--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/parts/buildout/site.py Sat Jan 08 11:20:57 2011 +0530
@@ -0,0 +1,617 @@
+"""Append module search paths for third-party packages to sys.path.
+
+****************************************************************
+* This module is automatically imported during initialization. *
+****************************************************************
+
+In earlier versions of Python (up to 1.5a3), scripts or modules that
+needed to use site-specific modules would place ``import site''
+somewhere near the top of their code. Because of the automatic
+import, this is no longer necessary (but code that does it still
+works).
+
+This will append site-specific paths to the module search path. On
+Unix (including Mac OSX), it starts with sys.prefix and
+sys.exec_prefix (if different) and appends
+lib/python<version>/site-packages as well as lib/site-python.
+On other platforms (such as Windows), it tries each of the
+prefixes directly, as well as with lib/site-packages appended. The
+resulting directories, if they exist, are appended to sys.path, and
+also inspected for path configuration files.
+
+For Debian and derivatives, this sys.path is augmented with directories
+for packages distributed within the distribution. Local addons go
+into /usr/local/lib/python<version>/dist-packages, Debian addons
+install into /usr/{lib,share}/python<version>/dist-packages.
+/usr/lib/python<version>/site-packages is not used.
+
+A path configuration file is a file whose name has the form
+<package>.pth; its contents are additional directories (one per line)
+to be added to sys.path. Non-existing directories (or
+non-directories) are never added to sys.path; no directory is added to
+sys.path more than once. Blank lines and lines beginning with
+'#' are skipped. Lines starting with 'import' are executed.
+
+For example, suppose sys.prefix and sys.exec_prefix are set to
+/usr/local and there is a directory /usr/local/lib/python2.5/site-packages
+with three subdirectories, foo, bar and spam, and two path
+configuration files, foo.pth and bar.pth. Assume foo.pth contains the
+following:
+
+ # foo package configuration
+ foo
+ bar
+ bletch
+
+and bar.pth contains:
+
+ # bar package configuration
+ bar
+
+Then the following directories are added to sys.path, in this order:
+
+ /usr/local/lib/python2.5/site-packages/bar
+ /usr/local/lib/python2.5/site-packages/foo
+
+Note that bletch is omitted because it doesn't exist; bar precedes foo
+because bar.pth comes alphabetically before foo.pth; and spam is
+omitted because it is not mentioned in either path configuration file.
+
+After these path manipulations, an attempt is made to import a module
+named sitecustomize, which can perform arbitrary additional
+site-specific customizations. If this import fails with an
+ImportError exception, it is silently ignored.
+
+"""
+
+import sys
+import os
+import __builtin__
+
+# Prefixes for site-packages; add additional prefixes like /usr/local here
+PREFIXES = [sys.prefix, sys.exec_prefix]
+# Enable per user site-packages directory
+# set it to False to disable the feature or True to force the feature
+ENABLE_USER_SITE = False # buildout does not support user sites.
+# for distutils.commands.install
+USER_SITE = None
+USER_BASE = None
+
+
+def makepath(*paths):
+ dir = os.path.abspath(os.path.join(*paths))
+ return dir, os.path.normcase(dir)
+
+
+def abs__file__():
+ """Set all module' __file__ attribute to an absolute path"""
+ for m in sys.modules.values():
+ if hasattr(m, '__loader__'):
+ continue # don't mess with a PEP 302-supplied __file__
+ try:
+ m.__file__ = os.path.abspath(m.__file__)
+ except AttributeError:
+ continue
+
+
+def removeduppaths():
+ """ Remove duplicate entries from sys.path along with making them
+ absolute"""
+ # This ensures that the initial path provided by the interpreter contains
+ # only absolute pathnames, even if we're running from the build directory.
+ L = []
+ known_paths = set()
+ for dir in sys.path:
+ # Filter out duplicate paths (on case-insensitive file systems also
+ # if they only differ in case); turn relative paths into absolute
+ # paths.
+ dir, dircase = makepath(dir)
+ if not dircase in known_paths:
+ L.append(dir)
+ known_paths.add(dircase)
+ sys.path[:] = L
+ return known_paths
+
+def _init_pathinfo():
+ """Return a set containing all existing directory entries from sys.path"""
+ d = set()
+ for dir in sys.path:
+ try:
+ if os.path.isdir(dir):
+ dir, dircase = makepath(dir)
+ d.add(dircase)
+ except TypeError:
+ continue
+ return d
+
+
+def addpackage(sitedir, name, known_paths):
+ """Process a .pth file within the site-packages directory:
+ For each line in the file, either combine it with sitedir to a path
+ and add that to known_paths, or execute it if it starts with 'import '.
