source: titan/mediathek/localhoster/lib/python2.7/sysconfig.py @ 40114

Last change on this file since 40114 was 40099, checked in by obi, 5 years ago

fix

File size: 24.6 KB
Line 
1"""Provide access to Python's configuration information.
2
3"""
4import sys
5import os
6from os.path import pardir, realpath
7
8_INSTALL_SCHEMES = {
9    'posix_prefix': {
10        'stdlib': '{base}/lib/python{py_version_short}',
11        'platstdlib': '{platbase}/lib/python{py_version_short}',
12        'purelib': '{base}/lib/python{py_version_short}/site-packages',
13        'platlib': '{platbase}/lib/python{py_version_short}/site-packages',
14        'include': '{base}/include/python{py_version_short}',
15        'platinclude': '{platbase}/include/python{py_version_short}',
16        'scripts': '{base}/bin',
17        'data': '{base}',
18        },
19    'posix_local': {
20        'stdlib': '{base}/lib/python{py_version_short}',
21        'platstdlib': '{platbase}/lib/python{py_version_short}',
22        'purelib': '{base}/local/lib/python{py_version_short}/dist-packages',
23        'platlib': '{platbase}/local/lib/python{py_version_short}/dist-packages',
24        'include': '{base}/local/include/python{py_version_short}',
25        'platinclude': '{platbase}/local/include/python{py_version_short}',
26        'scripts': '{base}/local/bin',
27        'data': '{base}/local',
28        },
29    'deb_system': {
30        'stdlib': '{base}/lib/python{py_version_short}',
31        'platstdlib': '{platbase}/lib/python{py_version_short}',
32        'purelib': '{base}/lib/python{py_version_short}/dist-packages',
33        'platlib': '{platbase}/lib/python{py_version_short}/dist-packages',
34        'include': '{base}/include/python{py_version_short}',
35        'platinclude': '{platbase}/include/python{py_version_short}',
36        'scripts': '{base}/bin',
37        'data': '{base}',
38        },
39    'posix_home': {
40        'stdlib': '{base}/lib/python',
41        'platstdlib': '{base}/lib/python',
42        'purelib': '{base}/lib/python',
43        'platlib': '{base}/lib/python',
44        'include': '{base}/include/python',
45        'platinclude': '{base}/include/python',
46        'scripts': '{base}/bin',
47        'data'   : '{base}',
48        },
49    'nt': {
50        'stdlib': '{base}/Lib',
51        'platstdlib': '{base}/Lib',
52        'purelib': '{base}/Lib/site-packages',
53        'platlib': '{base}/Lib/site-packages',
54        'include': '{base}/Include',
55        'platinclude': '{base}/Include',
56        'scripts': '{base}/Scripts',
57        'data'   : '{base}',
58        },
59    'os2': {
60        'stdlib': '{base}/Lib',
61        'platstdlib': '{base}/Lib',
62        'purelib': '{base}/Lib/site-packages',
63        'platlib': '{base}/Lib/site-packages',
64        'include': '{base}/Include',
65        'platinclude': '{base}/Include',
66        'scripts': '{base}/Scripts',
67        'data'   : '{base}',
68        },
69    'os2_home': {
70        'stdlib': '{userbase}/lib/python{py_version_short}',
71        'platstdlib': '{userbase}/lib/python{py_version_short}',
