Merge from fix.
#============================================================================
#Name : site.py
#Part of : Helium
#Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
#All rights reserved.
#This component and the accompanying materials are made available
#under the terms of the License "Eclipse Public License v1.0"
#which accompanies this distribution, and is available
#at the URL "http://www.eclipse.org/legal/epl-v10.html".
#
#Initial Contributors:
#Nokia Corporation - initial contribution.
#
#Contributors:
#
#Description:
#===============================================================================
# Duplicating setuptools' site.py...
def __boot():
PYTHONPATH = []
if sys.platform=='win32':
PYTHONPATH.append(os.path.join(sys.prefix, 'lib'))
if not (os.environ.get('PYTHONPATH') is None or (sys.platform=='win32' and not os.environ.get('PYTHONPATH'))):
PYTHONPATH.extend(os.environ.get('PYTHONPATH').split(os.pathsep))
pic = getattr(sys,'path_importer_cache',{})
stdpath = sys.path[len(PYTHONPATH):]
mydir = os.path.dirname(__file__)
known_paths = dict([(makepath(item)[1],1) for item in sys.path]) # 2.2 comp
oldpos = getattr(sys,'__egginsert',0) # save old insertion position
sys.__egginsert = 0 # and reset the current one
for item in PYTHONPATH:
addsitedir(item)
item_site_packages = os.path.join(item, 'site-packages')
if os.path.exists(item_site_packages):
addsitedir(item_site_packages)
sys.__egginsert += oldpos # restore effective old position
d,nd = makepath(stdpath[0])
insert_at = None
new_path = []
for item in sys.path:
p,np = makepath(item)
if np==nd and insert_at is None:
# We've hit the first 'system' path entry, so added entries go here
insert_at = len(new_path)
if np in known_paths or insert_at is None:
new_path.append(item)
else:
# new path after the insert point, back-insert it
new_path.insert(insert_at, item)
insert_at += 1
sys.path[:] = new_path
import sys
import os
import __builtin__
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():
try:
m.__file__ = os.path.abspath(m.__file__)
except AttributeError:
continue
try:
set
except NameError:
class set:
def __init__(self, args=()):
self.d = {}
for v in args:
self.d[v] = None
def __contains__(self, key):
return key in self.d
def add(self, key):
self.d[key] = None
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, exclude_packages=()):
"""Add a new path to known_paths by combining sitedir and 'name' or execute
sitedir if it starts with 'import'"""
import fnmatch
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
try:
for line in f:
if line.startswith("#"):
continue
found_exclude = False
for exclude in exclude_packages:
if exclude(line):
found_exclude = True
break
if found_exclude:
continue
if line.startswith("import"):
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)
finally:
f.close()
if reset:
known_paths = None
return known_paths
def addsitedir(sitedir, known_paths=None, exclude_packages=()):
"""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
names.sort()
for name in names:
if name.endswith(os.extsep + "pth"):
addpackage(sitedir, name, known_paths,
exclude_packages=exclude_packages)
if reset:
known_paths = None
return known_paths
def addsitepackages(known_paths):
"""Add site-packages (and possibly site-python) to sys.path"""
prefixes = [os.path.join(sys.prefix, "local"), sys.prefix]
if sys.exec_prefix != sys.prefix:
prefixes.append(os.path.join(sys.exec_prefix, "local"))
for prefix in prefixes:
if prefix:
if sys.platform in ('os2emx', 'riscos'):
sitedirs = [os.path.join(prefix, "Lib", "site-packages")]
elif os.sep == '/':
sitedirs = [os.path.join(prefix,
"lib",
"python" + sys.version[:3],
"site-packages"),
os.path.join(prefix, "lib", "site-python")]
try:
# sys.getobjects only available in --with-pydebug build
# pylint: disable-msg=E1101
sys.getobjects
sitedirs.insert(0, os.path.join(sitedirs[0], 'debug'))
except AttributeError:
pass
else:
sitedirs = [prefix, os.path.join(prefix, "lib", "site-packages")]
if sys.platform == 'darwin':
sitedirs.append( os.path.join('/opt/local', 'lib', 'python' + sys.version[:3], 'site-packages') )
# 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:
home = os.environ.get('HOME')
if home:
sitedirs.append(
os.path.join(home,
'Library',
'Python',
sys.version[:3],
'site-packages'))
for sitedir in sitedirs:
if os.path.isdir(sitedir):
addsitedir(sitedir, known_paths,
exclude_packages=[lambda line: 'setuptools' in line])
return None
def setquit():
"""Define new built-ins 'quit' and 'exit'.
These are simply strings that display a hint on how to exit.
"""
if os.sep == ':':
exit = 'Use Cmd-Q to quit.'
elif os.sep == '\\':
exit = 'Use Ctrl-Z plus Return to exit.'
else:
exit = 'Use Ctrl-D (i.e. EOF) to exit.'
__builtin__.quit = __builtin__.exit = 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
def fixup_setuptools():
"""Make sure our setuptools monkeypatch is in place"""
for i in range(len(sys.path)):
if sys.path[i].find('setuptools') != -1:
path = sys.path[i]
del sys.path[i]
sys.path.append(path)
def main():
abs__file__()
paths_in_sys = removeduppaths()
if include_site_packages:
paths_in_sys = addsitepackages(paths_in_sys)
setquit()
setcopyright()
sethelper()
aliasmbcs()
setencoding()
execsitecustomize()
# 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
__boot()
fixup_setuptools()
include_site_packages = False
main()