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Bug 1100925 - Added site.py from virtualenv upstream. r=gps
This is going to be necessary for MSYS2 which needs a custom site.py since the MinGW64 version of Python does not import the system packages. MozReview-Commit-ID: EfHRmRSmvlV --HG-- extra : rebase_source : 6ffbcda31318d3581ded3bf860bbd0db2eec8780
This commit is contained in:
Nathan Hakkakzadeh
parent
a0ff39704a
commit
f28bd15876
759
python/virtualenv/site.py
Normal file
759
python/virtualenv/site.py
Normal file
@ -0,0 +1,759 @@
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"""Append module search paths for third-party packages to sys.path.
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****************************************************************
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* This module is automatically imported during initialization. *
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****************************************************************
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In earlier versions of Python (up to 1.5a3), scripts or modules that
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needed to use site-specific modules would place ``import site''
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somewhere near the top of their code. Because of the automatic
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import, this is no longer necessary (but code that does it still
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works).
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This will append site-specific paths to the module search path. On
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Unix, it starts with sys.prefix and sys.exec_prefix (if different) and
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appends lib/python<version>/site-packages as well as lib/site-python.
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It also supports the Debian convention of
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lib/python<version>/dist-packages. On other platforms (mainly Mac and
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Windows), it uses just sys.prefix (and sys.exec_prefix, if different,
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but this is unlikely). The resulting directories, if they exist, are
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appended to sys.path, and also inspected for path configuration files.
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FOR DEBIAN, this sys.path is augmented with directories in /usr/local.
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Local addons go into /usr/local/lib/python<version>/site-packages
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(resp. /usr/local/lib/site-python), Debian addons install into
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/usr/{lib,share}/python<version>/dist-packages.
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A path configuration file is a file whose name has the form
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<package>.pth; its contents are additional directories (one per line)
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to be added to sys.path. Non-existing directories (or
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non-directories) are never added to sys.path; no directory is added to
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sys.path more than once. Blank lines and lines beginning with
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'#' are skipped. Lines starting with 'import' are executed.
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For example, suppose sys.prefix and sys.exec_prefix are set to
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/usr/local and there is a directory /usr/local/lib/python2.X/site-packages
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with three subdirectories, foo, bar and spam, and two path
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configuration files, foo.pth and bar.pth. Assume foo.pth contains the
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following:
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# foo package configuration
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foo
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bar
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bletch
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and bar.pth contains:
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# bar package configuration
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bar
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Then the following directories are added to sys.path, in this order:
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/usr/local/lib/python2.X/site-packages/bar
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/usr/local/lib/python2.X/site-packages/foo
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Note that bletch is omitted because it doesn't exist; bar precedes foo
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because bar.pth comes alphabetically before foo.pth; and spam is
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omitted because it is not mentioned in either path configuration file.
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After these path manipulations, an attempt is made to import a module
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named sitecustomize, which can perform arbitrary additional
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site-specific customizations. If this import fails with an
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ImportError exception, it is silently ignored.
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"""
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import sys
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import os
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try:
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import __builtin__ as builtins
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except ImportError:
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import builtins
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try:
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set
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except NameError:
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from sets import Set as set
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# Prefixes for site-packages; add additional prefixes like /usr/local here
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PREFIXES = [sys.prefix, sys.exec_prefix]
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# Enable per user site-packages directory
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# set it to False to disable the feature or True to force the feature
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ENABLE_USER_SITE = None
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# for distutils.commands.install
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USER_SITE = None
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USER_BASE = None
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_is_64bit = (getattr(sys, 'maxsize', None) or getattr(sys, 'maxint')) > 2**32
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_is_pypy = hasattr(sys, 'pypy_version_info')
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_is_jython = sys.platform[:4] == 'java'
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if _is_jython:
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ModuleType = type(os)
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def makepath(*paths):
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dir = os.path.join(*paths)
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if _is_jython and (dir == '__classpath__' or
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dir.startswith('__pyclasspath__')):
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return dir, dir
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dir = os.path.abspath(dir)
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return dir, os.path.normcase(dir)
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def abs__file__():
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"""Set all module' __file__ attribute to an absolute path"""
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for m in sys.modules.values():
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if ((_is_jython and not isinstance(m, ModuleType)) or
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hasattr(m, '__loader__')):
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# only modules need the abspath in Jython. and don't mess
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# with a PEP 302-supplied __file__
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continue
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f = getattr(m, '__file__', None)
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if f is None:
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continue
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m.__file__ = os.path.abspath(f)
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def removeduppaths():
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""" Remove duplicate entries from sys.path along with making them
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absolute"""
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# This ensures that the initial path provided by the interpreter contains
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# only absolute pathnames, even if we're running from the build directory.