72        'purelib': '{userbase}/lib/python{py_version_short}/site-packages',
73        'platlib': '{userbase}/lib/python{py_version_short}/site-packages',
74        'include': '{userbase}/include/python{py_version_short}',
75        'scripts': '{userbase}/bin',
76        'data'   : '{userbase}',
77        },
78    'nt_user': {
79        'stdlib': '{userbase}/Python{py_version_nodot}',
80        'platstdlib': '{userbase}/Python{py_version_nodot}',
81        'purelib': '{userbase}/Python{py_version_nodot}/site-packages',
82        'platlib': '{userbase}/Python{py_version_nodot}/site-packages',
83        'include': '{userbase}/Python{py_version_nodot}/Include',
84        'scripts': '{userbase}/Scripts',
85        'data'   : '{userbase}',
86        },
87    'posix_user': {
88        'stdlib': '{userbase}/lib/python{py_version_short}',
89        'platstdlib': '{userbase}/lib/python{py_version_short}',
90        'purelib': '{userbase}/lib/python{py_version_short}/site-packages',
91        'platlib': '{userbase}/lib/python{py_version_short}/site-packages',
92        'include': '{userbase}/include/python{py_version_short}',
93        'scripts': '{userbase}/bin',
94        'data'   : '{userbase}',
95        },
96    'osx_framework_user': {
97        'stdlib': '{userbase}/lib/python',
98        'platstdlib': '{userbase}/lib/python',
99        'purelib': '{userbase}/lib/python/site-packages',
100        'platlib': '{userbase}/lib/python/site-packages',
101        'include': '{userbase}/include',
102        'scripts': '{userbase}/bin',
103        'data'   : '{userbase}',
104        },
105    }
106
107_SCHEME_KEYS = ('stdlib', 'platstdlib', 'purelib', 'platlib', 'include',
108                'scripts', 'data')
109_PY_VERSION = sys.version.split()[0]
110_PY_VERSION_SHORT = sys.version[:3]
111_PY_VERSION_SHORT_NO_DOT = _PY_VERSION[0] + _PY_VERSION[2]
112_PREFIX = os.path.normpath(sys.prefix)
113_EXEC_PREFIX = os.path.normpath(sys.exec_prefix)
114_CONFIG_VARS = None
115_USER_BASE = None
116
117def _safe_realpath(path):
118    try:
119        return realpath(path)
120    except OSError:
121        return path
122
123if sys.executable:
124    _PROJECT_BASE = os.path.dirname(_safe_realpath(sys.executable))
125else:
126    # sys.executable can be empty if argv[0] has been changed and Python is
127    # unable to retrieve the real program name
128    _PROJECT_BASE = _safe_realpath(os.getcwd())
129
130if os.name == "nt" and "pcbuild" in _PROJECT_BASE[-8:].lower():
131    _PROJECT_BASE = _safe_realpath(os.path.join(_PROJECT_BASE, pardir))
132# PC/VS7.1
133if os.name == "nt" and "\\pc\\v" in _PROJECT_BASE[-10:].lower():
134    _PROJECT_BASE = _safe_realpath(os.path.join(_PROJECT_BASE, pardir, pardir))
135# PC/AMD64
136if os.name == "nt" and "\\pcbuild\\amd64" in _PROJECT_BASE[-14:].lower():
137    _PROJECT_BASE = _safe_realpath(os.path.join(_PROJECT_BASE, pardir, pardir))
138
139# set for cross builds
140if "_PYTHON_PROJECT_BASE" in os.environ:
141    # the build directory for posix builds
142    _PROJECT_BASE = os.path.normpath(os.path.abspath("."))
