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 = "0.6a10" |
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18 | DEFAULT_URL = "http://cheeseshop.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-0.5a13-py2.3.egg': '85edcf0ef39bab66e130d3f38f578c86', |
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22 | 'setuptools-0.5a13-py2.4.egg': 'ede4be600e3890e06d4ee5e0148e092a', |
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23 | 'setuptools-0.6a1-py2.3.egg': 'ee819a13b924d9696b0d6ca6d1c5833d', |
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24 | 'setuptools-0.6a1-py2.4.egg': '8256b5f1cd9e348ea6877b5ddd56257d', |
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25 | 'setuptools-0.6a10-py2.3.egg': '162d8357f1aff2b0349c6c247ee62987', |
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26 | 'setuptools-0.6a10-py2.4.egg': '803a2d8db501c1ac3b5b6fb4e907f788', |
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27 | 'setuptools-0.6a10dev_r42346-py2.3.egg': 'a7899272cfceb6aa60094ae8928b8077', |
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28 | 'setuptools-0.6a10dev_r42346-py2.4.egg': '5d42a64adca9aedb409f83ecf22156a5', |
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29 | 'setuptools-0.6a2-py2.3.egg': 'b98da449da411267c37a738f0ab625ba', |
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30 | 'setuptools-0.6a2-py2.4.egg': 'be5b88bc30aed63fdefd2683be135c3b', |
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31 | 'setuptools-0.6a3-py2.3.egg': 'ee0e325de78f23aab79d33106dc2a8c8', |
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32 | 'setuptools-0.6a3-py2.4.egg': 'd95453d525a456d6c23e7a5eea89a063', |
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33 | 'setuptools-0.6a4-py2.3.egg': 'e958cbed4623bbf47dd1f268b99d7784', |
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34 | 'setuptools-0.6a4-py2.4.egg': '7f33c3ac2ef1296f0ab4fac1de4767d8', |
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35 | 'setuptools-0.6a5-py2.3.egg': '748408389c49bcd2d84f6ae0b01695b1', |
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36 | 'setuptools-0.6a5-py2.4.egg': '999bacde623f4284bfb3ea77941d2627', |
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37 | 'setuptools-0.6a6-py2.3.egg': '7858139f06ed0600b0d9383f36aca24c', |
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38 | 'setuptools-0.6a6-py2.4.egg': 'c10d20d29acebce0dc76219dc578d058', |
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39 | 'setuptools-0.6a7-py2.3.egg': 'cfc4125ddb95c07f9500adc5d6abef6f', |
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40 | 'setuptools-0.6a7-py2.4.egg': 'c6d62dab4461f71aed943caea89e6f20', |
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41 | 'setuptools-0.6a8-py2.3.egg': '2f18eaaa3f544f5543ead4a68f3b2e1a', |
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42 | 'setuptools-0.6a8-py2.4.egg': '799018f2894f14c9f8bcb2b34e69b391', |
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43 | 'setuptools-0.6a9-py2.3.egg': '8e438ad70438b07b0d8f82cae42b278f', |
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44 | 'setuptools-0.6a9-py2.4.egg': '8f6e01fc12fb1cd006dc0d6c04327ec1', |
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45 | } |
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46 | |
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47 | import sys, os |
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48 | |
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49 | def _validate_md5(egg_name, data): |
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50 | if egg_name in md5_data: |
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51 | from md5 import md5 |
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52 | digest = md5(data).hexdigest() |
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53 | if digest != md5_data[egg_name]: |
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54 | print >>sys.stderr, ( |
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55 | "md5 validation of %s failed! (Possible download problem?)" |
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56 | % egg_name |
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57 | ) |
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58 | sys.exit(2) |
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59 | return data |
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60 | |
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61 | |
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62 | def use_setuptools( |
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63 | version=DEFAULT_VERSION, download_base=DEFAULT_URL, to_dir=os.curdir, |
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64 | download_delay=15 |
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65 | ): |
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66 | """Automatically find/download setuptools and make it available on sys.path |
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67 | |
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68 | `version` should be a valid setuptools version number that is available |
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69 | as an egg for download under the `download_base` URL (which should end with |
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70 | a '/'). `to_dir` is the directory where setuptools will be downloaded, if |
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71 | it is not already available. If `download_delay` is specified, it should |
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72 | be the number of seconds that will be paused before initiating a download, |
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73 | should one be required. If an older version of setuptools is installed, |
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74 | this routine will print a message to ``sys.stderr`` and raise SystemExit in |
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75 | an attempt to abort the calling script. |
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76 | """ |
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77 | try: |
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78 | import setuptools |
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79 | if setuptools.__version__ == '0.0.1': |
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80 | print >>sys.stderr, ( |
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81 | "You have an obsolete version of setuptools installed. Please\n" |
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82 | "remove it from your system entirely before rerunning this script." |
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83 | ) |
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84 | sys.exit(2) |
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85 | except ImportError: |
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86 | egg = download_setuptools(version, download_base, to_dir, download_delay) |
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87 | sys.path.insert(0, egg) |
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88 | import setuptools; setuptools.bootstrap_install_from = egg |
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89 | |
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90 | import pkg_resources |
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91 | try: |
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92 | pkg_resources.require("setuptools>="+version) |
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93 | |
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94 | except pkg_resources.VersionConflict: |
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95 | # XXX could we install in a subprocess here? |
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96 | print >>sys.stderr, ( |
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97 | "The required version of setuptools (>=%s) is not available, and\n" |
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98 | "can't be installed while this script is running. Please install\n" |
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99 | " a more recent version first." |
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100 | ) % version |
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101 | sys.exit(2) |
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102 | |
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103 | def download_setuptools( |
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104 | version=DEFAULT_VERSION, download_base=DEFAULT_URL, to_dir=os.curdir, |
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105 | delay = 15 |
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106 | ): |
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107 | """Download setuptools from a specified location and return its filename |
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108 | |
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109 | `version` should be a valid setuptools version number that is available |
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110 | as an egg for download under the `download_base` URL (which should end |
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111 | with a '/'). `to_dir` is the directory where the egg will be downloaded. |
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112 | `delay` is the number of seconds to pause before an actual download attempt. |
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113 | """ |
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114 | import urllib2, shutil |
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115 | egg_name = "setuptools-%s-py%s.egg" % (version,sys.version[:3]) |
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116 | url = download_base + egg_name |
