add hg and python
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cinap_lenrek
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242
sys/lib/python/distutils/core.py
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242
sys/lib/python/distutils/core.py
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"""distutils.core
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The only module that needs to be imported to use the Distutils; provides
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the 'setup' function (which is to be called from the setup script). Also
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indirectly provides the Distribution and Command classes, although they are
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really defined in distutils.dist and distutils.cmd.
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"""
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# This module should be kept compatible with Python 2.1.
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__revision__ = "$Id: core.py 38672 2005-03-20 22:19:47Z fdrake $"
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import sys, os
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from types import *
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from distutils.debug import DEBUG
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from distutils.errors import *
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from distutils.util import grok_environment_error
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# Mainly import these so setup scripts can "from distutils.core import" them.
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from distutils.dist import Distribution
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from distutils.cmd import Command
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from distutils.extension import Extension
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# This is a barebones help message generated displayed when the user
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# runs the setup script with no arguments at all. More useful help
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# is generated with various --help options: global help, list commands,
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# and per-command help.
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USAGE = """\
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usage: %(script)s [global_opts] cmd1 [cmd1_opts] [cmd2 [cmd2_opts] ...]
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or: %(script)s --help [cmd1 cmd2 ...]
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or: %(script)s --help-commands
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or: %(script)s cmd --help
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"""
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def gen_usage (script_name):
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script = os.path.basename(script_name)
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return USAGE % vars()
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# Some mild magic to control the behaviour of 'setup()' from 'run_setup()'.
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_setup_stop_after = None
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_setup_distribution = None
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# Legal keyword arguments for the setup() function
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setup_keywords = ('distclass', 'script_name', 'script_args', 'options',
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'name', 'version', 'author', 'author_email',
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'maintainer', 'maintainer_email', 'url', 'license',
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'description', 'long_description', 'keywords',
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'platforms', 'classifiers', 'download_url',
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'requires', 'provides', 'obsoletes',
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)
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# Legal keyword arguments for the Extension constructor
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extension_keywords = ('name', 'sources', 'include_dirs',
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'define_macros', 'undef_macros',
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'library_dirs', 'libraries', 'runtime_library_dirs',
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'extra_objects', 'extra_compile_args', 'extra_link_args',
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'swig_opts', 'export_symbols', 'depends', 'language')
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def setup (**attrs):
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"""The gateway to the Distutils: do everything your setup script needs
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to do, in a highly flexible and user-driven way. Briefly: create a
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Distribution instance; find and parse config files; parse the command
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line; run each Distutils command found there, customized by the options
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supplied to 'setup()' (as keyword arguments), in config files, and on
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the command line.
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The Distribution instance might be an instance of a class supplied via
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the 'distclass' keyword argument to 'setup'; if no such class is
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supplied, then the Distribution class (in dist.py) is instantiated.
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All other arguments to 'setup' (except for 'cmdclass') are used to set
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attributes of the Distribution instance.
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The 'cmdclass' argument, if supplied, is a dictionary mapping command
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names to command classes. Each command encountered on the command line
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will be turned into a command class, which is in turn instantiated; any
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class found in 'cmdclass' is used in place of the default, which is
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(for command 'foo_bar') class 'foo_bar' in module
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'distutils.command.foo_bar'. The command class must provide a
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'user_options' attribute which is a list of option specifiers for
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'distutils.fancy_getopt'. Any command-line options between the current
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and the next command are used to set attributes of the current command
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object.
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When the entire command-line has been successfully parsed, calls the
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'run()' method on each command object in turn. This method will be
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driven entirely by the Distribution object (which each command object
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has a reference to, thanks to its constructor), and the
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command-specific options that became attributes of each command
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object.
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"""
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global _setup_stop_after, _setup_distribution
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# Determine the distribution class -- either caller-supplied or
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# our Distribution (see below).
