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lib64/python3.8/sysconfig.py 0000644 00000060500 15204152356 0011620 0 ustar 00 """Access to Python's configuration information.""" import os import sys from os.path import pardir, realpath __all__ = [ 'get_config_h_filename', 'get_config_var', 'get_config_vars', 'get_makefile_filename', 'get_path', 'get_path_names', 'get_paths', 'get_platform', 'get_python_version', 'get_scheme_names', 'parse_config_h', ] # Keys for get_config_var() that are never converted to Python integers. _ALWAYS_STR = { 'MACOSX_DEPLOYMENT_TARGET', } _INSTALL_SCHEMES = { 'posix_prefix': { 'stdlib': '{installed_base}/lib64/python{py_version_short}', 'platstdlib': '{platbase}/lib64/python{py_version_short}', 'purelib': '{base}/lib/python{py_version_short}/site-packages', 'platlib': '{platbase}/lib64/python{py_version_short}/site-packages', 'include': '{installed_base}/include/python{py_version_short}{abiflags}', 'platinclude': '{installed_platbase}/include/python{py_version_short}{abiflags}', 'scripts': '{base}/bin', 'data': '{base}', }, 'posix_home': { 'stdlib': '{installed_base}/lib/python', 'platstdlib': '{base}/lib/python', 'purelib': '{base}/lib/python', 'platlib': '{base}/lib/python', 'include': '{installed_base}/include/python', 'platinclude': '{installed_base}/include/python', 'scripts': '{base}/bin', 'data': '{base}', }, 'nt': { 'stdlib': '{installed_base}/Lib', 'platstdlib': '{base}/Lib', 'purelib': '{base}/Lib/site-packages', 'platlib': '{base}/Lib/site-packages', 'include': '{installed_base}/Include', 'platinclude': '{installed_base}/Include', 'scripts': '{base}/Scripts', 'data': '{base}', }, # NOTE: When modifying "purelib" scheme, update site._get_path() too. 'nt_user': { 'stdlib': '{userbase}/Python{py_version_nodot}', 'platstdlib': '{userbase}/Python{py_version_nodot}', 'purelib': '{userbase}/Python{py_version_nodot}/site-packages', 'platlib': '{userbase}/Python{py_version_nodot}/site-packages', 'include': '{userbase}/Python{py_version_nodot}/Include', 'scripts': '{userbase}/Python{py_version_nodot}/Scripts', 'data': '{userbase}', }, 'posix_user': { 'stdlib': '{userbase}/lib64/python{py_version_short}', 'platstdlib': '{userbase}/lib64/python{py_version_short}', 'purelib': '{userbase}/lib/python{py_version_short}/site-packages', 'platlib': '{userbase}/lib64/python{py_version_short}/site-packages', 'include': '{userbase}/include/python{py_version_short}', 'scripts': '{userbase}/bin', 'data': '{userbase}', }, 'osx_framework_user': { 'stdlib': '{userbase}/lib/python', 'platstdlib': '{userbase}/lib/python', 'purelib': '{userbase}/lib/python/site-packages', 'platlib': '{userbase}/lib/python/site-packages', 'include': '{userbase}/include', 'scripts': '{userbase}/bin', 'data': '{userbase}', }, } _SCHEME_KEYS = ('stdlib', 'platstdlib', 'purelib', 'platlib', 'include', 'scripts', 'data') # FIXME don't rely on sys.version here, its format is an implementation detail # of CPython, use sys.version_info or sys.hexversion _PY_VERSION = sys.version.split()[0] _PY_VERSION_SHORT = '%d.%d' % sys.version_info[:2] _PY_VERSION_SHORT_NO_DOT = '%d%d' % sys.version_info[:2] _PREFIX = os.path.normpath(sys.prefix) _BASE_PREFIX = os.path.normpath(sys.base_prefix) _EXEC_PREFIX = os.path.normpath(sys.exec_prefix) _BASE_EXEC_PREFIX = os.path.normpath(sys.base_exec_prefix) _CONFIG_VARS = None _USER_BASE = None def _safe_realpath(path): try: return realpath(path) except OSError: return path if sys.executable: _PROJECT_BASE = os.path.dirname(_safe_realpath(sys.executable)) else: # sys.executable can be empty if argv[0] has been changed and Python is # unable to retrieve the real program name _PROJECT_BASE = _safe_realpath(os.getcwd()) if (os.name == 'nt' and _PROJECT_BASE.lower().endswith(('\\pcbuild\\win32', '\\pcbuild\\amd64'))): _PROJECT_BASE = _safe_realpath(os.path.join(_PROJECT_BASE, pardir, pardir)) # set for cross builds if "_PYTHON_PROJECT_BASE" in os.environ: _PROJECT_BASE = _safe_realpath(os.environ["_PYTHON_PROJECT_BASE"]) def _is_python_source_dir(d): for fn in ("Setup", "Setup.local"): if os.path.isfile(os.path.join(d, "Modules", fn)): return True return False _sys_home = getattr(sys, '_home', None) if os.name == 'nt': def _fix_pcbuild(d): if d and os.path.normcase(d).startswith( os.path.normcase(os.path.join(_PREFIX, "PCbuild"))): return _PREFIX return d _PROJECT_BASE = _fix_pcbuild(_PROJECT_BASE) _sys_home = _fix_pcbuild(_sys_home) def is_python_build(check_home=False): if check_home and _sys_home: return _is_python_source_dir(_sys_home) return _is_python_source_dir(_PROJECT_BASE) _PYTHON_BUILD = is_python_build(True) if _PYTHON_BUILD: for scheme in ('posix_prefix', 'posix_home'): _INSTALL_SCHEMES[scheme]['include'] = '{srcdir}/Include' _INSTALL_SCHEMES[scheme]['platinclude'] = '{projectbase}/.' def _subst_vars(s, local_vars): try: return s.format(**local_vars) except KeyError: try: return s.format(**os.environ) except KeyError as var: raise AttributeError('{%s}' % var) from None def _extend_dict(target_dict, other_dict): target_keys = target_dict.keys() for key, value in other_dict.items(): if key in target_keys: continue target_dict[key] = value def _expand_vars(scheme, vars): res = {} if vars is None: vars = {} _extend_dict(vars, get_config_vars()) for key, value in _INSTALL_SCHEMES[scheme].items(): if os.name in ('posix', 'nt'): value = os.path.expanduser(value) res[key] = os.path.normpath(_subst_vars(value, vars)) return res def _get_default_scheme(): if os.name == 'posix': # the default scheme for posix is posix_prefix return 'posix_prefix' return os.name # NOTE: site.py has copy of this function. # Sync it when modify this function. def _getuserbase(): env_base = os.environ.get("PYTHONUSERBASE", None) if env_base: return env_base def joinuser(*args): return os.path.expanduser(os.path.join(*args)) if os.name == "nt": base = os.environ.get("APPDATA") or "~" return joinuser(base, "Python") if sys.platform == "darwin" and sys._framework: return joinuser("~", "Library", sys._framework, "%d.%d" % sys.version_info[:2]) return joinuser("~", ".local") def _parse_makefile(filename, vars=None): """Parse a Makefile-style file. A dictionary containing name/value pairs is returned. If an optional dictionary is passed in as the second argument, it is used instead of a new dictionary. """ # Regexes needed for parsing Makefile (and similar syntaxes, # like old-style Setup files). import re _variable_rx = re.compile(r"([a-zA-Z][a-zA-Z0-9_]+)\s*=\s*(.