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L = []
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known_paths = set()
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for dir in sys.path:
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# Filter out duplicate paths (on case-insensitive file systems also
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# if they only differ in case); turn relative paths into absolute
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# paths.
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dir, dircase = makepath(dir)
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if not dircase in known_paths:
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L.append(dir)
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known_paths.add(dircase)
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sys.path[:] = L
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return known_paths
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# XXX This should not be part of site.py, since it is needed even when
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# using the -S option for Python. See http://www.python.org/sf/586680
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def addbuilddir():
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"""Append ./build/lib.<platform> in case we're running in the build dir
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(especially for Guido :-)"""
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from distutils.util import get_platform
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s = "build/lib.%s-%.3s" % (get_platform(), sys.version)
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if hasattr(sys, 'gettotalrefcount'):
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s += '-pydebug'
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s = os.path.join(os.path.dirname(sys.path[-1]), s)
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sys.path.append(s)
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def _init_pathinfo():
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"""Return a set containing all existing directory entries from sys.path"""
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d = set()
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for dir in sys.path:
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try:
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if os.path.isdir(dir):
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dir, dircase = makepath(dir)
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d.add(dircase)
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except TypeError:
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continue
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return d
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def addpackage(sitedir, name, known_paths):
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"""Add a new path to known_paths by combining sitedir and 'name' or execute
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sitedir if it starts with 'import'"""
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if known_paths is None:
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_init_pathinfo()
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reset = 1
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else:
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reset = 0
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fullname = os.path.join(sitedir, name)
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try:
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f = open(fullname, "rU")
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except IOError:
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return
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try:
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for line in f:
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if line.startswith("#"):
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continue
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if line.startswith("import"):
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exec(line)
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continue
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line = line.rstrip()
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dir, dircase = makepath(sitedir, line)
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if not dircase in known_paths and os.path.exists(dir):
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sys.path.append(dir)
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known_paths.add(dircase)
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finally:
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f.close()
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if reset:
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known_paths = None
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return known_paths
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def addsitedir(sitedir, known_paths=None):
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"""Add 'sitedir' argument to sys.path if missing and handle .pth files in
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'sitedir'"""
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if known_paths is None:
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known_paths = _init_pathinfo()
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reset = 1
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else:
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reset = 0
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sitedir, sitedircase = makepath(sitedir)
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if not sitedircase in known_paths:
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sys.path.append(sitedir) # Add path component
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try:
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names = os.listdir(sitedir)
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except os.error:
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return
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names.sort()
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for name in names:
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if name.endswith(os.extsep + "pth"):
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addpackage(sitedir, name, known_paths)
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if reset:
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known_paths = None
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return known_paths
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def addsitepackages(known_paths, sys_prefix=sys.prefix, exec_prefix=sys.exec_prefix):
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"""Add site-packages (and possibly site-python) to sys.path"""
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prefixes = [os.path.join(sys_prefix, "local"), sys_prefix]
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if exec_prefix != sys_prefix:
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prefixes.append(os.path.join(exec_prefix, "local"))
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for prefix in prefixes:
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if prefix:
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if sys.platform in ('os2emx', 'riscos') or _is_jython:
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sitedirs = [os.path.join(prefix, "Lib", "site-packages")]