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klass = attrs.get('distclass')
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if klass:
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del attrs['distclass']
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else:
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klass = Distribution
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if not attrs.has_key('script_name'):
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attrs['script_name'] = os.path.basename(sys.argv[0])
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if not attrs.has_key('script_args'):
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attrs['script_args'] = sys.argv[1:]
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# Create the Distribution instance, using the remaining arguments
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# (ie. everything except distclass) to initialize it
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try:
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_setup_distribution = dist = klass(attrs)
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except DistutilsSetupError, msg:
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if attrs.has_key('name'):
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raise SystemExit, "error in %s setup command: %s" % \
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(attrs['name'], msg)
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else:
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raise SystemExit, "error in setup command: %s" % msg
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if _setup_stop_after == "init":
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return dist
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# Find and parse the config file(s): they will override options from
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# the setup script, but be overridden by the command line.
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dist.parse_config_files()
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if DEBUG:
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print "options (after parsing config files):"
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dist.dump_option_dicts()
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if _setup_stop_after == "config":
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return dist
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# Parse the command line; any command-line errors are the end user's
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# fault, so turn them into SystemExit to suppress tracebacks.
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try:
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ok = dist.parse_command_line()
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except DistutilsArgError, msg:
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raise SystemExit, gen_usage(dist.script_name) + "\nerror: %s" % msg
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if DEBUG:
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print "options (after parsing command line):"
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dist.dump_option_dicts()
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if _setup_stop_after == "commandline":
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return dist
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# And finally, run all the commands found on the command line.
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if ok:
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try:
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dist.run_commands()
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except KeyboardInterrupt:
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raise SystemExit, "interrupted"
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except (IOError, os.error), exc:
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error = grok_environment_error(exc)
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if DEBUG:
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sys.stderr.write(error + "\n")
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raise
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else:
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raise SystemExit, error
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except (DistutilsError,
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CCompilerError), msg:
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if DEBUG:
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raise
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else:
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raise SystemExit, "error: " + str(msg)
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return dist
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# setup ()
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def run_setup (script_name, script_args=None, stop_after="run"):
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"""Run a setup script in a somewhat controlled environment, and
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return the Distribution instance that drives things. This is useful
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if you need to find out the distribution meta-data (passed as
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keyword args from 'script' to 'setup()', or the contents of the
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config files or command-line.
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'script_name' is a file that will be run with 'execfile()';
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'sys.argv[0]' will be replaced with 'script' for the duration of the
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call. 'script_args' is a list of strings; if supplied,
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'sys.argv[1:]' will be replaced by 'script_args' for the duration of
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the call.
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'stop_after' tells 'setup()' when to stop processing; possible
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values:
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init
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stop after the Distribution instance has been created and
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populated with the keyword arguments to 'setup()'
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config
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stop after config files have been parsed (and their data
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stored in the Distribution instance)
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commandline
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stop after the command-line ('sys.argv[1:]' or 'script_args')
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have been parsed (and the data stored in the Distribution)
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run [default]
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stop after all commands have been run (the same as if 'setup()'
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had been called in the usual way
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Returns the Distribution instance, which provides all information
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used to drive the Distutils.
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"""
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if stop_after not in ('init', 'config', 'commandline', 'run'):
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raise ValueError, "invalid value for 'stop_after': %r" % (stop_after,)
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global _setup_stop_after, _setup_distribution
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_setup_stop_after = stop_after
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save_argv = sys.argv
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g = {}
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l = {}
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try:
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try:
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sys.argv[0] = script_name
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if script_args is not None:
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sys.argv[1:] = script_args
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execfile(script_name, g, l)
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finally:
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sys.argv = save_argv
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_setup_stop_after = None
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except SystemExit:
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# Hmm, should we do something if exiting with a non-zero code
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# (ie. error)?
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pass
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except:
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raise
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if _setup_distribution is None:
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raise RuntimeError, \
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("'distutils.core.setup()' was never called -- "
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"perhaps '%s' is not a Distutils setup script?") % \
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script_name
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# I wonder if the setup script's namespace -- g and l -- would be of
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# any interest to callers?
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#print "_setup_distribution:", _setup_distribution
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return _setup_distribution
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# run_setup ()
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