*)") _findvar1_rx = re.compile(r"\$\(([A-Za-z][A-Za-z0-9_]*)\)") _findvar2_rx = re.compile(r"\${([A-Za-z][A-Za-z0-9_]*)}") if vars is None: vars = {} done = {} notdone = {} with open(filename, errors="surrogateescape") as f: lines = f.readlines() for line in lines: if line.startswith('#') or line.strip() == '': continue m = _variable_rx.match(line) if m: n, v = m.group(1, 2) v = v.strip() # `$$' is a literal `$' in make tmpv = v.replace('$$', '') if "$" in tmpv: notdone[n] = v else: try: if n in _ALWAYS_STR: raise ValueError v = int(v) except ValueError: # insert literal `$' done[n] = v.replace('$$', '$') else: done[n] = v # do variable interpolation here variables = list(notdone.keys()) # Variables with a 'PY_' prefix in the makefile. These need to # be made available without that prefix through sysconfig. # Special care is needed to ensure that variable expansion works, even # if the expansion uses the name without a prefix. renamed_variables = ('CFLAGS', 'LDFLAGS', 'CPPFLAGS') while len(variables) > 0: for name in tuple(variables): value = notdone[name] m1 = _findvar1_rx.search(value) m2 = _findvar2_rx.search(value) if m1 and m2: m = m1 if m1.start() < m2.start() else m2 else: m = m1 if m1 else m2 if m is not None: n = m.group(1) found = True if n in done: item = str(done[n]) elif n in notdone: # get it on a subsequent round found = False elif n in os.environ: # do it like make: fall back to environment item = os.environ[n] elif n in renamed_variables: if (name.startswith('PY_') and name[3:] in renamed_variables): item = "" elif 'PY_' + n in notdone: found = False else: item = str(done['PY_' + n]) else: done[n] = item = "" if found: after = value[m.end():] value = value[:m.start()] + item + after if "$" in after: notdone[name] = value else: try: if name in _ALWAYS_STR: raise ValueError value = int(value) except ValueError: done[name] = value.strip() else: done[name] = value variables.remove(name) if name.startswith('PY_') \ and name[3:] in renamed_variables: name = name[3:] if name not in done: done[name] = value else: # bogus variable reference (e.g. "prefix=$/opt/python"); # just drop it since we can't deal done[name] = value variables.remove(name) # strip spurious spaces for k, v in done.items(): if isinstance(v, str): done[k] = v.strip() # save the results in the global dictionary vars.update(done) return vars def get_makefile_filename(): """Return the path of the Makefile.""" if _PYTHON_BUILD: return os.path.join(_sys_home or _PROJECT_BASE, "Makefile") if hasattr(sys, 'abiflags'): config_dir_name = 'config-%s%s' % (_PY_VERSION_SHORT, sys.abiflags) else: config_dir_name = 'config' if hasattr(sys.implementation, '_multiarch'): config_dir_name += '-%s' % sys.implementation._multiarch return os.path.join(get_path('stdlib'), config_dir_name, 'Makefile') def _get_sysconfigdata_name(): return os.environ.get('_PYTHON_SYSCONFIGDATA_NAME', '_sysconfigdata_{abi}_{platform}_{multiarch}'.format( abi=sys.abiflags, platform=sys.platform, multiarch=getattr(sys.implementation, '_multiarch', ''), )) def _generate_posix_vars(): """Generate the Python module containing build-time variables.""" import pprint vars = {} # load the installed Makefile: makefile = get_makefile_filename() try: _parse_makefile(makefile, vars) except OSError as e: msg = "invalid Python installation: unable to open %s" % makefile if hasattr(e, "strerror"): msg = msg + " (%s)" % e.strerror raise OSError(msg) # load the installed pyconfig.h: config_h = get_config_h_filename() try: with open(config_h) as f: parse_config_h(f, vars) except OSError as e: msg = "invalid Python installation: unable to open %s" % config_h if hasattr(e, "strerror"): msg = msg + " (%s)" % e.strerror raise OSError(msg) # On AIX, there are wrong paths to the linker scripts in the Makefile # -- these paths are relative to the Python source, but when installed # the scripts are in another directory. if _PYTHON_BUILD: vars['BLDSHARED'] = vars['LDSHARED'] # There's a chicken-and-egg situation on OS X with regards to the # _sysconfigdata module after the changes introduced by #15298: # get_config_vars() is called by get_platform() as part of the # `make pybuilddir.txt` target -- which is a precursor to the # _sysconfigdata.py module being constructed. Unfortunately, # get_config_vars() eventually calls _init_posix(), which attempts # to import _sysconfigdata, which we won't have built yet. In order # for _init_posix() to work, if we're on Darwin, just mock up the # _sysconfigdata module manually and populate it with the build vars. # This is more than sufficient for ensuring the subsequent call to # get_platform() succeeds. name = _get_sysconfigdata_name() if 'darwin' in sys.platform: import types module = types.ModuleType(name) module.build_time_vars = vars sys.modules[name] = module pybuilddir = 'build/lib.%s-%s' % (get_platform(), _PY_VERSION_SHORT) if hasattr(sys, "gettotalrefcount"): pybuilddir += '-pydebug' os.makedirs(pybuilddir, exist_ok=True) destfile = os.path.join(pybuilddir, name + '.py') with open(destfile, 'w', encoding='utf8') as f: f.write('# system configuration generated and used by' ' the sysconfig module\n') f.write('build_time_vars = ') pprint.pprint(vars, stream=f) # Create file used for sys.path fixup -- see Modules/getpath.c with open('pybuilddir.txt', 'w', encoding='utf8') as f: f.write(pybuilddir) def _init_posix(vars): """Initialize the module as appropriate for POSIX systems.""" # _sysconfigdata is generated at build time, see _generate_posix_vars() name = _get_sysconfigdata_name() _temp = __import__(name, globals(), locals(), ['build_time_vars'], 0) build_time_vars = _temp.build_time_vars vars.update(build_time_vars) def _init_non_posix(vars): """Initialize the module as appropriate for NT""" # set basic install directories import _imp vars['LIBDEST'] = get_path('stdlib') vars['BINLIBDEST'] = get_path('platstdlib') vars['INCLUDEPY'] = get_path('include') vars['EXT_SUFFIX'] = _imp.extension_suffixes()[0] vars['EXE'] = '.exe' vars['VERSION'] = _PY_VERSION_SHORT_NO_DOT vars['BINDIR'] = os.path.dirname(_safe_realpath(sys.executable)) # # public APIs # def parse_config_h(fp, vars=None): """Parse a config.h-style file. A dictionary containing name/value pairs is returned. If an optional dictionary is passed in as the second argument, it is used instead of a new dictionary. """ if vars is None: vars = {} import re define_rx = re.compile("#define ([A-Z][A-Za-z0-9_]+) (.