+ """
+ if known_paths is None:
+ _init_pathinfo()
+ reset = 1
+ else:
+ reset = 0
+ fullname = os.path.join(sitedir, name)
+ try:
+ f = open(fullname, "rU")
+ except IOError:
+ return
+ with f:
+ for line in f:
+ if line.startswith("#"):
+ continue
+ if line.startswith(("import ", "import\t")):
+ exec line
+ continue
+ line = line.rstrip()
+ dir, dircase = makepath(sitedir, line)
+ if not dircase in known_paths and os.path.exists(dir):
+ sys.path.append(dir)
+ known_paths.add(dircase)
+ if reset:
+ known_paths = None
+ return known_paths
+
+
+def addsitedir(sitedir, known_paths=None):
+ """Add 'sitedir' argument to sys.path if missing and handle .pth files in
+ 'sitedir'"""
+ if known_paths is None:
+ known_paths = _init_pathinfo()
+ reset = 1
+ else:
+ reset = 0
+ sitedir, sitedircase = makepath(sitedir)
+ if not sitedircase in known_paths:
+ sys.path.append(sitedir) # Add path component
+ try:
+ names = os.listdir(sitedir)
+ except os.error:
+ return
+ dotpth = os.extsep + "pth"
+ names = [name for name in names if name.endswith(dotpth)]
+ for name in sorted(names):
+ addpackage(sitedir, name, known_paths)
+ if reset:
+ known_paths = None
+ return known_paths
+
+
+def check_enableusersite():
+ """Check if user site directory is safe for inclusion
+
+ The function tests for the command line flag (including environment var),
+ process uid/gid equal to effective uid/gid.
+
+ None: Disabled for security reasons
+ False: Disabled by user (command line option)
+ True: Safe and enabled
+ """
+ if sys.flags.no_user_site:
+ return False
+
+ if hasattr(os, "getuid") and hasattr(os, "geteuid"):
+ # check process uid == effective uid
+ if os.geteuid() != os.getuid():
+ return None
+ if hasattr(os, "getgid") and hasattr(os, "getegid"):
+ # check process gid == effective gid
+ if os.getegid() != os.getgid():
+ return None
+
+ return True
+
+
+def addusersitepackages(known_paths):
+ """Add a per user site-package to sys.path
+
+ Each user has its own python directory with site-packages in the
+ home directory.
+
+ USER_BASE is the root directory for all Python versions
+
+ USER_SITE is the user specific site-packages directory
+
+ USER_SITE/.. can be used for data.
+ """
+ global USER_BASE, USER_SITE, ENABLE_USER_SITE
+ env_base = os.environ.get("PYTHONUSERBASE", None)
+
+ def joinuser(*args):
+ return os.path.expanduser(os.path.join(*args))
+
+ #if sys.platform in ('os2emx', 'riscos'):
+ # # Don't know what to put here
+ # USER_BASE = ''
+ # USER_SITE = ''
+ if os.name == "nt":
+ base = os.environ.get("APPDATA") or "~"
+ USER_BASE = env_base if env_base else joinuser(base, "Python")
+ USER_SITE = os.path.join(USER_BASE,
+ "Python" + sys.version[0] + sys.version[2],
+ "site-packages")
+ else:
+ USER_BASE = env_base if env_base else joinuser("~", ".local")
+ USER_SITE = os.path.join(USER_BASE, "lib",
+ "python" + sys.version[:3],
+ "site-packages")
+
+ if ENABLE_USER_SITE and os.path.isdir(USER_SITE):
+ addsitedir(USER_SITE, known_paths)
+ if ENABLE_USER_SITE:
+ for dist_libdir in ("local/lib", "lib"):
+ user_site = os.path.join(USER_BASE, dist_libdir,
+ "python" + sys.version[:3],
+ "dist-packages")
+ if os.path.isdir(user_site):
+ addsitedir(user_site, known_paths)
+ return known_paths
+
+
+def addsitepackages(known_paths):
+ """Add site packages, as determined by zc.buildout.