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elif _is_pypy:
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sitedirs = [os.path.join(prefix, 'site-packages')]
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elif sys.platform == 'darwin' and prefix == sys_prefix:
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if prefix.startswith("/System/Library/Frameworks/"): # Apple's Python
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sitedirs = [os.path.join("/Library/Python", sys.version[:3], "site-packages"),
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os.path.join(prefix, "Extras", "lib", "python")]
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else: # any other Python distros on OSX work this way
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sitedirs = [os.path.join(prefix, "lib",
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"python" + sys.version[:3], "site-packages")]
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elif os.sep == '/':
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sitedirs = [os.path.join(prefix,
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"lib",
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"python" + sys.version[:3],
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"site-packages"),
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os.path.join(prefix, "lib", "site-python"),
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os.path.join(prefix, "python" + sys.version[:3], "lib-dynload")]
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lib64_dir = os.path.join(prefix, "lib64", "python" + sys.version[:3], "site-packages")
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if (os.path.exists(lib64_dir) and
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os.path.realpath(lib64_dir) not in [os.path.realpath(p) for p in sitedirs]):
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if _is_64bit:
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sitedirs.insert(0, lib64_dir)
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else:
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sitedirs.append(lib64_dir)
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try:
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# sys.getobjects only available in --with-pydebug build
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sys.getobjects
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sitedirs.insert(0, os.path.join(sitedirs[0], 'debug'))
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except AttributeError:
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pass
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# Debian-specific dist-packages directories:
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sitedirs.append(os.path.join(prefix, "local/lib",
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"python" + sys.version[:3],
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"dist-packages"))
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if sys.version[0] == '2':
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sitedirs.append(os.path.join(prefix, "lib",
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"python" + sys.version[:3],
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"dist-packages"))
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else:
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sitedirs.append(os.path.join(prefix, "lib",
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"python" + sys.version[0],
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"dist-packages"))
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sitedirs.append(os.path.join(prefix, "lib", "dist-python"))
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else:
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sitedirs = [prefix, os.path.join(prefix, "lib", "site-packages")]
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if sys.platform == 'darwin':
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# for framework builds *only* we add the standard Apple
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# locations. Currently only per-user, but /Library and
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# /Network/Library could be added too
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if 'Python.framework' in prefix:
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home = os.environ.get('HOME')
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if home:
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sitedirs.append(
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os.path.join(home,
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'Library',
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'Python',
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sys.version[:3],
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'site-packages'))
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for sitedir in sitedirs:
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if os.path.isdir(sitedir):
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addsitedir(sitedir, known_paths)
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return None
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def check_enableusersite():
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"""Check if user site directory is safe for inclusion
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The function tests for the command line flag (including environment var),
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process uid/gid equal to effective uid/gid.
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None: Disabled for security reasons
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False: Disabled by user (command line option)
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True: Safe and enabled
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"""
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if hasattr(sys, 'flags') and getattr(sys.flags, 'no_user_site', False):
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return False
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if hasattr(os, "getuid") and hasattr(os, "geteuid"):
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# check process uid == effective uid
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if os.geteuid() != os.getuid():
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return None
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if hasattr(os, "getgid") and hasattr(os, "getegid"):
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# check process gid == effective gid
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if os.getegid() != os.getgid():
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return None
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return True
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def addusersitepackages(known_paths):
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"""Add a per user site-package to sys.path
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Each user has its own python directory with site-packages in the
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home directory.
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USER_BASE is the root directory for all Python versions
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USER_SITE is the user specific site-packages directory
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USER_SITE/.. can be used for data.