*)\n") undef_rx = re.compile("/[*] #undef ([A-Z][A-Za-z0-9_]+) [*]/\n") while True: line = fp.readline() if not line: break m = define_rx.match(line) if m: n, v = m.group(1, 2) try: if n in _ALWAYS_STR: raise ValueError v = int(v) except ValueError: pass vars[n] = v else: m = undef_rx.match(line) if m: vars[m.group(1)] = 0 return vars def get_config_h_filename(): """Return the path of pyconfig.h.""" if _PYTHON_BUILD: if os.name == "nt": inc_dir = os.path.join(_sys_home or _PROJECT_BASE, "PC") else: inc_dir = _sys_home or _PROJECT_BASE else: inc_dir = get_path('platinclude') return os.path.join(inc_dir, 'pyconfig-64.h') def get_scheme_names(): """Return a tuple containing the schemes names.""" return tuple(sorted(_INSTALL_SCHEMES)) def get_path_names(): """Return a tuple containing the paths names.""" return _SCHEME_KEYS def get_paths(scheme=_get_default_scheme(), vars=None, expand=True): """Return a mapping containing an install scheme. ``scheme`` is the install scheme name. If not provided, it will return the default scheme for the current platform. """ if expand: return _expand_vars(scheme, vars) else: return _INSTALL_SCHEMES[scheme] def get_path(name, scheme=_get_default_scheme(), vars=None, expand=True): """Return a path corresponding to the scheme. ``scheme`` is the install scheme name. """ return get_paths(scheme, vars, expand)[name] def get_config_vars(*args): """With no arguments, return a dictionary of all configuration variables relevant for the current platform. On Unix, this means every variable defined in Python's installed Makefile; On Windows it's a much smaller set. With arguments, return a list of values that result from looking up each argument in the configuration variable dictionary. """ global _CONFIG_VARS if _CONFIG_VARS is None: _CONFIG_VARS = {} # Normalized versions of prefix and exec_prefix are handy to have; # in fact, these are the standard versions used most places in the # Distutils. _CONFIG_VARS['prefix'] = _PREFIX _CONFIG_VARS['exec_prefix'] = _EXEC_PREFIX _CONFIG_VARS['py_version'] = _PY_VERSION _CONFIG_VARS['py_version_short'] = _PY_VERSION_SHORT _CONFIG_VARS['py_version_nodot'] = _PY_VERSION_SHORT_NO_DOT _CONFIG_VARS['installed_base'] = _BASE_PREFIX _CONFIG_VARS['base'] = _PREFIX _CONFIG_VARS['installed_platbase'] = _BASE_EXEC_PREFIX _CONFIG_VARS['platbase'] = _EXEC_PREFIX _CONFIG_VARS['projectbase'] = _PROJECT_BASE try: _CONFIG_VARS['abiflags'] = sys.abiflags except AttributeError: # sys.abiflags may not be defined on all platforms. _CONFIG_VARS['abiflags'] = '' if os.name == 'nt': _init_non_posix(_CONFIG_VARS) if os.name == 'posix': _init_posix(_CONFIG_VARS) # For backward compatibility, see issue19555 SO = _CONFIG_VARS.get('EXT_SUFFIX') if SO is not None: _CONFIG_VARS['SO'] = SO # Setting 'userbase' is done below the call to the # init function to enable using 'get_config_var' in # the init-function. _CONFIG_VARS['userbase'] = _getuserbase() # Always convert srcdir to an absolute path srcdir = _CONFIG_VARS.get('srcdir', _PROJECT_BASE) if os.name == 'posix': if _PYTHON_BUILD: # If srcdir is a relative path (typically '.' or '..') # then it should be interpreted relative to the directory # containing Makefile. base = os.path.dirname(get_makefile_filename()) srcdir = os.path.join(base, srcdir) else: # srcdir is not meaningful since the installation is # spread about the filesystem. We choose the # directory containing the Makefile since we know it # exists. srcdir = os.path.dirname(get_makefile_filename()) _CONFIG_VARS['srcdir'] = _safe_realpath(srcdir) # OS X platforms require special customization to handle # multi-architecture, multi-os-version installers if sys.platform == 'darwin': import _osx_support _osx_support.customize_config_vars(_CONFIG_VARS) if args: vals = [] for name in args: vals.append(_CONFIG_VARS.get(name)) return vals else: return _CONFIG_VARS def get_config_var(name): """Return the value of a single variable using the dictionary returned by 'get_config_vars()'. Equivalent to get_config_vars().get(name) """ if name == 'SO': import warnings warnings.warn('SO is deprecated, use EXT_SUFFIX', DeprecationWarning, 2) return get_config_vars().get(name) def get_platform(): """Return a string that identifies the current platform. This is used mainly to distinguish platform-specific build directories and platform-specific built distributions. Typically includes the OS name and version and the architecture (as supplied by 'os.uname()'), although the exact information included depends on the OS; on Linux, the kernel version isn't particularly important. Examples of returned values: linux-i586 linux-alpha (?) solaris-2.6-sun4u Windows will return one of: win-amd64 (64bit Windows on AMD64 (aka x86_64, Intel64, EM64T, etc) win32 (all others - specifically, sys.platform is returned) For other non-POSIX platforms, currently just returns 'sys.platform'. """ if os.name == 'nt': if 'amd64' in sys.version.lower(): return 'win-amd64' if '(arm)' in sys.version.lower(): return 'win-arm32' if '(arm64)' in sys.version.lower(): return 'win-arm64' return sys.platform if os.name != "posix" or not hasattr(os, 'uname'): # XXX what about the architecture? NT is Intel or Alpha return sys.platform # Set for cross builds explicitly if "_PYTHON_HOST_PLATFORM" in os.environ: return os.environ["_PYTHON_HOST_PLATFORM"] # Try to distinguish various flavours of Unix osname, host, release, version, machine = os.uname() # Convert the OS name to lowercase, remove '/' characters, and translate # spaces (for "Power Macintosh") osname = osname.lower().replace('/', '') machine = machine.replace(' ', '_') machine = machine.replace('/', '-') if osname[:5] == "linux": # At least on Linux/Intel, 'machine' is the processor -- # i386, etc. # XXX what about Alpha, SPARC, etc? return "%s-%s" % (osname, machine) elif osname[:5] == "sunos": if release[0] >= "5": # SunOS 5 == Solaris 2 osname = "solaris" release = "%d.%s" % (int(release[0]) - 3, release[2:]) # We can't use "platform.architecture()[0]" because a # bootstrap problem. We use a dict to get an error # if some suspicious happens. bitness = {2147483647:"32bit", 9223372036854775807:"64bit"} machine += ".%s" % bitness[sys.maxsize] # fall through to standard osname-release-machine representation elif osname[:3] == "aix": return "%s-%s.%s" % (osname, version, release) elif osname[:6] == "cygwin": osname = "cygwin" import re rel_re = re.compile(r'[\d.]