+
+ See original_addsitepackages, below, for the original version."""
+ setuptools_path = '/home/nishanth/Desktop/pytask/eggs/setuptools-0.6c12dev_r85381-py2.6.egg'
+ sys.path.append(setuptools_path)
+ known_paths.add(os.path.normcase(setuptools_path))
+ import pkg_resources
+ buildout_paths = [
+ '/home/nishanth/Desktop/pytask/eggs/setuptools-0.6c12dev_r85381-py2.6.egg',
+ '/home/nishanth/Desktop/pytask/eggs/zc.buildout-1.5.2-py2.6.egg'
+ ]
+ for path in buildout_paths:
+ sitedir, sitedircase = makepath(path)
+ if not sitedircase in known_paths and os.path.exists(sitedir):
+ sys.path.append(sitedir)
+ known_paths.add(sitedircase)
+ pkg_resources.working_set.add_entry(sitedir)
+ sys.__egginsert = len(buildout_paths) # Support distribute.
+ original_paths = [
+ '/usr/local/lib/python2.6/dist-packages/django_tagging-0.3.1-py2.6.egg',
+ '/usr/local/lib/python2.6/dist-packages/django_registration-0.7-py2.6.egg',
+ '/usr/local/lib/python2.6/dist-packages/Django-1.2.4-py2.6.egg',
+ '/usr/local/lib/python2.6/dist-packages/South-0.7.3-py2.6.egg',
+ '/usr/local/lib/python2.6/dist-packages/pysqlite-2.6.0-py2.6-linux-x86_64.egg',
+ '/usr/local/lib/python2.6/dist-packages/django_auth_ldap-1.0.7-py2.6.egg',
+ '/usr/local/lib/python2.6/dist-packages',
+ '/usr/lib/python2.6/dist-packages',
+ '/usr/lib/python2.6/dist-packages/PIL',
+ '/usr/lib/python2.6/dist-packages/gst-0.10',
+ '/usr/lib/pymodules/python2.6',
+ '/usr/lib/python2.6/dist-packages/gtk-2.0',
+ '/usr/lib/pymodules/python2.6/gtk-2.0',
+ '/usr/lib/python2.6/dist-packages/wx-2.8-gtk2-unicode'
+ ]
+ for path in original_paths:
+ if path == setuptools_path or path not in known_paths:
+ addsitedir(path, known_paths)
+ return known_paths
+
+def original_addsitepackages(known_paths):
+ """Add site-packages (and possibly site-python) to sys.path"""
+ sitedirs = []
+ seen = []
+
+ for prefix in PREFIXES:
+ if not prefix or prefix in seen:
+ continue
+ seen.append(prefix)
+
+ if sys.platform in ('os2emx', 'riscos'):
+ sitedirs.append(os.path.join(prefix, "Lib", "site-packages"))
+ elif os.sep == '/':
+ sitedirs.append(os.path.join(prefix, "local/lib",
+ "python" + sys.version[:3],
+ "dist-packages"))
+ sitedirs.append(os.path.join(prefix, "lib",
+ "python" + sys.version[:3],
+ "dist-packages"))
+ sitedirs.append(os.path.join(prefix, "lib", "dist-python"))
+ else:
+ sitedirs.append(prefix)
+ sitedirs.append(os.path.join(prefix, "lib", "site-packages"))
+
+ if sys.platform == "darwin":
+ # for framework builds *only* we add the standard Apple
+ # locations. Currently only per-user, but /Library and
+ # /Network/Library could be added too
+ if 'Python.framework' in prefix:
+ sitedirs.append(
+ os.path.expanduser(
+ os.path.join("~", "Library", "Python",
+ sys.version[:3], "site-packages")))
+
+ for sitedir in sitedirs:
+ if os.path.isdir(sitedir):
+ addsitedir(sitedir, known_paths)
+
+ return known_paths
+
+
+def setBEGINLIBPATH():
+ """The OS/2 EMX port has optional extension modules that do double duty
+ as DLLs (and must use the .DLL file extension) for other extensions.
+ The library search path needs to be amended so these will be found
+ during module import. Use BEGINLIBPATH so that these are at the start
+ of the library search path.