143def is_python_build():
144    for fn in ("Setup.dist", "Setup.local"):
145        if os.path.isfile(os.path.join(_PROJECT_BASE, "Modules", fn)):
146            return True
147    return False
148
149_PYTHON_BUILD = is_python_build()
150
151if _PYTHON_BUILD:
152    for scheme in ('posix_prefix', 'posix_local', 'deb_system', 'posix_home'):
153        _INSTALL_SCHEMES[scheme]['include'] = '{projectbase}/Include'
154        _INSTALL_SCHEMES[scheme]['platinclude'] = '{srcdir}'
155
156def _subst_vars(s, local_vars):
157    try:
158        return s.format(**local_vars)
159    except KeyError:
160        try:
161            return s.format(**os.environ)
162        except KeyError, var:
163            raise AttributeError('{%s}' % var)
164
165def _extend_dict(target_dict, other_dict):
166    target_keys = target_dict.keys()
167    for key, value in other_dict.items():
168        if key in target_keys:
169            continue
170        target_dict[key] = value
171
172def _expand_vars(scheme, vars):
173    res = {}
174    if vars is None:
175        vars = {}
176    _extend_dict(vars, get_config_vars())
177
178    for key, value in _INSTALL_SCHEMES[scheme].items():
179        if os.name in ('posix', 'nt'):
180            value = os.path.expanduser(value)
181        res[key] = os.path.normpath(_subst_vars(value, vars))
182    return res
183
184def _get_default_scheme():
185    if os.name == 'posix':
186        # the default scheme for posix on Debian/Ubuntu is posix_local
187        # FIXME: return dist-packages/posix_prefix only for
188        #   is_default_prefix and 'PYTHONUSERBASE' not in os.environ and 'real_prefix' not in sys.__dict__
189        # is_default_prefix = not prefix or os.path.normpath(prefix) in ('/usr', '/usr/local')
190        return 'posix_local'
191    return os.name
192
193def _getuserbase():
194    env_base = os.environ.get("PYTHONUSERBASE", None)
195    def joinuser(*args):
196        return os.path.expanduser(os.path.join(*args))
197
198    # what about 'os2emx', 'riscos' ?
199    if os.name == "nt":
200        base = os.environ.get("APPDATA") or "~"
201        return env_base if env_base else joinuser(base, "Python")
202
203    if sys.platform == "darwin":
204        framework = get_config_var("PYTHONFRAMEWORK")
205        if framework:
206            return env_base if env_base else \
207                               joinuser("~", "Library", framework, "%d.%d"
208                                            % (sys.version_info[:2]))
209
210    return env_base if env_base else joinuser("~", ".local")
211
212
213def _parse_makefile(filename, vars=None):
214    """Parse a Makefile-style file.
215
216    A dictionary containing name/value pairs is returned.  If an
217    optional dictionary is passed in as the second argument, it is
218    used instead of a new dictionary.
219    """
220    import re
221    # Regexes needed for parsing Makefile (and similar syntaxes,
222    # like old-style Setup files).
223    _variable_rx = re.compile("([a-zA-Z][a-zA-Z0-9_]+)\s*=\s*(.*)")
224    _findvar1_rx = re.compile(r"\$\(([A-Za-z][A-Za-z0-9_]*)\)")
225    _findvar2_rx = re.compile(r"\${([A-Za-z][A-Za-z0-9_]*)}")
226
227    if vars is None:
228        vars = {}
229    done = {}
230    notdone = {}
231
232    with open(filename) as f:
233        lines = f.readlines()
234
235    for line in lines:
236        if line.startswith('#') or line.strip() == '':
237            continue
238        m = _variable_rx.match(line)
239        if m:
240            n, v = m.group(1, 2)
241            v = v.strip()
242            # `$$' is a literal `$' in make
243            tmpv = v.replace('$$', '')
244
245            if "$" in tmpv:
246                notdone[n] = v
247            else:
248                try:
249                    v = int(v)
250                except ValueError:
251                    # insert literal `$'
252                    done[n] = v.replace('$$', '$')
253                else:
254                    done[n] = v
255
256    # do variable interpolation here
257    variables = list(notdone.keys())
258
259    # Variables with a 'PY_' prefix in the makefile. These need to
260    # be made available without that prefix through sysconfig.
261    # Special care is needed to ensure that variable expansion works, even
262    # if the expansion uses the name without a prefix.
263    renamed_variables = ('CFLAGS', 'LDFLAGS', 'CPPFLAGS')
264
265    while len(variables) > 0:
266        for name in tuple(variables):
267            value = notdone[name]
268            m = _findvar1_rx.search(value) or _findvar2_rx.search(value)
269            if m is not None:
270                n = m.group(1)
271                found = True
272                if n in done:
273                    item = str(done[n])
274                elif n in notdone:
275                    # get it on a subsequent round
276                    found = False
277                elif n in os.environ:
278                    # do it like make: fall back to environment
279                    item = os.environ[n]
280
281                elif n in renamed_variables:
282                    if name.startswith('PY_') and name[3:] in renamed_variables:
283                        item = ""
284
285                    elif 'PY_' + n in notdone:
286                        found = False
287
288                    else:
289                        item = str(done['PY_' + n])
290
291                else:
292                    done[n] = item = ""
293
294                if found:
295                    after = value[m.end():]
296                    value = value[:m.start()] + item + after
297                    if "$" in after:
298                        notdone[name] = value
299                    else:
300                        try:
301                            value = int(value)
302                        except ValueError:
303                            done[name] = value.strip()
304                        else:
305                            done[name] = value
306                        variables.remove(name)
307
308                        if name.startswith('PY_') \
309                        and name[3:] in renamed_variables:
310
311                            name = name[3:]
312                            if name not in done:
313                                done[name] = value
314
315
316            else:
317                # bogus variable reference (e.g. "prefix=$/opt/python");
318                # just drop it since we can't deal
319                done[name] = value
320                variables.remove(name)
321
322    # strip spurious spaces
323    for k, v in done.items():
324        if isinstance(v, str):
325            done[k] = v.strip()
326
327    # save the results in the global dictionary
328    vars.update(done)
329    return vars
330
331
332def get_makefile_filename():
333    """Return the path of the Makefile."""
334    if _PYTHON_BUILD:
335        return os.path.join(_PROJECT_BASE, "Makefile")
336    return os.path.join(get_config_var('LIBPL'), "Makefile")
337
338# Issue #22199: retain undocumented private name for compatibility
339_get_makefile_filename = get_makefile_filename
340
341def _generate_posix_vars():
342    """Generate the Python module containing build-time variables."""
343    import pprint
344    vars = {}
345    # load the installed Makefile:
346    makefile = get_makefile_filename()
347    try:
348        _parse_makefile(makefile, vars)
349    except IOError, e:
350        msg = "invalid Python installation: unable to open %s" % makefile
351        if hasattr(e, "strerror"):
352            msg = msg + " (%s)" % e.strerror
353        raise IOError(msg)
354
355    # load the installed pyconfig.h:
356    config_h = get_config_h_filename()
357    try:
358        with open(config_h) as f:
359            parse_config_h(f, vars)
360    except IOError, e:
361        msg = "invalid Python installation: unable to open %s" % config_h
362        if hasattr(e, "strerror"):
363            msg = msg + " (%s)" % e.strerror
364        raise IOError(msg)
365
366    # On AIX, there are wrong paths to the linker scripts in the Makefile
367    # -- these paths are relative to the Python source, but when installed
368    # the scripts are in another directory.
369    if _PYTHON_BUILD:
370        vars['LDSHARED'] = vars['BLDSHARED']
371
372    # There's a chicken-and-egg situation on OS X with regards to the
373    # _sysconfigdata module after the changes introduced by #15298:
374    # get_config_vars() is called by get_platform() as part of the
375    # `make pybuilddir.txt` target -- which is a precursor to the
376    # _sysconfigdata.py module being constructed.  Unfortunately,
377    # get_config_vars() eventually calls _init_posix(), which attempts
378    # to import _sysconfigdata, which we won't have built yet.  In order
379    # for _init_posix() to work, if we're on Darwin, just mock up the
380    # _sysconfigdata module manually and populate it with the build vars.
381    # This is more than sufficient for ensuring the subsequent call to
382    # get_platform() succeeds.