+') m = rel_re.match(release) if m: release = m.group() elif osname[:6] == "darwin": import _osx_support osname, release, machine = _osx_support.get_platform_osx( get_config_vars(), osname, release, machine) return "%s-%s-%s" % (osname, release, machine) def get_python_version(): return _PY_VERSION_SHORT def _print_dict(title, data): for index, (key, value) in enumerate(sorted(data.items())): if index == 0: print('%s: ' % (title)) print('\t%s = "%s"' % (key, value)) def _main(): """Display all information sysconfig detains.""" if '--generate-posix-vars' in sys.argv: _generate_posix_vars() return print('Platform: "%s"' % get_platform()) print('Python version: "%s"' % get_python_version()) print('Current installation scheme: "%s"' % _get_default_scheme()) print() _print_dict('Paths', get_paths()) print() _print_dict('Variables', get_config_vars()) if __name__ == '__main__': _main() lib64/python3.6/distutils/sysconfig.py 0000644 00000047310 15204216650 0013644 0 ustar 00 """Provide access to Python's configuration information. The specific configuration variables available depend heavily on the platform and configuration. The values may be retrieved using get_config_var(name), and the list of variables is available via get_config_vars().keys(). Additional convenience functions are also available. Written by: Fred L. Drake, Jr. Email: <fdrake@acm.org> """ import _imp import os import re import sys from .errors import DistutilsPlatformError # These are needed in a couple of spots, so just compute them once. PREFIX = os.path.normpath(sys.prefix) EXEC_PREFIX = os.path.normpath(sys.exec_prefix) BASE_PREFIX = os.path.normpath(sys.base_prefix) BASE_EXEC_PREFIX = os.path.normpath(sys.base_exec_prefix) # Path to the base directory of the project. On Windows the binary may # live in project/PCBuild/win32 or project/PCBuild/amd64. # set for cross builds if "_PYTHON_PROJECT_BASE" in os.environ: project_base = os.path.abspath(os.environ["_PYTHON_PROJECT_BASE"]) else: project_base = os.path.dirname(os.path.abspath(sys.executable)) if (os.name == 'nt' and project_base.lower().endswith(('\\pcbuild\\win32', '\\pcbuild\\amd64'))): project_base = os.path.dirname(os.path.dirname(project_base)) # python_build: (Boolean) if true, we're either building Python or # building an extension with an un-installed Python, so we use # different (hard-wired) directories. # Setup.local is available for Makefile builds including VPATH builds, # Setup.dist is available on Windows def _is_python_source_dir(d): for fn in ("Setup.dist", "Setup.local"): if os.path.isfile(os.path.join(d, "Modules", fn)): return True return False _sys_home = getattr(sys, '_home', None) if (_sys_home and os.name == 'nt' and _sys_home.lower().endswith(('\\pcbuild\\win32', '\\pcbuild\\amd64'))): _sys_home = os.path.dirname(os.path.dirname(_sys_home)) def _python_build(): if _sys_home: return _is_python_source_dir(_sys_home) return _is_python_source_dir(project_base) python_build = _python_build() # Calculate the build qualifier flags if they are defined. Adding the flags # to the include and lib directories only makes sense for an installation, not # an in-source build. build_flags = '' try: if not python_build: build_flags = sys.abiflags except AttributeError: # It's not a configure-based build, so the sys module doesn't have # this attribute, which is fine. pass def get_python_version(): """Return a string containing the major and minor Python version, leaving off the patchlevel. Sample return values could be '1.5' or '2.2'. """ return '%d.%d' % sys.version_info[:2] def get_python_inc(plat_specific=0, prefix=None): """Return the directory containing installed Python header files. If 'plat_specific' is false (the default), this is the path to the non-platform-specific header files, i.e. Python.h and so on; otherwise, this is the path to platform-specific header files (namely pyconfig.h). If 'prefix' is supplied, use it instead of sys.base_prefix or sys.base_exec_prefix -- i.e., ignore 'plat_specific'. """ if prefix is None: prefix = plat_specific and BASE_EXEC_PREFIX or BASE_PREFIX if os.name == "posix": if python_build: # Assume the executable is in the build directory. The # pyconfig.h file should be in the same directory. Since # the build directory may not be the source directory, we # must use "srcdir" from the makefile to find the "Include" # directory. if plat_specific: return _sys_home or project_base else: incdir = os.path.join(get_config_var('srcdir'), 'Include') return os.path.normpath(incdir) python_dir = 'python' + get_python_version() + build_flags return os.path.join(prefix, "include", python_dir) elif os.name == "nt": return os.path.join(prefix, "include") else: raise DistutilsPlatformError( "I don't know where Python installs its C header files " "on platform '%s'" % os.name) def get_python_lib(plat_specific=0, standard_lib=0, prefix=None): """Return the directory containing the Python library (standard or site additions). If 'plat_specific' is true, return the directory containing platform-specific modules, i.e. any module from a non-pure-Python module distribution; otherwise, return the platform-shared library directory. If 'standard_lib' is true, return the directory containing standard Python library modules; otherwise, return the directory for site-specific modules. If 'prefix' is supplied, use it instead of sys.base_prefix or sys.base_exec_prefix -- i.e., ignore 'plat_specific'. """ if prefix is None: if standard_lib: prefix = plat_specific and BASE_EXEC_PREFIX or BASE_PREFIX else: prefix = plat_specific and EXEC_PREFIX or PREFIX if os.name == "posix": if plat_specific or standard_lib: lib = "lib64" else: lib = "lib" libpython = os.path.join(prefix, lib, "python" + get_python_version()) if standard_lib: return libpython else: return os.path.join(libpython, "site-packages") elif os.name == "nt": if standard_lib: return os.path.join(prefix, "Lib") else: return os.path.join(prefix, "Lib", "site-packages") else: raise DistutilsPlatformError( "I don't know where Python installs its library " "on platform '%s'" % os.name) def customize_compiler(compiler): """Do any platform-specific customization of a CCompiler instance. Mainly needed on Unix, so we can plug in the information that varies across Unices and is stored in Python's Makefile. """ if compiler.compiler_type == "unix": if sys.platform == "darwin": # Perform first-time customization of compiler-related # config vars on OS X now that we know we need a compiler. # This is primarily to support Pythons from binary # installers. The kind and paths to build tools on # the user system may vary significantly from the system # that Python itself was built on. Also the user OS # version and build tools may not support the same set # of CPU architectures for universal builds. global _config_vars # Use get_config_var() to ensure _config_vars is initialized. if not get_config_var('CUSTOMIZED_OSX_COMPILER'): import _osx_support _osx_support.customize_compiler(_config_vars) _config_vars['CUSTOMIZED_OSX_COMPILER'] = 'True' (cc, cxx, opt, cflags, ccshared, ldshared, shlib_suffix, ar, ar_flags) = \ get_config_vars('CC', 'CXX', 'OPT', 'CFLAGS', 'CCSHARED', 