+
+ """
+ dllpath = os.path.join(sys.prefix, "Lib", "lib-dynload")
+ libpath = os.environ['BEGINLIBPATH'].split(';')
+ if libpath[-1]:
+ libpath.append(dllpath)
+ else:
+ libpath[-1] = dllpath
+ os.environ['BEGINLIBPATH'] = ';'.join(libpath)
+
+
+def setquit():
+ """Define new built-ins 'quit' and 'exit'.
+ These are simply strings that display a hint on how to exit.
+
+ """
+ if os.sep == ':':
+ eof = 'Cmd-Q'
+ elif os.sep == '\\':
+ eof = 'Ctrl-Z plus Return'
+ else:
+ eof = 'Ctrl-D (i.e. EOF)'
+
+ class Quitter(object):
+ def __init__(self, name):
+ self.name = name
+ def __repr__(self):
+ return 'Use %s() or %s to exit' % (self.name, eof)
+ def __call__(self, code=None):
+ # Shells like IDLE catch the SystemExit, but listen when their
+ # stdin wrapper is closed.
+ try:
+ sys.stdin.close()
+ except:
+ pass
+ raise SystemExit(code)
+ __builtin__.quit = Quitter('quit')
+ __builtin__.exit = Quitter('exit')
+
+
+class _Printer(object):
+ """interactive prompt objects for printing the license text, a list of
+ contributors and the copyright notice."""
+
+ MAXLINES = 23
+
+ def __init__(self, name, data, files=(), dirs=()):
+ self.__name = name
+ self.__data = data
+ self.__files = files
+ self.__dirs = dirs
+ self.__lines = None
+
+ def __setup(self):
+ if self.__lines:
+ return
+ data = None
+ for dir in self.__dirs:
+ for filename in self.__files:
+ filename = os.path.join(dir, filename)
+ try:
+ fp = file(filename, "rU")
+ data = fp.read()
+ fp.close()
+ break
+ except IOError:
+ pass
+ if data:
+ break
+ if not data:
+ data = self.__data
+ self.__lines = data.split('\n')
+ self.__linecnt = len(self.__lines)
+
+ def __repr__(self):
+ self.__setup()
+ if len(self.__lines) <= self.MAXLINES:
+ return "\n".join(self.__lines)
+ else:
+ return "Type %s() to see the full %s text" % ((self.__name,)*2)
+
+ def __call__(self):
+ self.__setup()
+ prompt = 'Hit Return for more, or q (and Return) to quit: '
+ lineno = 0
+ while 1:
+ try:
+ for i in range(lineno, lineno + self.MAXLINES):
+ print self.__lines[i]
+ except IndexError:
+ break
+ else:
+ lineno += self.MAXLINES
+ key = None
+ while key is None:
+ key = raw_input(prompt)
+ if key not in ('', 'q'):
+ key = None
+ if key == 'q':
+ break
+
+def setcopyright():
+ """Set 'copyright' and 'credits' in __builtin__"""
+ __builtin__.copyright = _Printer("copyright", sys.copyright)
+ if sys.platform[:4] == 'java':
+ __builtin__.credits = _Printer(
+ "credits",
+ "Jython is maintained by the Jython developers (www.jython.org).")
+ else:
+ __builtin__.credits = _Printer("credits", """\
+ Thanks to CWI, CNRI, BeOpen.com, Zope Corporation and a cast of thousands
+ for supporting Python development. See www.python.org for more information.""")
+ here = os.path.dirname(os.__file__)
+ __builtin__.license = _Printer(
+ "license", "See http://www.python.org/%.3s/license.html" % sys.version,
+ ["LICENSE.txt", "LICENSE"],
+ [os.path.join(here, os.pardir), here, os.curdir])
+
+
+class _Helper(object):
+ """Define the built-in 'help'.
+ This is a wrapper around pydoc.help (with a twist).
+
+ """
+
+ def __repr__(self):
+ return "Type help() for interactive help, " \
+ "or help(object) for help about object."
+ def __call__(self, *args, **kwds):
+ import pydoc
+ return pydoc.help(*args, **kwds)
+
+def sethelper():
+ __builtin__.help = _Helper()
+
+def aliasmbcs():
+ """On Windows, some default encodings are not provided by Python,
+ while they are always available as "mbcs" in each locale. Make
+ them usable by aliasing to "mbcs" in such a case."""
+ if sys.platform == 'win32':
+ import locale, codecs
+ enc = locale.getdefaultlocale()[1]
+ if enc.startswith('cp'): # "cp***" ?
