2 """Bootstrap setuptools installation
4 If you want to use setuptools in your package's setup.py, just include this
5 file in the same directory with it, and add this to the top of your setup.py::
7 from ez_setup import use_setuptools
10 If you want to require a specific version of setuptools, set a download
11 mirror, or use an alternate download directory, you can do so by supplying
12 the appropriate options to ``use_setuptools()``.
14 This file can also be run as a script to install or upgrade setuptools.
18 DEFAULT_VERSION = "0.6c3"
19 DEFAULT_URL = "http://cheeseshop.python.org/packages/%s/s/setuptools/" % sys.version[:3]
22 'setuptools-0.6b1-py2.3.egg': '8822caf901250d848b996b7f25c6e6ca',
23 'setuptools-0.6b1-py2.4.egg': 'b79a8a403e4502fbb85ee3f1941735cb',
24 'setuptools-0.6b2-py2.3.egg': '5657759d8a6d8fc44070a9d07272d99b',
25 'setuptools-0.6b2-py2.4.egg': '4996a8d169d2be661fa32a6e52e4f82a',
26 'setuptools-0.6b3-py2.3.egg': 'bb31c0fc7399a63579975cad9f5a0618',
27 'setuptools-0.6b3-py2.4.egg': '38a8c6b3d6ecd22247f179f7da669fac',
28 'setuptools-0.6b4-py2.3.egg': '62045a24ed4e1ebc77fe039aa4e6f7e5',
29 'setuptools-0.6b4-py2.4.egg': '4cb2a185d228dacffb2d17f103b3b1c4',
30 'setuptools-0.6c1-py2.3.egg': 'b3f2b5539d65cb7f74ad79127f1a908c',
31 'setuptools-0.6c1-py2.4.egg': 'b45adeda0667d2d2ffe14009364f2a4b',
32 'setuptools-0.6c2-py2.3.egg': 'f0064bf6aa2b7d0f3ba0b43f20817c27',
33 'setuptools-0.6c2-py2.4.egg': '616192eec35f47e8ea16cd6a122b7277',
34 'setuptools-0.6c3-py2.3.egg': 'f181fa125dfe85a259c9cd6f1d7b78fa',
35 'setuptools-0.6c3-py2.4.egg': 'e0ed74682c998bfb73bf803a50e7b71e',
36 'setuptools-0.6c3-py2.5.egg': 'abef16fdd61955514841c7c6bd98965e',
37 'setuptools-0.6c4-py2.3.egg': 'b0b9131acab32022bfac7f44c5d7971f',
38 'setuptools-0.6c4-py2.4.egg': '2a1f9656d4fbf3c97bf946c0a124e6e2',
39 'setuptools-0.6c4-py2.5.egg': '8f5a052e32cdb9c72bcf4b5526f28afc',
40 'setuptools-0.6c5-py2.3.egg': 'ee9fd80965da04f2f3e6b3576e9d8167',
41 'setuptools-0.6c5-py2.4.egg': 'afe2adf1c01701ee841761f5bcd8aa64',
42 'setuptools-0.6c5-py2.5.egg': 'a8d3f61494ccaa8714dfed37bccd3d5d',
47 def _validate_md5(egg_name, data):
48 if egg_name in md5_data:
50 digest = md5(data).hexdigest()
51 if digest != md5_data[egg_name]:
53 "md5 validation of %s failed! (Possible download problem?)"
61 version=DEFAULT_VERSION, download_base=DEFAULT_URL, to_dir=os.curdir,
64 """Automatically find/download setuptools and make it available on sys.path
66 `version` should be a valid setuptools version number that is available
67 as an egg for download under the `download_base` URL (which should end with
68 a '/'). `to_dir` is the directory where setuptools will be downloaded, if
69 it is not already available. If `download_delay` is specified, it should
70 be the number of seconds that will be paused before initiating a download,
71 should one be required. If an older version of setuptools is installed,
72 this routine will print a message to ``sys.stderr`` and raise SystemExit in
73 an attempt to abort the calling script.
