| """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, it starts with sys.prefix and sys.exec_prefix (if different) and |
| appends lib/python<version>/site-packages as well as lib/site-python. |
| It also supports the Debian convention of |
| lib/python<version>/dist-packages. On other platforms (mainly Mac and |
| Windows), it uses just sys.prefix (and sys.exec_prefix, if different, |
| but this is unlikely). The resulting directories, if they exist, are |
| appended to sys.path, and also inspected for path configuration files. |
| |
| FOR DEBIAN, this sys.path is augmented with directories in /usr/local. |
| Local addons go into /usr/local/lib/python<version>/site-packages |
| (resp. /usr/local/lib/site-python), Debian addons install into |
| /usr/{lib,share}/python<version>/dist-packages. |
| |
| 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.X/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.X/site-packages/bar |
| /usr/local/lib/python2.X/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 |
| try: |
| import __builtin__ as builtins |
| except ImportError: |
| import builtins |
| try: |
| set |
| except NameError: |
| from sets import Set as set |
| |
| # 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 = None |
| # for distutils.commands.install |
| USER_SITE = None |
| USER_BASE = None |
| |
| _is_64bit = (getattr(sys, 'maxsize', None) or getattr(sys, 'maxint')) > 2**32 |
| _is_pypy = hasattr(sys, 'pypy_version_info') |
| _is_jython = sys.platform[:4] == 'java' |
| if _is_jython: |
| ModuleType = type(os) |
| |
| def makepath(*paths): |
| dir = os.path.join(*paths) |
| if _is_jython and (dir == '__classpath__' or |
| dir.startswith('__pyclasspath__')): |
| return dir, dir |
| dir = os.path.abspath(dir) |
| 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 ((_is_jython and not isinstance(m, ModuleType)) or |
| hasattr(m, '__loader__')): |
| # only modules need the abspath in Jython. and don't mess |
| # with a PEP 302-supplied __file__ |
| continue |
| f = getattr(m, '__file__', None) |
| if f is None: |
| continue |
| m.__file__ = os.path.abspath(f) |
| |
| 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 |
| |
| # XXX This should not be part of site.py, since it is needed even when |
| # using the -S option for Python. See http://www.python.org/sf/586680 |
| def addbuilddir(): |
| """Append ./build/lib.<platform> in case we're running in the build dir |
| (especially for Guido :-)""" |
| from distutils.util import get_platform |
| s = "build/lib.%s-%.3s" % (get_platform(), sys.version) |
| if hasattr(sys, 'gettotalrefcount'): |
| s += '-pydebug' |
| s = os.path.join(os.path.dirname(sys.path[-1]), s) |
| sys.path.append(s) |
| |
| 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): |
| """Add a new path to known_paths by combining sitedir and 'name' or execute |
| sitedir 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 |
| try: |
| for line in f: |
| if line.startswith("#"): |
| 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): |
| """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) |
| if reset: |
| known_paths = None |
| return known_paths |
| |
| def addsitepackages(known_paths, sys_prefix=sys.prefix, exec_prefix=sys.exec_prefix): |
| """Add site-packages (and possibly site-python) to sys.path""" |
| prefixes = [os.path.join(sys_prefix, "local"), sys_prefix] |
| if exec_prefix != sys_prefix: |
| prefixes.append(os.path.join(exec_prefix, "local")) |
| |
| for prefix in prefixes: |
| if prefix: |
| if sys.platform in ('os2emx', 'riscos') or _is_jython: |
| sitedirs = [os.path.join(prefix, "Lib", "site-packages")] |
| elif _is_pypy: |
| sitedirs = [os.path.join(prefix, 'site-packages')] |
| elif sys.platform == 'darwin' and prefix == sys_prefix: |
| |
| if prefix.startswith("/System/Library/Frameworks/"): # Apple's Python |
| |
| sitedirs = [os.path.join("/Library/Python", sys.version[:3], "site-packages"), |
| os.path.join(prefix, "Extras", "lib", "python")] |
| |
| else: # any other Python distros on OSX work this way |
| sitedirs = [os.path.join(prefix, "lib", |
| "python" + sys.version[:3], "site-packages")] |
| |
| elif os.sep == '/': |
| sitedirs = [os.path.join(prefix, |
| "lib", |
| "python" + sys.version[:3], |
| "site-packages"), |
| os.path.join(prefix, "lib", "site-python"), |
| os.path.join(prefix, "python" + sys.version[:3], "lib-dynload")] |
| lib64_dir = os.path.join(prefix, "lib64", "python" + sys.version[:3], "site-packages") |
| if (os.path.exists(lib64_dir) and |
| os.path.realpath(lib64_dir) not in [os.path.realpath(p) for p in sitedirs]): |
| if _is_64bit: |
| sitedirs.insert(0, lib64_dir) |
| else: |
| sitedirs.append(lib64_dir) |
| try: |
| # sys.getobjects only available in --with-pydebug build |
| sys.getobjects |
| sitedirs.insert(0, os.path.join(sitedirs[0], 'debug')) |
| except AttributeError: |
| pass |
| # Debian-specific dist-packages directories: |
| sitedirs.append(os.path.join(prefix, "local/lib", |
| "python" + sys.version[:3], |
| "dist-packages")) |
| if sys.version[0] == '2': |
| sitedirs.append(os.path.join(prefix, "lib", |
| "python" + sys.version[:3], |
| "dist-packages")) |
| else: |
| sitedirs.append(os.path.join(prefix, "lib", |
| "python" + sys.version[0], |
| "dist-packages")) |
| sitedirs.append(os.path.join(prefix, "lib", "dist-python")) |
| else: |
| sitedirs = [prefix, 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: |
| 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) |
| return None |
| |
| 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 hasattr(sys, 'flags') and getattr(sys.flags, 'no_user_site', False): |
| 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 "~" |
| if env_base: |
| USER_BASE = env_base |
| else: |
| USER_BASE = joinuser(base, "Python") |
| USER_SITE = os.path.join(USER_BASE, |
| "Python" + sys.version[0] + sys.version[2], |
| "site-packages") |
| else: |
| if env_base: |
| USER_BASE = env_base |
| else: |
| USER_BASE = 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 ("lib", "local/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 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) |
| builtins.quit = Quitter('quit') |
| builtins.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 = open(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: |
| 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() |