+ try:
+ codecs.lookup(enc)
+ except LookupError:
+ import encodings
+ encodings._cache[enc] = encodings._unknown
+ encodings.aliases.aliases[enc] = 'mbcs'
+
+def setencoding():
+ """Set the string encoding used by the Unicode implementation. The
+ default is 'ascii', but if you're willing to experiment, you can
+ change this."""
+ encoding = "ascii" # Default value set by _PyUnicode_Init()
+ if 0:
+ # Enable to support locale aware default string encodings.
+ import locale
+ loc = locale.getdefaultlocale()
+ if loc[1]:
+ encoding = loc[1]
+ if 0:
+ # Enable to switch off string to Unicode coercion and implicit
+ # Unicode to string conversion.
+ encoding = "undefined"
+ if encoding != "ascii":
+ # On Non-Unicode builds this will raise an AttributeError...
+ sys.setdefaultencoding(encoding) # Needs Python Unicode build !
+
+
+def execsitecustomize():
+ """Run custom site specific code, if available."""
+ try:
+ import sitecustomize
+ except ImportError:
+ pass
+ except Exception:
+ if sys.flags.verbose:
+ sys.excepthook(*sys.exc_info())
+ else:
+ print >>sys.stderr, \
+ "'import sitecustomize' failed; use -v for traceback"
+
+
+def execusercustomize():
+ """Run custom user specific code, if available."""
+ try:
+ import usercustomize
+ except ImportError:
+ pass
+ except Exception:
+ if sys.flags.verbose:
+ sys.excepthook(*sys.exc_info())
+ else:
+ print>>sys.stderr, \
+ "'import usercustomize' failed; use -v for traceback"
+
+
+def main():
+ global ENABLE_USER_SITE
+
+ abs__file__()
+ known_paths = removeduppaths()
+ if ENABLE_USER_SITE is None:
+ ENABLE_USER_SITE = check_enableusersite()
+ known_paths = addusersitepackages(known_paths)
+ known_paths = addsitepackages(known_paths)
+ if sys.platform == 'os2emx':
+ setBEGINLIBPATH()
+ setquit()
+ setcopyright()
+ sethelper()
+ aliasmbcs()
+ setencoding()
+ execsitecustomize()
+ if ENABLE_USER_SITE:
+ execusercustomize()
+ # Remove sys.setdefaultencoding() so that users cannot change the
+ # encoding after initialization. The test for presence is needed when
+ # this module is run as a script, because this code is executed twice.
+ if hasattr(sys, "setdefaultencoding"):
+ del sys.setdefaultencoding
+
+main()
+
+def _script():
+ help = """\
+ %s [--user-base] [--user-site]
+
+ Without arguments print some useful information
+ With arguments print the value of USER_BASE and/or USER_SITE separated
+ by '%s'.
+
+ Exit codes with --user-base or --user-site:
+ 0 - user site directory is enabled
+ 1 - user site directory is disabled by user
+ 2 - uses site directory is disabled by super user
+ or for security reasons
+ >2 - unknown error
+ """
+ args = sys.argv[1:]
+ if not args:
+ print "sys.path = ["
+ for dir in sys.path:
+ print " %r," % (dir,)
+ print "]"
+ print "USER_BASE: %r (%s)" % (USER_BASE,
+ "exists" if os.path.isdir(USER_BASE) else "doesn't exist")
+ print "USER_SITE: %r (%s)" % (USER_SITE,
+ "exists" if os.path.isdir(USER_SITE) else "doesn't exist")
+ print "ENABLE_USER_SITE: %r" % ENABLE_USER_SITE
+ sys.exit(0)
+
+ buffer = []
+ if '--user-base' in args:
+ buffer.append(USER_BASE)
+ if '--user-site' in args:
+ buffer.append(USER_SITE)
+
+ if buffer:
+ print os.pathsep.join(buffer)
+ if ENABLE_USER_SITE:
+ sys.exit(0)
+ elif ENABLE_USER_SITE is False:
+ sys.exit(1)
+ elif ENABLE_USER_SITE is None:
+ sys.exit(2)
+ else:
+ sys.exit(3)
+ else:
+ import textwrap
+ print textwrap.dedent(help % (sys.argv[0], os.pathsep))
+ sys.exit(10)
+
+if __name__ == '__main__':
+ _script()