'LDSHARED', 'SHLIB_SUFFIX', 'AR', 'ARFLAGS') if 'CC' in os.environ: newcc = os.environ['CC'] if (sys.platform == 'darwin' and 'LDSHARED' not in os.environ and ldshared.startswith(cc)): # On OS X, if CC is overridden, use that as the default # command for LDSHARED as well ldshared = newcc + ldshared[len(cc):] cc = newcc if 'CXX' in os.environ: cxx = os.environ['CXX'] if 'LDSHARED' in os.environ: ldshared = os.environ['LDSHARED'] if 'CPP' in os.environ: cpp = os.environ['CPP'] else: cpp = cc + " -E" # not always if 'LDFLAGS' in os.environ: ldshared = ldshared + ' ' + os.environ['LDFLAGS'] if 'CFLAGS' in os.environ: cflags = opt + ' ' + os.environ['CFLAGS'] ldshared = ldshared + ' ' + os.environ['CFLAGS'] if 'CPPFLAGS' in os.environ: cpp = cpp + ' ' + os.environ['CPPFLAGS'] cflags = cflags + ' ' + os.environ['CPPFLAGS'] ldshared = ldshared + ' ' + os.environ['CPPFLAGS'] if 'AR' in os.environ: ar = os.environ['AR'] if 'ARFLAGS' in os.environ: archiver = ar + ' ' + os.environ['ARFLAGS'] else: archiver = ar + ' ' + ar_flags cc_cmd = cc + ' ' + cflags compiler.set_executables( preprocessor=cpp, compiler=cc_cmd, compiler_so=cc_cmd + ' ' + ccshared, compiler_cxx=cxx, linker_so=ldshared, linker_exe=cc, archiver=archiver) compiler.shared_lib_extension = shlib_suffix def get_config_h_filename(): """Return full pathname of installed pyconfig.h file.""" if python_build: if os.name == "nt": inc_dir = os.path.join(_sys_home or project_base, "PC") else: inc_dir = _sys_home or project_base else: inc_dir = get_python_inc(plat_specific=1) return os.path.join(inc_dir, 'pyconfig-64.h') def get_makefile_filename(): """Return full pathname of installed Makefile from the Python build.""" if python_build: return os.path.join(_sys_home or project_base, "Makefile") lib_dir = get_python_lib(plat_specific=0, standard_lib=1) config_file = 'config-{}{}'.format(get_python_version(), build_flags) if hasattr(sys.implementation, '_multiarch'): config_file += '-%s' % sys.implementation._multiarch return os.path.join(lib_dir, config_file, 'Makefile') def parse_config_h(fp, g=None): """Parse a config.h-style file. A dictionary containing name/value pairs is returned. If an optional dictionary is passed in as the second argument, it is used instead of a new dictionary. """ if g is None: g = {} define_rx = re.compile("#define ([A-Z][A-Za-z0-9_]+) (.*)\n") undef_rx = re.compile("/[*] #undef ([A-Z][A-Za-z0-9_]+) [*]/\n") # while True: line = fp.readline() if not line: break m = define_rx.match(line) if m: n, v = m.group(1, 2) try: v = int(v) except ValueError: pass g[n] = v else: m = undef_rx.match(line) if m: g[m.group(1)] = 0 return g # Regexes needed for parsing Makefile (and similar syntaxes, # like old-style Setup files). _variable_rx = re.compile(r"([a-zA-Z][a-zA-Z0-9_]+)\s*=\s*(.*)") _findvar1_rx = re.compile(r"\$\(([A-Za-z][A-Za-z0-9_]*)\)") _findvar2_rx = re.compile(r"\${([A-Za-z][A-Za-z0-9_]*)}") def parse_makefile(fn, g=None): """Parse a Makefile-style file. A dictionary containing name/value pairs is returned. If an optional dictionary is passed in as the second argument, it is used instead of a new dictionary. """ from distutils.text_file import TextFile fp = TextFile(fn, strip_comments=1, skip_blanks=1, join_lines=1, errors="surrogateescape") if g is None: g = {} done = {} notdone = {} while True: line = fp.readline() if line is None: # eof break m = _variable_rx.match(line) if m: n, v = m.group(1, 2) v = v.strip() # `$$' is a literal `$' in make tmpv = v.replace('$$', '') if "$" in tmpv: notdone[n] = v else: try: v = int(v) except ValueError: # insert literal `$' done[n] = v.replace('$$', '$') else: done[n] = v # Variables with a 'PY_' prefix in the makefile. These need to # be made available without that prefix through sysconfig. # Special care is needed to ensure that variable expansion works, even # if the expansion uses the name without a prefix. renamed_variables = ('CFLAGS', 'LDFLAGS', 'CPPFLAGS') # do variable interpolation here while notdone: for name in list(notdone): value = notdone[name] m = _findvar1_rx.search(value) or _findvar2_rx.search(value) if m: n = m.group(1) found = True if n in done: item = str(done[n]) elif n in notdone: # get it on a subsequent round found = False elif n in os.environ: # do it like make: fall back to environment item = os.environ[n] elif n in renamed_variables: if name.startswith('PY_') and name[3:] in renamed_variables: item = "" elif 'PY_' + n in notdone: found = False else: item = str(done['PY_' + n]) else: done[n] = item = "" if found: after = value[m.end():] value = value[:m.start()] + item + after if "$" in after: notdone[name] = value else: try: value = int(value) except ValueError: done[name] = value.strip() else: done[name] = value del notdone[name] if name.startswith('PY_') \ and name[3:] in renamed_variables: name = name[3:] if name not in done: done[name] = value else: # bogus variable reference; just drop it since we can't deal del notdone[name] fp.close() # strip spurious spaces for k, v in done.items(): if isinstance(v, str): done[k] = v.strip() # save the results in the global dictionary g.update(done) return g def expand_makefile_vars(s, vars): """Expand Makefile-style variables -- "${foo}" or "$(foo)" -- in 'string' according to 'vars' (a dictionary mapping variable names to values). Variables not present in 'vars' are silently expanded to the empty string. The variable values in 'vars' should not contain further variable expansions; if 'vars' is the output of 'parse_makefile()', you're fine. Returns a variable-expanded version of 's'. """ # This algorithm does multiple expansion, so if vars['foo'] contains # "${bar}", it will expand ${foo} to ${bar}, and then expand # ${bar}... and so forth. This is fine as long as 'vars' comes from # 'parse_makefile()', which takes care of such expansions eagerly, # according to make's variable expansion semantics. while True: m = _findvar1_rx.search(s) or _findvar2_rx.search(s) if m: (beg, end) = m.span() s = s[0:beg] + vars.get(m.group(1)) + s[end:] else: break return s _config_vars = None def _init_posix(): """Initialize the module as appropriate for POSIX systems.""" # _sysconfigdata is generated at build time, see the sysconfig module name = os.environ.get('_PYTHON_SYSCONFIGDATA_NAME', '_sysconfigdata_{abi}_{platform}_{multiarch}'.format( abi=sys.abiflags, platform=sys.platform, multiarch=getattr(sys.implementation, '_multiarch', ''), )) _temp = __import__(name, globals(), locals(), ['build_time_vars'], 0) build_time_vars = _temp.build_time_vars global _config_vars _config_vars = {} _config_vars.update(build_time_vars) def _init_nt(): """Initialize the module as appropriate for NT""" g = {} # set basic install directories g['LIBDEST'] = get_python_lib(plat_specific=0, standard_lib=1) g['BINLIBDEST'] = get_python_lib(plat_specific=1, standard_lib=1) # XXX hmmm.. a normal install puts include files here g['INCLUDEPY'] = get_python_inc(plat_specific=0) g['EXT_SUFFIX'] = _imp.extension_suffixes()[0] g['EXE'] = ".exe" g['VERSION'] = get_python_version().replace(".", "") g['BINDIR'] = os.path.dirname(os.path.abspath(sys.executable)) global _config_vars _config_vars = g def get_config_vars(*args): """With no arguments, return a dictionary of all configuration variables relevant for the current platform. Generally this includes everything needed to build extensions and install both pure modules and extensions. On Unix, this means every variable defined in Python's installed Makefile; on Windows it's a much smaller set. With arguments, return a list of values that result from looking up each argument in the configuration variable dictionary. """ global _config_vars if _config_vars is None: func = globals().get("_init_" + os.name) if func: func() else: _config_vars = {} # Normalized versions of prefix and exec_prefix are handy to have; # in fact, these are the standard versions used most places in the # Distutils. _config_vars['prefix'] = PREFIX _config_vars['exec_prefix'] = EXEC_PREFIX # For backward compatibility, see issue19555 SO = _config_vars.get('EXT_SUFFIX') if SO is not None: _config_vars['SO'] = SO # Always convert srcdir to an absolute path srcdir = _config_vars.get('srcdir', project_base) if os.name == 'posix': if python_build: # If srcdir is a relative path (typically '.' or '..') # then it should be interpreted relative to the directory # containing Makefile. base = os.path.dirname(get_makefile_filename()) srcdir = os.path.join(base, srcdir) else: # srcdir is not meaningful since the installation is # spread about the filesystem. We choose the # directory containing the Makefile since we know it # exists. srcdir = os.path.dirname(get_makefile_filename()) _config_vars['srcdir'] = os.path.abspath(os.path.normpath(srcdir)) # Convert srcdir into an absolute path if it appears necessary. # Normally it is relative to the build directory. However, during # testing, for example, we might be running a non-installed python # from a different directory. if python_build and os.name == "posix": base = project_base if (not os.path.isabs(_config_vars['srcdir']) and base != os.getcwd()): # srcdir is relative and we are not in the same directory # as the executable. Assume executable is in the build # directory and make srcdir absolute. srcdir = os.path.join(base, _config_vars['srcdir']) _config_vars['srcdir'] = os.path.normpath(srcdir) # OS X platforms require special customization to handle # multi-architecture, multi-os-version installers if sys.platform == 'darwin': import _osx_support _osx_support.customize_config_vars(_config_vars) if args: vals = [] for name in args: vals.append(_config_vars.get(name)) return vals else: return _config_vars def get_config_var(name): """Return the value of a single variable using the dictionary returned by 'get_config_vars()'. Equivalent to get_config_vars().get(name) """ if name == 'SO': import warnings warnings.warn('SO is deprecated, use EXT_SUFFIX', DeprecationWarning, 2) return get_config_vars().get(name) lib64/python3.8/distutils/sysconfig.py 0000644 00000050021 15204243036 0013635 0 ustar 00 """Provide access to Python's configuration information. The specific configuration variables available depend heavily on the platform and configuration. The values may be retrieved using get_config_var(name), and the list of variables is available via get_config_vars().keys(). Additional convenience functions are also available. Written by: Fred L. Drake, Jr. Email: <fdrake@acm.org> """ import _imp import os import re import sys from .errors import DistutilsPlatformError from .util import get_platform, get_host_platform # These are needed in a couple of spots, so just compute them once. PREFIX = os.path.normpath(sys.prefix) EXEC_PREFIX = os.path.normpath(sys.exec_prefix) BASE_PREFIX = os.path.normpath(sys.base_prefix) BASE_EXEC_PREFIX = os.path.normpath(sys.base_exec_prefix) # Path to the base directory of the project. On Windows the binary may # live in project/PCbuild/win32 or project/PCbuild/amd64. # set for cross builds if "_PYTHON_PROJECT_BASE" in os.environ: project_base = os.path.abspath(os.environ["_PYTHON_PROJECT_BASE"]) else: if sys.executable: project_base = os.path.dirname(os.path.abspath(sys.executable)) else: # sys.executable can be empty if argv[0] has been changed and Python is # unable to retrieve the real program name project_base = os.getcwd() # python_build: (Boolean) if true, we're either building Python or # building an extension with an un-installed Python, so we use # different (hard-wired) directories. def _is_python_source_dir(d): for fn in ("Setup", "Setup.local"): if os.path.isfile(os.path.join(d, "Modules", fn)): return True return False _sys_home = getattr(sys, '_home', None) if os.name == 'nt': def _fix_pcbuild(d): if d and os.path.normcase(d).startswith( os.path.normcase(os.path.join(PREFIX, "PCbuild"))): return PREFIX return d project_base = _fix_pcbuild(project_base) _sys_home = _fix_pcbuild(_sys_home) def _python_build(): if _sys_home: return _is_python_source_dir(_sys_home) return _is_python_source_dir(project_base) python_build = _python_build() # Calculate the build qualifier flags if they are defined. Adding the flags # to the include and lib directories only makes sense for an installation, not # an in-source build. build_flags = '' try: if not python_build: build_flags = sys.abiflags except AttributeError: # It's not a configure-based build, so the sys module doesn't have # this attribute, which is fine. pass def get_python_version(): """Return a string containing the major and minor Python version, leaving off the patchlevel. Sample return values could be '1.5' or '2.2'. """ return '%d.%d' % sys.version_info[:2] def get_python_inc(plat_specific=0, prefix=None): """Return the directory containing installed Python header files. If 'plat_specific' is false (the default), this is the path to the non-platform-specific header files, i.e. Python.h and so on; otherwise, this is the path to platform-specific header files (namely pyconfig.h). If 'prefix' is supplied, use it instead of sys.base_prefix or sys.base_exec_prefix -- i.e., ignore 'plat_specific'. """ if prefix is None: prefix = plat_specific and BASE_EXEC_PREFIX or BASE_PREFIX if os.name == "posix": if python_build: # Assume the executable is in the build directory. The # pyconfig.h file should be in the same directory. Since # the build directory may not be the source directory, we # must use "srcdir" from the makefile to find the "Include" # directory. if plat_specific: return _sys_home or project_base else: incdir = os.path.join(get_config_var('srcdir'), 'Include') return os.path.normpath(incdir) python_dir = 'python' + get_python_version() + build_flags return os.path.join(prefix, "include", python_dir) elif os.name == "nt": if python_build: # Include both the include and PC dir to ensure we can find # pyconfig.h return (os.path.join(prefix, "include") + os.path.pathsep + os.path.join(prefix, "PC")) return os.path.join(prefix, "include") else: raise DistutilsPlatformError( "I don't know where Python installs its C header files " "on platform '%s'" % os.name) def get_python_lib(plat_specific=0, standard_lib=0, prefix=None): """Return the directory containing the Python library (standard or site additions). If 'plat_specific' is true, return the directory containing platform-specific modules, i.e. any module from a non-pure-Python module distribution; otherwise, return the platform-shared library directory. If 'standard_lib' is true, return the directory containing standard Python library modules; otherwise, return the directory for site-specific modules. If 'prefix' is supplied, use it instead of sys.base_prefix or sys.base_exec_prefix -- i.e., ignore 'plat_specific'. """ if prefix is None: if standard_lib: prefix = plat_specific and BASE_EXEC_PREFIX or BASE_PREFIX else: prefix = plat_specific and EXEC_PREFIX or PREFIX if os.name == "posix": if plat_specific or standard_lib: lib = "lib64" else: lib = "lib" libpython = os.path.join(prefix, lib, "python" + get_python_version()) if standard_lib: return libpython else: return os.path.join(libpython, "site-packages") elif os.name == "nt": if standard_lib: return os.path.join(prefix, "Lib") else: return os.path.join(prefix, "Lib", "site-packages") else: raise DistutilsPlatformError( "I don't know where Python installs its library " "on platform '%s'" % os.name) def customize_compiler(compiler): """Do any platform-specific customization of a CCompiler instance. Mainly needed on Unix, so we can plug in the information that varies across Unices and is stored in Python's Makefile. """ if compiler.compiler_type == "unix": if sys.platform == "darwin": # Perform first-time customization of compiler-related # config vars on OS X now that we know we need a compiler. # This is primarily to support Pythons from binary # installers. The kind and paths to build tools on # the user system may vary significantly from the system # that Python itself was built on. Also the user OS # version and build tools may not support the same set # of CPU architectures for universal builds. global _config_vars # Use get_config_var() to ensure _config_vars is initialized. if not get_config_var('CUSTOMIZED_OSX_COMPILER'): import _osx_support _osx_support.customize_compiler(_config_vars) _config_vars['CUSTOMIZED_OSX_COMPILER'] = 'True' (cc, cxx, cflags, ccshared, ldshared, shlib_suffix, ar, ar_flags) = \ get_config_vars('CC', 'CXX', 'CFLAGS', 'CCSHARED', 'LDSHARED', 'SHLIB_SUFFIX', 'AR', 'ARFLAGS') if 'CC' in os.environ: newcc = os.environ['CC'] if (sys.platform == 'darwin' and 'LDSHARED' not in os.environ and ldshared.startswith(cc)): # On OS X, if CC is overridden, use that as the default # command for LDSHARED as well ldshared = newcc + ldshared[len(cc):] cc = newcc if 'CXX' in os.environ: cxx = os.environ['CXX'] if 'LDSHARED' in os.environ: ldshared = os.environ['LDSHARED'] if 'CPP' in os.environ: cpp = os.environ['CPP'] else: cpp = cc + " -E" # not always if 'LDFLAGS' in os.environ: ldshared = ldshared + ' ' + os.environ['LDFLAGS'] if 'CFLAGS' in os.environ: cflags = cflags + ' ' + os.environ['CFLAGS'] ldshared = ldshared + ' ' + os.environ['CFLAGS'] if 'CPPFLAGS' in os.environ: cpp = cpp + ' ' + os.environ['CPPFLAGS'] cflags = cflags + ' ' + os.environ['CPPFLAGS'] ldshared = ldshared + ' ' + os.environ['CPPFLAGS'] if 'AR' in os.environ: ar = os.environ['AR'] if 'ARFLAGS' in os.environ: archiver = ar + ' ' + os.environ['ARFLAGS'] else: archiver = ar + ' ' + ar_flags cc_cmd = cc + ' ' + cflags compiler.set_executables( preprocessor=cpp, compiler=cc_cmd, compiler_so=cc_cmd + ' ' + ccshared, compiler_cxx=cxx, linker_so=ldshared, linker_exe=cc, archiver=archiver) compiler.shared_lib_extension = shlib_suffix def get_config_h_filename(): """Return full pathname of installed pyconfig.h file.""" if python_build: if os.name == "nt": inc_dir = os.path.join(_sys_home or project_base, "PC") else: inc_dir = _sys_home or project_base else: inc_dir = get_python_inc(plat_specific=1) return os.path.join(inc_dir, 'pyconfig-64.h') def get_makefile_filename(): """Return full pathname of installed Makefile from the Python build.""" if python_build: return os.path.join(_sys_home or project_base, "Makefile") lib_dir = get_python_lib(plat_specific=0, standard_lib=1) config_file = 'config-{}{}'.format(get_python_version(), build_flags) if hasattr(sys.implementation, '_multiarch'): config_file += '-%s' % sys.implementation._multiarch return os.path.join(lib_dir, config_file, 'Makefile') def parse_config_h(fp, g=None): """Parse a config.h-style file. A dictionary containing name/value pairs is returned. If an optional dictionary is passed in as the second argument, it is used instead of a new dictionary. """ if g is None: g = {} define_rx = re.compile("#define ([A-Z][A-Za-z0-9_]+) (.*)\n") undef_rx = re.compile("/[*] #undef ([A-Z][A-Za-z0-9_]+) [*]/\n") # while True: line = fp.readline() if not line: break m = define_rx.match(line) if m: n, v = m.group(1, 2) try: v = int(v) except ValueError: pass g[n] = v else: m = undef_rx.match(line) if m: g[m.group(1)] = 0 return g # Regexes needed for parsing Makefile (and similar syntaxes, # like old-style Setup files). _variable_rx = re.compile(r"([a-zA-Z][a-zA-Z0-9_]+)\s*=\s*(.