383    name = '_sysconfigdata'
384    if 'darwin' in sys.platform:
385        import imp
386        module = imp.new_module(name)
387        module.build_time_vars = vars
388        sys.modules[name] = module
389
390    pybuilddir = 'build/lib.%s-%s' % (get_platform(), sys.version[:3])
391    if hasattr(sys, "gettotalrefcount"):
392        pybuilddir += '-pydebug'
393    try:
394        os.makedirs(pybuilddir)
395    except OSError:
396        pass
397    destfile = os.path.join(pybuilddir, name + '.py')
398
399    with open(destfile, 'wb') as f:
400        f.write('# system configuration generated and used by'
401                ' the sysconfig module\n')
402        f.write('build_time_vars = ')
403        pprint.pprint(vars, stream=f)
404
405    # Create file used for sys.path fixup -- see Modules/getpath.c
406    with open('pybuilddir.txt', 'w') as f:
407        f.write(pybuilddir)
408
409def _init_posix(vars):
410    """Initialize the module as appropriate for POSIX systems."""
411    # _sysconfigdata is generated at build time, see _generate_posix_vars()
412    from _sysconfigdata import build_time_vars
413    vars.update(build_time_vars)
414
415def _init_non_posix(vars):
416    """Initialize the module as appropriate for NT"""
417    # set basic install directories
418    vars['LIBDEST'] = get_path('stdlib')
419    vars['BINLIBDEST'] = get_path('platstdlib')
420    vars['INCLUDEPY'] = get_path('include')
421    vars['SO'] = '.pyd'
422    vars['EXE'] = '.exe'
423    vars['VERSION'] = _PY_VERSION_SHORT_NO_DOT
424    vars['BINDIR'] = os.path.dirname(_safe_realpath(sys.executable))
425
426#
427# public APIs
428#
429
430
431def parse_config_h(fp, vars=None):
432    """Parse a config.h-style file.
433
434    A dictionary containing name/value pairs is returned.  If an
435    optional dictionary is passed in as the second argument, it is
436    used instead of a new dictionary.
437    """
438    import re
439    if vars is None:
440        vars = {}
441    define_rx = re.compile("#define ([A-Z][A-Za-z0-9_]+) (.*)\n")
442    undef_rx = re.compile("/[*] #undef ([A-Z][A-Za-z0-9_]+) [*]/\n")
443
444    while True:
445        line = fp.readline()
446        if not line:
447            break
448        m = define_rx.match(line)
449        if m:
450            n, v = m.group(1, 2)
451            try: v = int(v)
452            except ValueError: pass
453            vars[n] = v
454        else:
455            m = undef_rx.match(line)
456            if m:
457                vars[m.group(1)] = 0
458    return vars
459
460def get_config_h_filename():
461    """Returns the path of pyconfig.h."""
462    if _PYTHON_BUILD:
463        if os.name == "nt":
464            inc_dir = os.path.join(_PROJECT_BASE, "PC")
465        else:
466            inc_dir = _PROJECT_BASE
467    else:
468        inc_dir = get_path('platinclude').replace("/usr/local","/usr",1)+(sys.pydebug and "_d" or "")
469    return os.path.join(inc_dir, 'pyconfig.h')
470
471def get_scheme_names():
472    """Returns a tuple containing the schemes names."""
473    schemes = _INSTALL_SCHEMES.keys()
474    schemes.sort()
475    return tuple(schemes)
476
477def get_path_names():
478    """Returns a tuple containing the paths names."""
479    return _SCHEME_KEYS
480
481def get_paths(scheme=_get_default_scheme(), vars=None, expand=True):
482    """Returns a mapping containing an install scheme.
483
484    ``scheme`` is the install scheme name. If not provided, it will
485    return the default scheme for the current platform.
486    """
487    if expand:
488        return _expand_vars(scheme, vars)
489    else:
490        return _INSTALL_SCHEMES[scheme]
491
492def get_path(name, scheme=_get_default_scheme(), vars=None, expand=True):
493    """Returns a path corresponding to the scheme.
494
495    ``scheme`` is the install scheme name.
496    """
497    return get_paths(scheme, vars, expand)[name]
498
499def get_config_vars(*args):
500    """With no arguments, return a dictionary of all configuration
501    variables relevant for the current platform.
502
503    On Unix, this means every variable defined in Python's installed Makefile;
504    On Windows and Mac OS it's a much smaller set.
505
506    With arguments, return a list of values that result from looking up
507    each argument in the configuration variable dictionary.
508    """
509    import re
510    global _CONFIG_VARS
511    if _CONFIG_VARS is None:
512        _CONFIG_VARS = {}
513        # Normalized versions of prefix and exec_prefix are handy to have;
514        # in fact, these are the standard versions used most places in the
515        # Distutils.
516        _CONFIG_VARS['prefix'] = _PREFIX
517        _CONFIG_VARS['exec_prefix'] = _EXEC_PREFIX
518        _CONFIG_VARS['py_version'] = _PY_VERSION
519        _CONFIG_VARS['py_version_short'] = _PY_VERSION_SHORT
520        _CONFIG_VARS['py_version_nodot'] = _PY_VERSION[0] + _PY_VERSION[2]
521        _CONFIG_VARS['base'] = _PREFIX
522        _CONFIG_VARS['platbase'] = _EXEC_PREFIX
523        _CONFIG_VARS['projectbase'] = _PROJECT_BASE
524
525        if os.name in ('nt', 'os2'):
526            _init_non_posix(_CONFIG_VARS)
527        if os.name == 'posix':
528            _init_posix(_CONFIG_VARS)
529
530        # Setting 'userbase' is done below the call to the
531        # init function to enable using 'get_config_var' in
532        # the init-function.
533        _CONFIG_VARS['userbase'] = _getuserbase()
534
535        multiarch = get_config_var('MULTIARCH')
536        if multiarch:
537            _CONFIG_VARS['multiarchsubdir'] = '/' + multiarch
538        else:
539            _CONFIG_VARS['multiarchsubdir'] = ''
540
541        if 'srcdir' not in _CONFIG_VARS:
542            _CONFIG_VARS['srcdir'] = _PROJECT_BASE
543
544        # Convert srcdir into an absolute path if it appears necessary.
545        # Normally it is relative to the build directory.  However, during
546        # testing, for example, we might be running a non-installed python
547        # from a different directory.
548        if _PYTHON_BUILD and os.name == "posix":
549            base = _PROJECT_BASE
550            try:
551                cwd = os.getcwd()
552            except OSError:
553                cwd = None
554            if (not os.path.isabs(_CONFIG_VARS['srcdir']) and
555                base != cwd):
556                # srcdir is relative and we are not in the same directory
557                # as the executable. Assume executable is in the build
558                # directory and make srcdir absolute.
559                srcdir = os.path.join(base, _CONFIG_VARS['srcdir'])
560                _CONFIG_VARS['srcdir'] = os.path.normpath(srcdir)
561
562        # OS X platforms require special customization to handle
563        # multi-architecture, multi-os-version installers
564        if sys.platform == 'darwin':
565            import _osx_support
566            _osx_support.customize_config_vars(_CONFIG_VARS)
567
568    if args:
569        vals = []
570        for name in args:
571            vals.append(_CONFIG_VARS.get(name))
572        return vals
573    else:
574        return _CONFIG_VARS
575
576def get_config_var(name):
577    """Return the value of a single variable using the dictionary returned by
578    'get_config_vars()'.
579
580    Equivalent to get_config_vars().get(name)
581    """
582    return get_config_vars().get(name)
583
584def get_platform():
585    """Return a string that identifies the current platform.
586
587    This is used mainly to distinguish platform-specific build directories and
588    platform-specific built distributions.  Typically includes the OS name
589    and version and the architecture (as supplied by 'os.uname()'),
590    although the exact information included depends on the OS; eg. for IRIX
591    the architecture isn't particularly important (IRIX only runs on SGI
592    hardware), but for Linux the kernel version isn't particularly
593    important.
594
595    Examples of returned values:
596       linux-i586
597       linux-alpha (?)