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"""
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global USER_BASE, USER_SITE, ENABLE_USER_SITE
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env_base = os.environ.get("PYTHONUSERBASE", None)
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def joinuser(*args):
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return os.path.expanduser(os.path.join(*args))
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#if sys.platform in ('os2emx', 'riscos'):
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# # Don't know what to put here
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# USER_BASE = ''
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# USER_SITE = ''
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if os.name == "nt":
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base = os.environ.get("APPDATA") or "~"
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if env_base:
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USER_BASE = env_base
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else:
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USER_BASE = joinuser(base, "Python")
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USER_SITE = os.path.join(USER_BASE,
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"Python" + sys.version[0] + sys.version[2],
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"site-packages")
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else:
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if env_base:
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USER_BASE = env_base
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else:
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USER_BASE = joinuser("~", ".local")
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USER_SITE = os.path.join(USER_BASE, "lib",
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"python" + sys.version[:3],
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"site-packages")
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if ENABLE_USER_SITE and os.path.isdir(USER_SITE):
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addsitedir(USER_SITE, known_paths)
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if ENABLE_USER_SITE:
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for dist_libdir in ("lib", "local/lib"):
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user_site = os.path.join(USER_BASE, dist_libdir,
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"python" + sys.version[:3],
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"dist-packages")
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if os.path.isdir(user_site):
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addsitedir(user_site, known_paths)
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return known_paths
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def setBEGINLIBPATH():
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"""The OS/2 EMX port has optional extension modules that do double duty
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as DLLs (and must use the .DLL file extension) for other extensions.
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The library search path needs to be amended so these will be found
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during module import. Use BEGINLIBPATH so that these are at the start
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of the library search path.
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"""
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dllpath = os.path.join(sys.prefix, "Lib", "lib-dynload")
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libpath = os.environ['BEGINLIBPATH'].split(';')
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if libpath[-1]:
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libpath.append(dllpath)
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else:
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libpath[-1] = dllpath
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os.environ['BEGINLIBPATH'] = ';'.join(libpath)
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def setquit():
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"""Define new built-ins 'quit' and 'exit'.
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These are simply strings that display a hint on how to exit.
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"""
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if os.sep == ':':
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eof = 'Cmd-Q'
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elif os.sep == '\\':
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eof = 'Ctrl-Z plus Return'
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else:
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eof = 'Ctrl-D (i.e. EOF)'
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class Quitter(object):
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def __init__(self, name):
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self.name = name
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def __repr__(self):
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return 'Use %s() or %s to exit' % (self.name, eof)
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def __call__(self, code=None):
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# Shells like IDLE catch the SystemExit, but listen when their
|
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# stdin wrapper is closed.
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try:
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sys.stdin.close()
|
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except:
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pass
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raise SystemExit(code)
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builtins.quit = Quitter('quit')
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builtins.exit = Quitter('exit')
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class _Printer(object):
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"""interactive prompt objects for printing the license text, a list of
|
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contributors and the copyright notice."""
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MAXLINES = 23
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|
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def __init__(self, name, data, files=(), dirs=()):
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self.__name = name
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self.__data = data
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self.__files = files
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self.__dirs = dirs
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self.__lines = None
|
||||
|
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def __setup(self):
|
||||
if self.__lines:
|
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return
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data = None
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for dir in self.__dirs:
|
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for filename in self.__files:
|
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filename = os.path.join(dir, filename)
|
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try:
|
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fp = open(filename, "rU")
|
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data = fp.read()
|
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fp.close()
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break
|
||||
except IOError:
|
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pass
|
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if data:
|
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break
|
||||
if not data:
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data = self.__data
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self.__lines = data.split('\n')
|
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self.__linecnt = len(self.__lines)
|
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|
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def __repr__(self):
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self.__setup()
|
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if len(self.__lines) <= self.MAXLINES:
|
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return "\n".join(self.__lines)
|
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else:
|
||||
return "Type %s() to see the full %s text" % ((self.__name,)*2)
|
||||
|
||||
def __call__(self):
|
||||
self.__setup()
|
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prompt = 'Hit Return for more, or q (and Return) to quit: '
|
||||
lineno = 0
|
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while 1:
|
||||
try:
|
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for i in range(lineno, lineno + self.MAXLINES):
|
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print(self.__lines[i])
|
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except IndexError:
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break
|
||||
else:
|
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lineno += self.MAXLINES
|
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key = None
|
||||
while key is None:
|
||||
try:
|
||||
key = raw_input(prompt)
|
||||
except NameError:
|
||||
key = input(prompt)
|
||||
if key not in ('', 'q'):
|
||||
key = None
|
||||
if key == 'q':
|
||||
break
|
||||
|
||||
def setcopyright():
|
||||
"""Set 'copyright' and 'credits' in __builtin__"""
|
||||
builtins.copyright = _Printer("copyright", sys.copyright)
|
||||
if _is_jython:
|
||||
builtins.credits = _Printer(
|
||||
"credits",
|
||||
"Jython is maintained by the Jython developers (www.jython.org).")
