This file can also be run as a script to install or upgrade setuptools.
"""
import sys
+
DEFAULT_VERSION = "0.6c5"
DEFAULT_URL = "http://cheeseshop.python.org/packages/%s/s/setuptools/" % sys.version[:3]
def use_setuptools(
- version=DEFAULT_VERSION, download_base=DEFAULT_URL, to_dir=os.curdir,
- download_delay=15
+ version=DEFAULT_VERSION, download_base=DEFAULT_URL, to_dir=os.curdir, min_version=None
):
"""Automatically find/download setuptools and make it available on sys.path
`version` should be a valid setuptools version number that is available
as an egg for download under the `download_base` URL (which should end with
a '/'). `to_dir` is the directory where setuptools will be downloaded, if
- it is not already available. If `download_delay` is specified, it should
- be the number of seconds that will be paused before initiating a download,
- should one be required. If an older version of setuptools is installed,
+ it is not already available. If an older version of setuptools is installed,
this routine will print a message to ``sys.stderr`` and raise SystemExit in
an attempt to abort the calling script.
"""
)
sys.exit(2)
except ImportError:
- egg = download_setuptools(version, download_base, to_dir, download_delay)
+ egg = download_setuptools(version, download_base, to_dir)
sys.path.insert(0, egg)
import setuptools; setuptools.bootstrap_install_from = egg
import pkg_resources
try:
- pkg_resources.require("setuptools>="+version)
+ if not min_version:
+ min_version = version
+ pkg_resources.require("setuptools>="+min_version)
except pkg_resources.VersionConflict, e:
# XXX could we install in a subprocess here?
"The required version of setuptools (>=%s) is not available, and\n"
"can't be installed while this script is running. Please install\n"
" a more recent version first.\n\n(Currently using %r)"
- ) % (version, e.args[0])
+ ) % (min_version, e.args[0])
sys.exit(2)
def download_setuptools(
- version=DEFAULT_VERSION, download_base=DEFAULT_URL, to_dir=os.curdir,
- delay = 15
+ version=DEFAULT_VERSION, download_base=DEFAULT_URL, to_dir=os.curdir
):
"""Download setuptools from a specified location and return its filename
`version` should be a valid setuptools version number that is available
as an egg for download under the `download_base` URL (which should end
with a '/'). `to_dir` is the directory where the egg will be downloaded.
- `delay` is the number of seconds to pause before an actual download attempt.
"""
import urllib2, shutil
egg_name = "setuptools-%s-py%s.egg" % (version,sys.version[:3])
if not os.path.exists(saveto): # Avoid repeated downloads
try:
from distutils import log
- if delay:
+ if True:
log.warn("""
---------------------------------------------------------------------------
This script requires setuptools version %s to run (even to display
help). I will attempt to download it for you (from
%s), but
you may need to enable firewall access for this script first.
-I will start the download in %d seconds.
(Note: if this machine does not have network access, please obtain the file
and place it in this directory before rerunning this script.)
---------------------------------------------------------------------------""",
- version, download_base, delay, url
- ); from time import sleep; sleep(delay)
+ version, download_base, url
+ );
log.warn("Downloading %s", url)
src = urllib2.urlopen(url)
# Read/write all in one block, so we don't create a corrupt file
except ImportError:
egg = None
try:
- egg = download_setuptools(version, delay=0)
+ egg = download_setuptools(version)
sys.path.insert(0,egg)
from setuptools.command.easy_install import main
return main(list(argv)+[egg]) # we're done here
from setuptools.command.easy_install import main
except ImportError:
from easy_install import main
- main(list(argv)+[download_setuptools(delay=0)])
+ main(list(argv)+[download_setuptools()])
sys.exit(0) # try to force an exit
else:
if argv: