1 """Access to Python's configuration information.""" 2 3 import os 4 import sys 5 from os.path import pardir, realpath 6 7 __all__ = [ 8 'get_config_h_filename', 9 'get_config_var', 10 'get_config_vars', 11 'get_makefile_filename', 12 'get_path', 13 'get_path_names', 14 'get_paths', 15 'get_platform', 16 'get_python_version', 17 'get_scheme_names', 18 'parse_config_h', 19 ] 20 21 _INSTALL_SCHEMES = { 22 'posix_prefix': { 23 'stdlib': '{installed_base}/lib/python{py_version_short}', 24 'platstdlib': '{platbase}/lib/python{py_version_short}', 25 'purelib': '{base}/lib/python{py_version_short}/site-packages', 26 'platlib': '{platbase}/lib/python{py_version_short}/site-packages', 27 'include': 28 '{installed_base}/include/python{py_version_short}{abiflags}', 29 'platinclude': 30 '{installed_platbase}/include/python{py_version_short}{abiflags}', 31 'scripts': '{base}/bin', 32 'data': '{base}', 33 }, 34 'posix_home': { 35 'stdlib': '{installed_base}/lib/python', 36 'platstdlib': '{base}/lib/python', 37 'purelib': '{base}/lib/python', 38 'platlib': '{base}/lib/python', 39 'include': '{installed_base}/include/python', 40 'platinclude': '{installed_base}/include/python', 41 'scripts': '{base}/bin', 42 'data': '{base}', 43 }, 44 'nt': { 45 'stdlib': '{installed_base}/Lib', 46 'platstdlib': '{base}/Lib', 47 'purelib': '{base}/Lib/site-packages', 48 'platlib': '{base}/Lib/site-packages', 49 'include': '{installed_base}/Include', 50 'platinclude': '{installed_base}/Include', 51 'scripts': '{base}/Scripts', 52 'data': '{base}', 53 }, 54 # NOTE: When modifying "purelib" scheme, update site._get_path() too. 55 'nt_user': { 56 'stdlib': '{userbase}/Python{py_version_nodot}', 57 'platstdlib': '{userbase}/Python{py_version_nodot}', 58 'purelib': '{userbase}/Python{py_version_nodot}/site-packages', 59 'platlib': '{userbase}/Python{py_version_nodot}/site-packages', 60 'include': '{userbase}/Python{py_version_nodot}/Include', 61 'scripts': '{userbase}/Python{py_version_nodot}/Scripts', 62 'data': '{userbase}', 63 }, 64 'posix_user': { 65 'stdlib': '{userbase}/lib/python{py_version_short}', 66 'platstdlib': '{userbase}/lib/python{py_version_short}', 67 'purelib': '{userbase}/lib/python{py_version_short}/site-packages', 68 'platlib': '{userbase}/lib/python{py_version_short}/site-packages', 69 'include': '{userbase}/include/python{py_version_short}', 70 'scripts': '{userbase}/bin', 71 'data': '{userbase}', 72 }, 73 'osx_framework_user': { 74 'stdlib': '{userbase}/lib/python', 75 'platstdlib': '{userbase}/lib/python', 76 'purelib': '{userbase}/lib/python/site-packages', 77 'platlib': '{userbase}/lib/python/site-packages', 78 'include': '{userbase}/include', 79 'scripts': '{userbase}/bin', 80 'data': '{userbase}', 81 }, 82 } 83 84 _SCHEME_KEYS = ('stdlib', 'platstdlib', 'purelib', 'platlib', 'include', 85 'scripts', 'data') 86 87 # FIXME don't rely on sys.version here, its format is an implementation detail 88 # of CPython, use sys.version_info or sys.hexversion 89 _PY_VERSION = sys.version.split()[0] 90 _PY_VERSION_SHORT = '%d.%d' % sys.version_info[:2] 91 _PY_VERSION_SHORT_NO_DOT = '%d%d' % sys.version_info[:2] 92 _PREFIX = os.path.normpath(sys.prefix) 93 _BASE_PREFIX = os.path.normpath(sys.base_prefix) 94 _EXEC_PREFIX = os.path.normpath(sys.exec_prefix) 95 _BASE_EXEC_PREFIX = os.path.normpath(sys.base_exec_prefix) 96 _CONFIG_VARS = None 97 _USER_BASE = None 98 99 100 def _safe_realpath(path): 101 try: 102 return realpath(path) 103 except OSError: 104 return path 105 106 if sys.executable: 107 _PROJECT_BASE = os.path.dirname(_safe_realpath(sys.executable)) 108 else: 109 # sys.executable can be empty if argv[0] has been changed and Python is 110 # unable to retrieve the real program name 111 _PROJECT_BASE = _safe_realpath(os.getcwd()) 112 113 if (os.name == 'nt' and 114 _PROJECT_BASE.lower().endswith(('\\pcbuild\\win32', '\\pcbuild\\amd64'))): 115 _PROJECT_BASE = _safe_realpath(os.path.join(_PROJECT_BASE, pardir, pardir)) 116 117 # set for cross builds 118 if "_PYTHON_PROJECT_BASE" in os.environ: 119 _PROJECT_BASE = _safe_realpath(os.environ["_PYTHON_PROJECT_BASE"]) 120 121 def _is_python_source_dir(d): 122 for fn in ("Setup.dist", "Setup.local"): 123 if os.path.isfile(os.path.join(d, "Modules", fn)): 124 return True 125 return False 126 127 _sys_home = getattr(sys, '_home', None) 128 129 if os.name == 'nt': 130 def _fix_pcbuild(d): 131 if d and os.path.normcase(d).startswith( 132 os.path.normcase(os.path.join(_PREFIX, "PCbuild"))): 133 return _PREFIX 134 return d 135 _PROJECT_BASE = _fix_pcbuild(_PROJECT_BASE) 136 _sys_home = _fix_pcbuild(_sys_home) 137 138 def is_python_build(check_home=False): 139 if check_home and _sys_home: 140 return _is_python_source_dir(_sys_home) 141 return _is_python_source_dir(_PROJECT_BASE) 142 143 _PYTHON_BUILD = is_python_build(True) 144 145 if _PYTHON_BUILD: 146 for scheme in ('posix_prefix', 'posix_home'): 147 _INSTALL_SCHEMES[scheme]['include'] = '{srcdir}/Include' 148 _INSTALL_SCHEMES[scheme]['platinclude'] = '{projectbase}/.' 149 150 151 def _subst_vars(s, local_vars): 152 try: 153 return s.format(**local_vars) 154 except KeyError: 155 try: 156 return s.format(**os.environ) 157 except KeyError as var: 158 raise AttributeError('{%s}' % var) from None 159 160 def _extend_dict(target_dict, other_dict): 161 target_keys = target_dict.keys() 162 for key, value in other_dict.items(): 163 if key in target_keys: 164 continue 165 target_dict[key] = value 166 167 168 def _expand_vars(scheme, vars): 169 res = {} 170 if vars is None: 171 vars = {} 172 _extend_dict(vars, get_config_vars()) 173 174 for key, value in _INSTALL_SCHEMES[scheme].items(): 175 if os.name in ('posix', 'nt'): 176 value = os.path.expanduser(value) 177 res[key] = os.path.normpath(_subst_vars(value, vars)) 178 return res 179 180 181 def _get_default_scheme(): 182 if os.name == 'posix': 183 # the default scheme for posix is posix_prefix 184 return 'posix_prefix' 185 return os.name 186 187 188 # NOTE: site.py has copy of this function. 189 # Sync it when modify this function. 190 def _getuserbase(): 191 env_base = os.environ.get("PYTHONUSERBASE", None) 192 if env_base: 193 return env_base 194 195 def joinuser(*args): 196 return os.path.expanduser(os.path.join(*args)) 197 198 if os.name == "nt": 199 base = os.environ.get("APPDATA") or "~" 200 return joinuser(base, "Python") 201 202 if sys.platform == "darwin" and sys._framework: 203 return joinuser("~", "Library", sys._framework, 204 "%d.%d" % sys.version_info[:2]) 205 206 return joinuser("~", ".local") 207 208 209 def _parse_makefile(filename, vars=None): 210 """Parse a Makefile-style file. 211 212 A dictionary containing name/value pairs is returned. If an 213 optional dictionary is passed in as the second argument, it is 214 used instead of a new dictionary. 215 """ 216 # Regexes needed for parsing Makefile (and similar syntaxes, 217 # like old-style Setup files). 218 import re 219 _variable_rx = re.compile(r"([a-zA-Z][a-zA-Z0-9_]+)\s*=\s*(.*)") 220 _findvar1_rx = re.compile(r"\$\(([A-Za-z][A-Za-z0-9_]*)\)") 221 _findvar2_rx = re.compile(r"\${([A-Za-z][A-Za-z0-9_]*)}") 222 223 if vars is None: 224 vars = {} 225 done = {} 226 notdone = {} 227 228 with open(filename, errors="surrogateescape") as f: 229 lines = f.readlines() 230 231 for line in lines: 232 if line.startswith('#') or line.strip() == '': 233 continue 234 m = _variable_rx.match(line) 235 if m: 236 n, v = m.group(1, 2) 237 v = v.strip() 238 # `$$' is a literal `$' in make 239 tmpv = v.replace('$$', '') 240 241 if "$" in tmpv: 242 notdone[n] = v 243 else: 244 try: 245 v = int(v) 246 except ValueError: 247 # insert literal `$' 248 done[n] = v.replace('$$', '$') 249 else: 250 done[n] = v 251 252 # do variable interpolation here 253 variables = list(notdone.keys()) 254 255 # Variables with a 'PY_' prefix in the makefile. These need to 256 # be made available without that prefix through sysconfig. 