|
||||
elif _is_pypy:
|
||||
builtins.credits = _Printer(
|
||||
"credits",
|
||||
"PyPy is maintained by the PyPy developers: http://pypy.org/")
|
||||
else:
|
||||
builtins.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__)
|
||||
builtins.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():
|
||||
builtins.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 virtual_install_main_packages():
|
||||
f = open(os.path.join(os.path.dirname(__file__), 'orig-prefix.txt'))
|
||||
sys.real_prefix = f.read().strip()
|
||||
f.close()
|
||||
pos = 2
|
||||
hardcoded_relative_dirs = []
|
||||
if sys.path[0] == '':
|
||||
pos += 1
|
||||
if _is_jython:
|
||||
paths = [os.path.join(sys.real_prefix, 'Lib')]
|
||||
elif _is_pypy:
|
||||
if sys.version_info > (3, 2):
|
||||
cpyver = '%d' % sys.version_info[0]
|
||||
elif sys.pypy_version_info >= (1, 5):
|
||||
cpyver = '%d.%d' % sys.version_info[:2]
|
||||
else:
|
||||
cpyver = '%d.%d.%d' % sys.version_info[:3]
|
||||
paths = [os.path.join(sys.real_prefix, 'lib_pypy'),
|
||||
os.path.join(sys.real_prefix, 'lib-python', cpyver)]
|
||||
if sys.pypy_version_info < (1, 9):
|
||||
paths.insert(1, os.path.join(sys.real_prefix,
|
||||
'lib-python', 'modified-%s' % cpyver))
|
||||
hardcoded_relative_dirs = paths[:] # for the special 'darwin' case below
|
||||
#
|
||||
# This is hardcoded in the Python executable, but relative to sys.prefix:
|
||||
for path in paths[:]:
|
||||
plat_path = os.path.join(path, 'plat-%s' % sys.platform)
|
||||
if os.path.exists(plat_path):
|
||||
paths.append(plat_path)
|
||||
elif sys.platform == 'win32':
|
||||
paths = [os.path.join(sys.real_prefix, 'Lib'), os.path.join(sys.real_prefix, 'DLLs')]
|
||||
else:
|
||||
paths = [os.path.join(sys.real_prefix, 'lib', 'python'+sys.version[:3])]
|
||||
hardcoded_relative_dirs = paths[:] # for the special 'darwin' case below
|
||||
lib64_path = os.path.join(sys.real_prefix, 'lib64', 'python'+sys.version[:3])
|
||||
if os.path.exists(lib64_path):
|
||||
if _is_64bit:
|
||||
paths.insert(0, lib64_path)
|
||||
else:
|
||||
paths.append(lib64_path)
|
||||
# This is hardcoded in the Python executable, but relative to
|
||||
# sys.prefix. Debian change: we need to add the multiarch triplet
|
||||
# here, which is where the real stuff lives. As per PEP 421, in
|
||||
# Python 3.3+, this lives in sys.implementation, while in Python 2.7
|
||||
# it lives in sys.
|
||||
try:
|
||||
arch = getattr(sys, 'implementation', sys)._multiarch
|
||||
except AttributeError:
|
||||
# This is a non-multiarch aware Python. Fallback to the old way.
|
||||
arch = sys.platform
|
||||
plat_path = os.path.join(sys.real_prefix, 'lib',
|
||||
'python'+sys.version[:3],
|
||||
'plat-%s' % arch)
|
||||
if os.path.exists(plat_path):
|
||||
paths.append(plat_path)
|
||||
# This is hardcoded in the Python executable, but
|
||||
# relative to sys.prefix, so we have to fix up:
|
||||
for path in list(paths):
|
||||
tk_dir = os.path.join(path, 'lib-tk')
|
||||
if os.path.exists(tk_dir):
|
||||
paths.append(tk_dir)
|
||||
|
||||
# These are hardcoded in the Apple's Python executable,
|
||||
# but relative to sys.prefix, so we have to fix them up:
|
||||
if sys.platform == 'darwin':
|
||||
hardcoded_paths = [os.path.join(relative_dir, module)
|
||||
for relative_dir in hardcoded_relative_dirs
|
||||
for module in ('plat-darwin', 'plat-mac', 'plat-mac/lib-scriptpackages')]
|
||||
|
||||
for path in hardcoded_paths:
|
||||
if os.path.exists(path):
|
||||
paths.append(path)
|
||||
|
||||
sys.path.extend(paths)
|
||||
|
||||
def force_global_eggs_after_local_site_packages():
|
||||
"""
|
||||
Force easy_installed eggs in the global environment to get placed
|
||||
in sys.path after all packages inside the virtualenv. This
|
||||
maintains the "least surprise" result that packages in the
|
||||
virtualenv always mask global packages, never the other way
|
||||
around.
|
||||
|
||||
"""
|
||||
egginsert = getattr(sys, '__egginsert', 0)
|
||||
for i, path in enumerate(sys.path):
|
||||
if i > egginsert and path.startswith(sys.prefix):
|
||||
egginsert = i
|
||||
sys.__egginsert = egginsert + 1
|
||||
|
||||
def virtual_addsitepackages(known_paths):
|
||||
force_global_eggs_after_local_site_packages()
|
||||
return addsitepackages(known_paths, sys_prefix=sys.real_prefix)
|
||||
|
||||
def fixclasspath():
|
||||
"""Adjust the special classpath sys.path entries for Jython. These
|
||||
entries should follow the base virtualenv lib directories.
|
||||
"""
|
||||
paths = []
|
||||
classpaths = []
|
||||
for path in sys.path:
|
||||
if path == '__classpath__' or path.startswith('__pyclasspath__'):
|
||||
classpaths.append(path)
|
||||
else:
|
||||
paths.append(path)
|
||||
sys.path = paths
|
||||
sys.path.extend(classpaths)
|
||||
|
||||
def execusercustomize():
|
||||
"""Run custom user specific code, if available."""
|
||||
try:
|
||||
import usercustomize
|
||||
except ImportError:
|
||||
pass
|
||||
|
||||
|
||||
def main():
|
||||
global ENABLE_USER_SITE
|
||||
virtual_install_main_packages()
|
||||
abs__file__()
|
||||
paths_in_sys = removeduppaths()
|
||||
if (os.name == "posix" and sys.path and
|
||||
os.path.basename(sys.path[-1]) == "Modules"):
|
||||
addbuilddir()
|
||||
if _is_jython:
|
||||
fixclasspath()
|
||||
GLOBAL_SITE_PACKAGES = not os.path.exists(os.path.join(os.path.dirname(__file__), 'no-global-site-packages.txt'))
|
||||
if not GLOBAL_SITE_PACKAGES:
|
||||
ENABLE_USER_SITE = False
|
||||
if ENABLE_USER_SITE is None:
|
||||
ENABLE_USER_SITE = check_enableusersite()
|
||||
paths_in_sys = addsitepackages(paths_in_sys)
|
||||
paths_in_sys = addusersitepackages(paths_in_sys)
|
||||
if GLOBAL_SITE_PACKAGES:
|
||||
paths_in_sys = virtual_addsitepackages(paths_in_sys)
|
||||
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("]")
|
||||
def exists(path):
|
||||
if os.path.isdir(path):
|
||||
return "exists"
|
||||
else:
|
||||
return "doesn't exist"
|
||||
print("USER_BASE: %r (%s)" % (USER_BASE, exists(USER_BASE)))
|
||||
print("USER_SITE: %r (%s)" % (USER_SITE, exists(USER_BASE)))
|
||||
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()
|
||||
Loading…
Reference in New Issue
Block a user