
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127 saveto = os.path.join(to_dir, egg_name)
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128 src = dst = None
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129 if not os.path.exists(saveto): # Avoid repeated downloads
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130 try:
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131 from distutils import log
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132 if delay:
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133 log.warn("""
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134 ---------------------------------------------------------------------------
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135 This script requires setuptools version %s to run (even to display
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136 help). I will attempt to download it for you (from
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137 %s), but
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138 you may need to enable firewall access for this script first.
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139 I will start the download in %d seconds.
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140
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141 (Note: if this machine does not have network access, please obtain the file
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142
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143 %s
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144
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145 and place it in this directory before rerunning this script.)
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146 ---------------------------------------------------------------------------""",
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147 version, download_base, delay, url
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148 ); from time import sleep; sleep(delay)
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149 log.warn("Downloading %s", url)
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150 src = urllib2.urlopen(url)
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151 # Read/write all in one block, so we don't create a corrupt file
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152 # if the download is interrupted.
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153 data = _validate_md5(egg_name, src.read())
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154 dst = open(saveto,"wb"); dst.write(data)
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155 finally:
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156 if src: src.close()
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157 if dst: dst.close()
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158 return os.path.realpath(saveto)
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159
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194
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195 def main(argv, version=DEFAULT_VERSION):
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196 """Install or upgrade setuptools and EasyInstall"""
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197 try:
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198 import setuptools
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199 except ImportError:
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200 egg = None
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201 try:
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202 egg = download_setuptools(version, delay=0)
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203 sys.path.insert(0,egg)
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204 from setuptools.command.easy_install import main
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205 return main(list(argv)+[egg]) # we're done here
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206 finally:
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207 if egg and os.path.exists(egg):
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208 os.unlink(egg)
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209 else:
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210 if setuptools.__version__ == '0.0.1':
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211 print >>sys.stderr, (
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212 "You have an obsolete version of setuptools installed. Please\n"
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213 "remove it from your system entirely before rerunning this script."
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214 )
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215 sys.exit(2)
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216
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217 req = "setuptools>="+version
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218 import pkg_resources
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219 try:
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220 pkg_resources.require(req)
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221 except pkg_resources.VersionConflict:
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222 try:
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223 from setuptools.command.easy_install import main
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224 except ImportError:
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225 from easy_install import main
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226 main(list(argv)+[download_setuptools(delay=0)])
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227 sys.exit(0) # try to force an exit
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228 else:
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229 if argv:
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230 from setuptools.command.easy_install import main
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231 main(argv)
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232 else:
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233 print "Setuptools version",version,"or greater has been installed."
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234 print '(Run "ez_setup.py -U setuptools" to reinstall or upgrade.)'
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235
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236 def update_md5(filenames):
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237 """Update our built-in md5 registry"""
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238
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239 import re
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240
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241 for name in filenames:
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242 base = os.path.basename(name)
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243 f = open(name,'rb')
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244 md5_data[base] = md5(f.read()).hexdigest()
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245 f.close()
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246
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247 data = [" %r: %r,\n" % it for it in md5_data.items()]
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248 data.sort()
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249 repl = "".join(data)
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250
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251 import inspect
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252 srcfile = inspect.getsourcefile(sys.modules[__name__])
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253 f = open(srcfile, 'rb'); src = f.read(); f.close()
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254
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255 match = re.search("\nmd5_data = {\n([^}]+)}", src)
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256 if not match:
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257 print >>sys.stderr, "Internal error!"
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258 sys.exit(2)
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259
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260 src = src[:match.start(1)] + repl + src[match.end(1):]
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261 f = open(srcfile,'w')
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262 f.write(src)
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263 f.close()
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264
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265
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266 if __name__=='__main__':
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267 if len(sys.argv)>2 and sys.argv[1]=='--md5update':
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268 update_md5(sys.argv[2:])
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269 else:
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270 main(sys.argv[1:])
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271
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