257 # Special care is needed to ensure that variable expansion works, even 258 # if the expansion uses the name without a prefix. 259 renamed_variables = ('CFLAGS', 'LDFLAGS', 'CPPFLAGS') 260 261 while len(variables) > 0: 262 for name in tuple(variables): 263 value = notdone[name] 264 m1 = _findvar1_rx.search(value) 265 m2 = _findvar2_rx.search(value) 266 if m1 and m2: 267 m = m1 if m1.start() < m2.start() else m2 268 else: 269 m = m1 if m1 else m2 270 if m is not None: 271 n = m.group(1) 272 found = True 273 if n in done: 274 item = str(done[n]) 275 elif n in notdone: 276 # get it on a subsequent round 277 found = False 278 elif n in os.environ: 279 # do it like make: fall back to environment 280 item = os.environ[n] 281 282 elif n in renamed_variables: 283 if (name.startswith('PY_') and 284 name[3:] in renamed_variables): 285 item = "" 286 287 elif 'PY_' + n in notdone: 288 found = False 289 290 else: 291 item = str(done['PY_' + n]) 292 293 else: 294 done[n] = item = "" 295 296 if found: 297 after = value[m.end():] 298 value = value[:m.start()] + item + after 299 if "$" in after: 300 notdone[name] = value 301 else: 302 try: 303 value = int(value) 304 except ValueError: 305 done[name] = value.strip() 306 else: 307 done[name] = value 308 variables.remove(name) 309 310 if name.startswith('PY_') \ 311 and name[3:] in renamed_variables: 312 313 name = name[3:] 314 if name not in done: 315 done[name] = value 316 317 else: 318 # bogus variable reference (e.g. "prefix=$/opt/python"); 319 # just drop it since we can't deal 320 done[name] = value 321 variables.remove(name) 322 323 # strip spurious spaces 324 for k, v in done.items(): 325 if isinstance(v, str): 326 done[k] = v.strip() 327 328 # save the results in the global dictionary 329 vars.update(done) 330 return vars 331 332 333 def get_makefile_filename(): 334 """Return the path of the Makefile.""" 335 if _PYTHON_BUILD: 336 return os.path.join(_sys_home or _PROJECT_BASE, "Makefile") 337 if hasattr(sys, 'abiflags'): 338 config_dir_name = 'config-%s%s' % (_PY_VERSION_SHORT, sys.abiflags) 339 else: 340 config_dir_name = 'config' 341 if hasattr(sys.implementation, '_multiarch'): 342 config_dir_name += '-%s' % sys.implementation._multiarch 343 return os.path.join(get_path('stdlib'), config_dir_name, 'Makefile') 344 345 346 def _get_sysconfigdata_name(): 347 return os.environ.get('_PYTHON_SYSCONFIGDATA_NAME', 348 '_sysconfigdata_{abi}_{platform}_{multiarch}'.format( 349 abi=sys.abiflags, 350 platform=sys.platform, 351 multiarch=getattr(sys.implementation, '_multiarch', ''), 352 )) 353 354 355 def _generate_posix_vars(): 356 """Generate the Python module containing build-time variables.""" 357 import pprint 358 vars = {} 359 # load the installed Makefile: 360 makefile = get_makefile_filename() 361 try: 362 _parse_makefile(makefile, vars) 363 except OSError as e: 364 msg = "invalid Python installation: unable to open %s" % makefile 365 if hasattr(e, "strerror"): 366 msg = msg + " (%s)" % e.strerror 367 raise OSError(msg) 368 # load the installed pyconfig.h: 369 config_h = get_config_h_filename() 370 try: 371 with open(config_h) as f: 372 parse_config_h(f, vars) 373 except OSError as e: 374 msg = "invalid Python installation: unable to open %s" % config_h 375 if hasattr(e, "strerror"): 376 msg = msg + " (%s)" % e.strerror 377 raise OSError(msg) 378 # On AIX, there are wrong paths to the linker scripts in the Makefile 379 # -- these paths are relative to the Python source, but when installed 380 # the scripts are in another directory. 381 if _PYTHON_BUILD: 382 vars['BLDSHARED'] = vars['LDSHARED'] 383 384 # There's a chicken-and-egg situation on OS X with regards to the 385 # _sysconfigdata module after the changes introduced by #15298: 386 # get_config_vars() is called by get_platform() as part of the 387 # `make pybuilddir.txt` target -- which is a precursor to the 388 # _sysconfigdata.py module being constructed. Unfortunately, 389 # get_config_vars() eventually calls _init_posix(), which attempts 390 # to import _sysconfigdata, which we won't have built yet. In order 391 # for _init_posix() to work, if we're on Darwin, just mock up the 392 # _sysconfigdata module manually and populate it with the build vars. 393 # This is more than sufficient for ensuring the subsequent call to 394 # get_platform() succeeds. 395 name = _get_sysconfigdata_name() 396 if 'darwin' in sys.platform: 397 import types 398 module = types.ModuleType(name) 399 module.build_time_vars = vars 400 sys.modules[name] = module 401 402 pybuilddir = 'build/lib.%s-%s' % (get_platform(), _PY_VERSION_SHORT) 403 if hasattr(sys, "gettotalrefcount"): 404 pybuilddir += '-pydebug' 405 os.makedirs(pybuilddir, exist_ok=True) 406 destfile = os.path.join(pybuilddir, name + '.py') 407 408 with open(destfile, 'w', encoding='utf8') as f: 409 f.write('# system configuration generated and used by' 410 ' the sysconfig module\n') 411 f.write('build_time_vars = ') 412 pprint.pprint(vars, stream=f) 413 414 # Create file used for sys.path fixup -- see Modules/getpath.c 415 with open('pybuilddir.txt', 'w', encoding='ascii') as f: 416 f.write(pybuilddir) 417 418 def _init_posix(vars): 419 """Initialize the module as appropriate for POSIX systems.""" 420 # _sysconfigdata is generated at build time, see _generate_posix_vars() 421 name = _get_sysconfigdata_name() 422 _temp = __import__(name, globals(), locals(), ['build_time_vars'], 0) 423 build_time_vars = _temp.build_time_vars 424 vars.update(build_time_vars) 425 426 def _init_non_posix(vars): 427 """Initialize the module as appropriate for NT""" 428 # set basic install directories 429 vars['LIBDEST'] = get_path('stdlib') 430 vars['BINLIBDEST'] = get_path('platstdlib') 431 vars['INCLUDEPY'] = get_path('include') 432 vars['EXT_SUFFIX'] = '.pyd' 433 vars['EXE'] = '.exe' 434 vars['VERSION'] = _PY_VERSION_SHORT_NO_DOT 435 vars['BINDIR'] = os.path.dirname(_safe_realpath(sys.executable)) 436 437 # 438 # public APIs 439 # 440 441 442 def parse_config_h(fp, vars=None): 443 """Parse a config.h-style file. 444 445 A dictionary containing name/value pairs is returned. If an 446 optional dictionary is passed in as the second argument, it is 447 used instead of a new dictionary. 448 """ 449 if vars is None: 450 vars = {} 451 import re 452 define_rx = re.compile("#define ([A-Z][A-Za-z0-9_]+) (.*)\n") 453 undef_rx = re.compile("/[*] #undef ([A-Z][A-Za-z0-9_]+) [*]/\n") 454 455 while True: 456 line = fp.readline() 457 if not line: 458 break 459 m = define_rx.match(line) 460 if m: 461 n, v = m.group(1, 2) 462 try: 463 v = int(v) 464 except ValueError: 465 pass 466 vars[n] = v 467 else: 468 m = undef_rx.match(line) 469 if m: 470 vars[m.group(1)] = 0 471 return vars 472 473 474 def get_config_h_filename(): 475 """Return the path of pyconfig.h.""" 476 if _PYTHON_BUILD: 477 if os.name == "nt": 478 inc_dir = os.path.join(_sys_home or _PROJECT_BASE, "PC") 479 else: 480 inc_dir = _sys_home or _PROJECT_BASE 481 else: 482 inc_dir = get_path('platinclude') 483 return os.path.join(inc_dir, 'pyconfig.h') 484 485 486 def get_scheme_names(): 487 """Return a tuple containing the schemes names.""" 488 return tuple(sorted(_INSTALL_SCHEMES)) 489 490 491 def get_path_names(): 492 """Return a tuple containing the paths names.""" 493 return _SCHEME_KEYS 494 495 496 def get_paths(scheme=_get_default_scheme(), vars=None, expand=True): 497 """Return a mapping containing an install scheme. 498 499 ``scheme`` is the install scheme name. If not provided, it will 500 return the default scheme for the current platform. 501 """ 502 if expand: 503 return _expand_vars(scheme, vars) 504 else: 505 return _INSTALL_SCHEMES[scheme] 506 507 508 def get_path(name, scheme=_get_default_scheme(), vars=None, expand=True): 509 """Return a path corresponding to the scheme. 510 511 ``scheme`` is the install scheme name. 512 """ 513 return get_paths(scheme, vars, expand)[name] 514 515 516 def get_config_vars(*args): 517 """With no arguments, return a dictionary of all configuration 518 variables relevant for the current platform. 519 520 On Unix, this means every variable defined in Python's installed Makefile; 521 On Windows it's a much smaller set. 522 523 With arguments, return a list of values that result from looking up 524 each argument in the configuration variable dictionary. 525 """ 526 global _CONFIG_VARS 527 if _CONFIG_VARS is None: 528 _CONFIG_VARS = {} 529 # Normalized versions of prefix and exec_prefix are handy to have; 530 # in fact, these are the standard versions used most places in the 531 # Distutils. 532 _CONFIG_VARS['prefix'] = _PREFIX 533 _CONFIG_VARS['exec_prefix'] = _EXEC_PREFIX 534 _CONFIG_VARS['py_version'] = _PY_VERSION 535 _CONFIG_VARS['py_version_short'] = _PY_VERSION_SHORT 536 _CONFIG_VARS['py_version_nodot'] = _PY_VERSION_SHORT_NO_DOT 537 _CONFIG_VARS['installed_base'] = _BASE_PREFIX 538 _CONFIG_VARS['base'] = _PREFIX 539 _CONFIG_VARS['installed_platbase'] = _BASE_EXEC_PREFIX 540 _CONFIG_VARS['platbase'] = _EXEC_PREFIX 541 _CONFIG_VARS['projectbase'] = _PROJECT_BASE 542 try: 543 _CONFIG_VARS['abiflags'] = sys.abiflags 544 except AttributeError: 545 # sys.abiflags may not be defined on all platforms. 546 _CONFIG_VARS['abiflags'] = '' 547 548 if os.name == 'nt': 549 _init_non_posix(_CONFIG_VARS) 550 if os.name == 'posix': 551 _init_posix(_CONFIG_VARS) 552 # For backward compatibility, see issue19555 553 SO = _CONFIG_VARS.get('EXT_SUFFIX') 554 if SO is not None: 555 _CONFIG_VARS['SO'] = SO 556 # Setting 'userbase' is done below the call to the 557 # init function to enable using 'get_config_var' in 558 # the init-function. 559 _CONFIG_VARS['userbase'] = _getuserbase() 560 561 # Always convert srcdir to an absolute path 562 srcdir = _CONFIG_VARS.get('srcdir', _PROJECT_BASE) 563 if os.name == 'posix': 564 if _PYTHON_BUILD: 565 # If srcdir is a relative path (typically '.' or '..') 566 # then it should be interpreted relative to the directory 567 # containing Makefile. 568 base = os.path.dirname(get_makefile_filename()) 569 srcdir = os.path.join(base, srcdir) 570 else: 571 # srcdir is not meaningful since the installation is 572 # spread about the filesystem. We choose the 573 # directory containing the Makefile since we know it 574 # exists. 575 srcdir = os.path.dirname(get_makefile_filename()) 576 _CONFIG_VARS['srcdir'] = _safe_realpath(srcdir) 577 578 # OS X platforms require special customization to handle 579 # multi-architecture, multi-os-version installers 580 if sys.platform == 'darwin': 581 import _osx_support 582 _osx_support.customize_config_vars(_CONFIG_VARS) 583 584 if args: 585 vals = [] 586 for name in args: 587 vals.append(_CONFIG_VARS.get(name)) 588 return vals 589 else: 590 return _CONFIG_VARS 591 592 593 def get_config_var(name): 594 """Return the value of a single variable using the dictionary returned by 595 'get_config_vars()'. 