*)") _findvar1_rx = re.compile(r"\$\(([A-Za-z][A-Za-z0-9_]*)\)") _findvar2_rx = re.compile(r"\${([A-Za-z][A-Za-z0-9_]*)}") def parse_makefile(fn, g=None): """Parse a Makefile-style file. A dictionary containing name/value pairs is returned. If an optional dictionary is passed in as the second argument, it is used instead of a new dictionary. """ from distutils.text_file import TextFile fp = TextFile(fn, strip_comments=1, skip_blanks=1, join_lines=1, errors="surrogateescape") if g is None: g = {} done = {} notdone = {} while True: line = fp.readline() if line is None: # eof break m = _variable_rx.match(line) if m: n, v = m.group(1, 2) v = v.strip() # `$$' is a literal `$' in make tmpv = v.replace('$$', '') if "$" in tmpv: notdone[n] = v else: try: v = int(v) except ValueError: # insert literal `$' done[n] = v.replace('$$', '$') else: done[n] = v # Variables with a 'PY_' prefix in the makefile. These need to # be made available without that prefix through sysconfig. # Special care is needed to ensure that variable expansion works, even # if the expansion uses the name without a prefix. renamed_variables = ('CFLAGS', 'LDFLAGS', 'CPPFLAGS') # do variable interpolation here while notdone: for name in list(notdone): value = notdone[name] m = _findvar1_rx.search(value) or _findvar2_rx.search(value) if m: n = m.group(1) found = True if n in done: item = str(done[n]) elif n in notdone: # get it on a subsequent round found = False elif n in os.environ: # do it like make: fall back to environment item = os.environ[n] elif n in renamed_variables: if name.startswith('PY_') and name[3:] in renamed_variables: item = "" elif 'PY_' + n in notdone: found = False else: item = str(done['PY_' + n]) else: done[n] = item = "" if found: after = value[m.end():] value = value[:m.start()] + item + after if "$" in after: notdone[name] = value else: try: value = int(value) except ValueError: done[name] = value.strip() else: done[name] = value del notdone[name] if name.startswith('PY_') \ and name[3:] in renamed_variables: name = name[3:] if name not in done: done[name] = value else: # bogus variable reference; just drop it since we can't deal del notdone[name] fp.close() # strip spurious spaces for k, v in done.items(): if isinstance(v, str): done[k] = v.strip() # save the results in the global dictionary g.update(done) return g def expand_makefile_vars(s, vars): """Expand Makefile-style variables -- "${foo}" or "$(foo)" -- in 'string' according to 'vars' (a dictionary mapping variable names to values). Variables not present in 'vars' are silently expanded to the empty string. The variable values in 'vars' should not contain further variable expansions; if 'vars' is the output of 'parse_makefile()', you're fine. Returns a variable-expanded version of 's'. """ # This algorithm does multiple expansion, so if vars['foo'] contains # "${bar}", it will expand ${foo} to ${bar}, and then expand # ${bar}... and so forth. This is fine as long as 'vars' comes from # 'parse_makefile()', which takes care of such expansions eagerly, # according to make's variable expansion semantics. while True: m = _findvar1_rx.search(s) or _findvar2_rx.search(s) if m: (beg, end) = m.span() s = s[0:beg] + vars.get(m.group(1)) + s[end:] else: break return s _config_vars = None def _init_posix(): """Initialize the module as appropriate for POSIX systems.""" # _sysconfigdata is generated at build time, see the sysconfig module name = os.environ.get('_PYTHON_SYSCONFIGDATA_NAME', '_sysconfigdata_{abi}_{platform}_{multiarch}'.format( abi=sys.abiflags, platform=sys.platform, multiarch=getattr(sys.implementation, '_multiarch', ''), )) _temp = __import__(name, globals(), locals(), ['build_time_vars'], 0) build_time_vars = _temp.build_time_vars global _config_vars _config_vars = {} _config_vars.update(build_time_vars) def _init_nt(): """Initialize the module as appropriate for NT""" g = {} # set basic install directories g['LIBDEST'] = get_python_lib(plat_specific=0, standard_lib=1) g['BINLIBDEST'] = get_python_lib(plat_specific=1, standard_lib=1) # XXX hmmm.. a normal install puts include files here g['INCLUDEPY'] = get_python_inc(plat_specific=0) g['EXT_SUFFIX'] = _imp.extension_suffixes()[0] g['EXE'] = ".exe" g['VERSION'] = get_python_version().replace(".", "") g['BINDIR'] = os.path.dirname(os.path.abspath(sys.executable)) global _config_vars _config_vars = g def get_config_vars(*args): """With no arguments, return a dictionary of all configuration variables relevant for the current platform. Generally this includes everything needed to build extensions and install both pure modules and extensions. On Unix, this means every variable defined in Python's installed Makefile; on Windows it's a much smaller set. With arguments, return a list of values that result from looking up each argument in the configuration variable dictionary. """ global _config_vars if _config_vars is None: func = globals().get("_init_" + os.name) if func: func() else: _config_vars = {} # Normalized versions of prefix and exec_prefix are handy to have; # in fact, these are the standard versions used most places in the # Distutils. _config_vars['prefix'] = PREFIX _config_vars['exec_prefix'] = EXEC_PREFIX # For backward compatibility, see issue19555 SO = _config_vars.get('EXT_SUFFIX') if SO is not None: _config_vars['SO'] = SO # Always convert srcdir to an absolute path srcdir = _config_vars.get('srcdir', project_base) if os.name == 'posix': if python_build: # If srcdir is a relative path (typically '.' or '..') # then it should be interpreted relative to the directory # containing Makefile. base = os.path.dirname(get_makefile_filename()) srcdir = os.path.join(base, srcdir) else: # srcdir is not meaningful since the installation is # spread about the filesystem. We choose the # directory containing the Makefile since we know it # exists. srcdir = os.path.dirname(get_makefile_filename()) _config_vars['srcdir'] = os.path.abspath(os.path.normpath(srcdir)) # Convert srcdir into an absolute path if it appears necessary. # Normally it is relative to the build directory. However, during # testing, for example, we might be running a non-installed python # from a different directory. if python_build and os.name == "posix": base = project_base if (not os.path.isabs(_config_vars['srcdir']) and base != os.getcwd()): # srcdir is relative and we are not in the same directory # as the executable. Assume executable is in the build # directory and make srcdir absolute. srcdir = os.path.join(base, _config_vars['srcdir']) _config_vars['srcdir'] = os.path.normpath(srcdir) # OS X platforms require special customization to handle # multi-architecture, multi-os-version installers if sys.platform == 'darwin': import _osx_support _osx_support.customize_config_vars(_config_vars) if args: vals = [] for name in args: vals.append(_config_vars.get(name)) return vals else: return _config_vars def get_config_var(name): """Return the value of a single variable using the dictionary returned by 'get_config_vars()'. Equivalent to get_config_vars().get(name) """ if name == 'SO': import warnings warnings.warn('SO is deprecated, use EXT_SUFFIX', DeprecationWarning, 2) return get_config_vars().get(name)
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