598       solaris-2.6-sun4u
599       irix-5.3
600       irix64-6.2
601
602    Windows will return one of:
603       win-amd64 (64bit Windows on AMD64 (aka x86_64, Intel64, EM64T, etc)
604       win-ia64 (64bit Windows on Itanium)
605       win32 (all others - specifically, sys.platform is returned)
606
607    For other non-POSIX platforms, currently just returns 'sys.platform'.
608    """
609    import re
610    if os.name == 'nt':
611        # sniff sys.version for architecture.
612        prefix = " bit ("
613        i = sys.version.find(prefix)
614        if i == -1:
615            return sys.platform
616        j = sys.version.find(")", i)
617        look = sys.version[i+len(prefix):j].lower()
618        if look == 'amd64':
619            return 'win-amd64'
620        if look == 'itanium':
621            return 'win-ia64'
622        return sys.platform
623
624    # Set for cross builds explicitly
625    if "_PYTHON_HOST_PLATFORM" in os.environ:
626        return os.environ["_PYTHON_HOST_PLATFORM"]
627
628    if os.name != "posix" or not hasattr(os, 'uname'):
629        # XXX what about the architecture? NT is Intel or Alpha,
630        # Mac OS is M68k or PPC, etc.
631        return sys.platform
632
633    # Try to distinguish various flavours of Unix
634    osname, host, release, version, machine = os.uname()
635
636    # Convert the OS name to lowercase, remove '/' characters
637    # (to accommodate BSD/OS), and translate spaces (for "Power Macintosh")
638    osname = osname.lower().replace('/', '')
639    machine = machine.replace(' ', '_')
640    machine = machine.replace('/', '-')
641
642    if osname[:5] == "linux":
643        # At least on Linux/Intel, 'machine' is the processor --
644        # i386, etc.
645        # XXX what about Alpha, SPARC, etc?
646        return  "%s-%s" % (osname, machine)
647    elif osname[:5] == "sunos":
648        if release[0] >= "5":           # SunOS 5 == Solaris 2
649            osname = "solaris"
650            release = "%d.%s" % (int(release[0]) - 3, release[2:])
651            # We can't use "platform.architecture()[0]" because a
652            # bootstrap problem. We use a dict to get an error
653            # if some suspicious happens.
654            bitness = {2147483647:"32bit", 9223372036854775807:"64bit"}
655            machine += ".%s" % bitness[sys.maxint]
656        # fall through to standard osname-release-machine representation
657    elif osname[:4] == "irix":              # could be "irix64"!
658        return "%s-%s" % (osname, release)
659    elif osname[:3] == "aix":
660        return "%s-%s.%s" % (osname, version, release)
661    elif osname[:6] == "cygwin":
662        osname = "cygwin"
663        rel_re = re.compile (r'[\d.]+')
664        m = rel_re.match(release)
665        if m:
666            release = m.group()
667    elif osname[:6] == "darwin":
668        import _osx_support
669        osname, release, machine = _osx_support.get_platform_osx(
670                                            get_config_vars(),
671                                            osname, release, machine)
672
673    return "%s-%s-%s" % (osname, release, machine)
674
675
676def get_python_version():
677    return _PY_VERSION_SHORT
678
679
680def _print_dict(title, data):
681    for index, (key, value) in enumerate(sorted(data.items())):
682        if index == 0:
683            print '%s: ' % (title)
684        print '\t%s = "%s"' % (key, value)
685
686
687def _main():
688    """Display all information sysconfig detains."""
689    if '--generate-posix-vars' in sys.argv:
690        _generate_posix_vars()
691        return
692    print 'Platform: "%s"' % get_platform()
693    print 'Python version: "%s"' % get_python_version()
694    print 'Current installation scheme: "%s"' % _get_default_scheme()
695    print
696    _print_dict('Paths', get_paths())
697    print
698    _print_dict('Variables', get_config_vars())
699
700
701if __name__ == '__main__':
702    _main()
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