596 597 Equivalent to get_config_vars().get(name) 598 """ 599 if name == 'SO': 600 import warnings 601 warnings.warn('SO is deprecated, use EXT_SUFFIX', DeprecationWarning, 2) 602 return get_config_vars().get(name) 603 604 605 def get_platform(): 606 """Return a string that identifies the current platform. 607 608 This is used mainly to distinguish platform-specific build directories and 609 platform-specific built distributions. Typically includes the OS name and 610 version and the architecture (as supplied by 'os.uname()'), although the 611 exact information included depends on the OS; on Linux, the kernel version 612 isn't particularly important. 613 614 Examples of returned values: 615 linux-i586 616 linux-alpha (?) 617 solaris-2.6-sun4u 618 619 Windows will return one of: 620 win-amd64 (64bit Windows on AMD64 (aka x86_64, Intel64, EM64T, etc) 621 win32 (all others - specifically, sys.platform is returned) 622 623 For other non-POSIX platforms, currently just returns 'sys.platform'. 624 625 """ 626 if os.name == 'nt': 627 if 'amd64' in sys.version.lower(): 628 return 'win-amd64' 629 return sys.platform 630 631 if os.name != "posix" or not hasattr(os, 'uname'): 632 # XXX what about the architecture? NT is Intel or Alpha 633 return sys.platform 634 635 # Set for cross builds explicitly 636 if "_PYTHON_HOST_PLATFORM" in os.environ: 637 return os.environ["_PYTHON_HOST_PLATFORM"] 638 639 # Try to distinguish various flavours of Unix 640 osname, host, release, version, machine = os.uname() 641 642 # Convert the OS name to lowercase, remove '/' characters, and translate 643 # spaces (for "Power Macintosh") 644 osname = osname.lower().replace('/', '') 645 machine = machine.replace(' ', '_') 646 machine = machine.replace('/', '-') 647 648 if osname[:5] == "linux": 649 # At least on Linux/Intel, 'machine' is the processor -- 650 # i386, etc. 651 # XXX what about Alpha, SPARC, etc? 652 return "%s-%s" % (osname, machine) 653 elif osname[:5] == "sunos": 654 if release[0] >= "5": # SunOS 5 == Solaris 2 655 osname = "solaris" 656 release = "%d.%s" % (int(release[0]) - 3, release[2:]) 657 # We can't use "platform.architecture()[0]" because a 658 # bootstrap problem. We use a dict to get an error 659 # if some suspicious happens. 660 bitness = {2147483647:"32bit", 9223372036854775807:"64bit"} 661 machine += ".%s" % bitness[sys.maxsize] 662 # fall through to standard osname-release-machine representation 663 elif osname[:3] == "aix": 664 return "%s-%s.%s" % (osname, version, release) 665 elif osname[:6] == "cygwin": 666 osname = "cygwin" 667 import re 668 rel_re = re.compile(r'[\d.]+') 669 m = rel_re.match(release) 670 if m: 671 release = m.group() 672 elif osname[:6] == "darwin": 673 import _osx_support 674 osname, release, machine = _osx_support.get_platform_osx( 675 get_config_vars(), 676 osname, release, machine) 677 678 return "%s-%s-%s" % (osname, release, machine) 679 680 681 def get_python_version(): 682 return _PY_VERSION_SHORT 683 684 685 def _print_dict(title, data): 686 for index, (key, value) in enumerate(sorted(data.items())): 687 if index == 0: 688 print('%s: ' % (title)) 689 print('\t%s = "%s"' % (key, value)) 690 691 692 def _main(): 693 """Display all information sysconfig detains.""" 694 if '--generate-posix-vars' in sys.argv: 695 _generate_posix_vars() 696 return 697 print('Platform: "%s"' % get_platform()) 698 print('Python version: "%s"' % get_python_version()) 699 print('Current installation scheme: "%s"' % _get_default_scheme()) 700 print() 701 _print_dict('Paths', get_paths()) 702 print() 703 _print_dict('Variables', get_config_vars()) 704 705 706 if __name__ == '__main__': 707 _main() 708