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117 | saveto = os.path.join(to_dir, egg_name) |
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118 | src = dst = None |
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119 | if not os.path.exists(saveto): # Avoid repeated downloads |
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120 | try: |
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121 | from distutils import log |
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122 | if delay: |
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123 | log.warn(""" |
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124 | --------------------------------------------------------------------------- |
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125 | This script requires setuptools version %s to run (even to display |
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126 | help). I will attempt to download it for you (from |
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127 | %s), but |
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128 | you may need to enable firewall access for this script first. |
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129 | I will start the download in %d seconds. |
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130 | |
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131 | (Note: if this machine does not have network access, please obtain the file |
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132 | |
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133 | %s |
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134 | |
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135 | and place it in this directory before rerunning this script.) |
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136 | ---------------------------------------------------------------------------""", |
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137 | version, download_base, delay, url |
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138 | ); from time import sleep; sleep(delay) |
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139 | log.warn("Downloading %s", url) |
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140 | src = urllib2.urlopen(url) |
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141 | # Read/write all in one block, so we don't create a corrupt file |
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142 | # if the download is interrupted. |
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143 | data = _validate_md5(egg_name, src.read()) |
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144 | dst = open(saveto,"wb"); dst.write(data) |
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145 | finally: |
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146 | if src: src.close() |
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147 | if dst: dst.close() |
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148 | return os.path.realpath(saveto) |
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149 | |
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150 | def main(argv, version=DEFAULT_VERSION): |
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151 | """Install or upgrade setuptools and EasyInstall""" |
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152 | |
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153 | try: |
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154 | import setuptools |
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155 | except ImportError: |
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156 | import tempfile, shutil |
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157 | tmpdir = tempfile.mkdtemp(prefix="easy_install-") |
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158 | try: |
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159 | egg = download_setuptools(version, to_dir=tmpdir, delay=0) |
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160 | sys.path.insert(0,egg) |
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161 | from setuptools.command.easy_install import main |
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162 | main(list(argv)+[egg]) |
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163 | finally: |
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164 | shutil.rmtree(tmpdir) |
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165 | else: |
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166 | if setuptools.__version__ == '0.0.1': |
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167 | # tell the user to uninstall obsolete version |
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168 | use_setuptools(version) |
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169 | |
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170 | req = "setuptools>="+version |
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171 | import pkg_resources |
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172 | try: |
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173 | pkg_resources.require(req) |
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174 | except pkg_resources.VersionConflict: |
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175 | try: |
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176 | from setuptools.command.easy_install import main |
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177 | except ImportError: |
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178 | from easy_install import main |
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179 | main(list(argv)+[download_setuptools(delay=0)]) |
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180 | sys.exit(0) # try to force an exit |
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181 | else: |
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182 | if argv: |
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183 | from setuptools.command.easy_install import main |
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184 | main(argv) |
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185 | else: |
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186 | print "Setuptools version",version,"or greater has been installed." |
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187 | print '(Run "ez_setup.py -U setuptools" to reinstall or upgrade.)' |
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188 | |
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189 | |
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190 | |
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191 | def update_md5(filenames): |
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192 | """Update our built-in md5 registry""" |
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193 | |
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194 | import re |
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195 | from md5 import md5 |
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196 | |
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197 | for name in filenames: |
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198 | base = os.path.basename(name) |
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199 | f = open(name,'rb') |
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200 | md5_data[base] = md5(f.read()).hexdigest() |
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201 | f.close() |
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202 | |
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203 | data = [" %r: %r,\n" % it for it in md5_data.items()] |
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204 | data.sort() |
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205 | repl = "".join(data) |
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206 | |
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207 | import inspect |
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208 | srcfile = inspect.getsourcefile(sys.modules[__name__]) |
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209 | f = open(srcfile, 'rb'); src = f.read(); f.close() |
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210 | |
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211 | match = re.search("\nmd5_data = {\n([^}]+)}", src) |
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212 | if not match: |
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213 | print >>sys.stderr, "Internal error!" |
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214 | sys.exit(2) |
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215 | |
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216 | src = src[:match.start(1)] + repl + src[match.end(1):] |
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217 | f = open(srcfile,'w') |
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218 | f.write(src) |
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219 | f.close() |
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220 | |
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221 | |
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222 | if __name__=='__main__': |
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223 | if len(sys.argv)>2 and sys.argv[1]=='--md5update': |
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224 | update_md5(sys.argv[2:]) |
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225 | else: |
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226 | main(sys.argv[1:]) |
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227 | |
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228 | |
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229 | |
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230 | |
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231 | |
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