77 if setuptools.__version__ == '0.0.1':
79 "You have an obsolete version of setuptools installed. Please\n"
80 "remove it from your system entirely before rerunning this script."
84 egg = download_setuptools(version, download_base, to_dir, download_delay)
85 sys.path.insert(0, egg)
86 import setuptools; setuptools.bootstrap_install_from = egg
90 pkg_resources.require("setuptools>="+version)
92 except pkg_resources.VersionConflict, e:
93 # XXX could we install in a subprocess here?
95 "The required version of setuptools (>=%s) is not available, and\n"
96 "can't be installed while this script is running. Please install\n"
97 " a more recent version first.\n\n(Currently using %r)"
98 ) % (version, e.args[0])
101 def download_setuptools(
102 version=DEFAULT_VERSION, download_base=DEFAULT_URL, to_dir=os.curdir
104 """Download setuptools from a specified location and return its filename
106 `version` should be a valid setuptools version number that is available
107 as an egg for download under the `download_base` URL (which should end
108 with a '/'). `to_dir` is the directory where the egg will be downloaded.
109 `delay` is the number of seconds to pause before an actual download attempt.
111 import urllib2, shutil
112 egg_name = "setuptools-%s-py%s.egg" % (version,sys.version[:3])
113 url = download_base + egg_name
114 saveto = os.path.join(to_dir, egg_name)
116 if not os.path.exists(saveto): # Avoid repeated downloads
118 from distutils import log
121 ---------------------------------------------------------------------------
122 This script requires setuptools version %s to run (even to display
123 help). I will attempt to download it for you (from
125 you may need to enable firewall access for this script first.
127 (Note: if this machine does not have network access, please obtain the file
131 and place it in this directory before rerunning this script.)
132 ---------------------------------------------------------------------------""",
133 version, download_base, url
135 log.warn("Downloading %s", url)
136 src = urllib2.urlopen(url)
137 # Read/write all in one block, so we don't create a corrupt file
138 # if the download is interrupted.
139 data = _validate_md5(egg_name, src.read())
140 dst = open(saveto,"wb"); dst.write(data)
144 return os.path.realpath(saveto)
146 def main(argv, version=DEFAULT_VERSION):
147 """Install or upgrade setuptools and EasyInstall"""
154 egg = download_setuptools(version, delay=0)
155 sys.path.insert(0,egg)
156 from setuptools.command.easy_install import main
157 return main(list(argv)+[egg]) # we're done here
159 if egg and os.path.exists(egg):
162 if setuptools.__version__ == '0.0.1':
163 # tell the user to uninstall obsolete version
164 use_setuptools(version)
166 req = "setuptools>="+version
169 pkg_resources.require(req)
170 except pkg_resources.VersionConflict:
172 from setuptools.command.easy_install import main
174 from easy_install import main
175 main(list(argv)+[download_setuptools(delay=0)])
176 sys.exit(0) # try to force an exit
179 from setuptools.command.easy_install import main
182 print "Setuptools version",version,"or greater has been installed."
183 print '(Run "ez_setup.py -U setuptools" to reinstall or upgrade.)'
187 def update_md5(filenames):
188 """Update our built-in md5 registry"""
193 for name in filenames:
194 base = os.path.basename(name)
196 md5_data[base] = md5(f.read()).hexdigest()
199 data = [" %r: %r,\n" % it for it in md5_data.items()]
204 srcfile = inspect.getsourcefile(sys.modules[__name__])
205 f = open(srcfile, 'rb'); src = f.read(); f.close()
207 match = re.search("\nmd5_data = {\n([^}]+)}", src)
209 print >>sys.stderr, "Internal error!"
212 src = src[:match.start(1)] + repl + src[match.end(1):]
213 f = open(srcfile,'w')
218 if __name__=='__main__':
219 if len(sys.argv)>2 and sys.argv[1]=='--md5update':
220 update_md5(sys.argv[2:])