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sysconfig.pyc
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# Source Generated with Decompyle++
# File: in.pyc (Python 2.7)
"""Provide access to Python's configuration information.
"""
import sys
import os
from os.path import pardir, realpath
_INSTALL_SCHEMES = {
'posix_prefix': {
'stdlib': '{base}/lib/python{py_version_short}',
'platstdlib': '{platbase}/lib/python{py_version_short}',
'purelib': '{base}/lib/python{py_version_short}/site-packages',
'platlib': '{platbase}/lib/python{py_version_short}/site-packages',
'include': '{base}/include/python{py_version_short}',
'platinclude': '{platbase}/include/python{py_version_short}',
'scripts': '{base}/bin',
'data': '{base}' },
'posix_home': {
'stdlib': '{base}/lib/python',
'platstdlib': '{base}/lib/python',
'purelib': '{base}/lib/python',
'platlib': '{base}/lib/python',
'include': '{base}/include/python',
'platinclude': '{base}/include/python',
'scripts': '{base}/bin',
'data': '{base}' },
'nt': {
'stdlib': '{base}/Lib',
'platstdlib': '{base}/Lib',
'purelib': '{base}/Lib/site-packages',
'platlib': '{base}/Lib/site-packages',
'include': '{base}/Include',
'platinclude': '{base}/Include',
'scripts': '{base}/Scripts',
'data': '{base}' },
'os2': {
'stdlib': '{base}/Lib',
'platstdlib': '{base}/Lib',
'purelib': '{base}/Lib/site-packages',
'platlib': '{base}/Lib/site-packages',
'include': '{base}/Include',
'platinclude': '{base}/Include',
'scripts': '{base}/Scripts',
'data': '{base}' },
'os2_home': {
'stdlib': '{userbase}/lib/python{py_version_short}',
'platstdlib': '{userbase}/lib/python{py_version_short}',
'purelib': '{userbase}/lib/python{py_version_short}/site-packages',
'platlib': '{userbase}/lib/python{py_version_short}/site-packages',
'include': '{userbase}/include/python{py_version_short}',
'scripts': '{userbase}/bin',
'data': '{userbase}' },
'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}/Scripts',
'data': '{userbase}' },
'posix_user': {
'stdlib': '{userbase}/lib/python{py_version_short}',
'platstdlib': '{userbase}/lib/python{py_version_short}',
'purelib': '{userbase}/lib/python{py_version_short}/site-packages',
'platlib': '{userbase}/lib/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')
_PY_VERSION = sys.version.split()[0]
_PY_VERSION_SHORT = sys.version[:3]
_PY_VERSION_SHORT_NO_DOT = _PY_VERSION[0] + _PY_VERSION[2]
_PREFIX = os.path.normpath(sys.prefix)
_EXEC_PREFIX = os.path.normpath(sys.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:
_PROJECT_BASE = _safe_realpath(os.getcwd())
if os.name == 'nt' and 'pcbuild' in _PROJECT_BASE[-8:].lower():
_PROJECT_BASE = _safe_realpath(os.path.join(_PROJECT_BASE, pardir))
if os.name == 'nt' and '\\pc\\v' in _PROJECT_BASE[-10:].lower():
_PROJECT_BASE = _safe_realpath(os.path.join(_PROJECT_BASE, pardir, pardir))
if os.name == 'nt' and '\\pcbuild\\amd64' in _PROJECT_BASE[-14:].lower():
_PROJECT_BASE = _safe_realpath(os.path.join(_PROJECT_BASE, pardir, pardir))
if '_PYTHON_PROJECT_BASE' in os.environ:
_PROJECT_BASE = os.path.normpath(os.path.abspath('.'))
def is_python_build():
for fn in ('Setup.dist', 'Setup.local'):
if os.path.isfile(os.path.join(_PROJECT_BASE, 'Modules', fn)):
return True
return False
_PYTHON_BUILD = is_python_build()
if _PYTHON_BUILD:
for scheme in ('posix_prefix', 'posix_home'):
_INSTALL_SCHEMES[scheme]['include'] = '{projectbase}/Include'
_INSTALL_SCHEMES[scheme]['platinclude'] = '{srcdir}'
def _subst_vars(s, local_vars):
try:
return s.format(**local_vars)
except KeyError:
try:
return s.format(**os.environ)
except KeyError:
var = None
raise AttributeError('{%s}' % var)
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':
return 'posix_prefix'
return None.name
def _getuserbase():
env_base = os.environ.get('PYTHONUSERBASE', None)
def joinuser(*args):
return os.path.expanduser(os.path.join(*args))
if os.name == 'nt':
if not os.environ.get('APPDATA'):
pass
base = '~'
if env_base:
return env_base
return None(base, 'Python')
if None.platform == 'darwin':
framework = get_config_var('PYTHONFRAMEWORK')
if framework:
if env_base:
return env_base
return None('~', 'Library', framework, '%d.%d' % sys.version_info[:2])
if env_base:
return env_base
return None('~', '.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.
'''
import re as re
_variable_rx = re.compile('([a-zA-Z][a-zA-Z0-9_]+)\\s*=\\s*(.*)')
_findvar1_rx = re.compile('\\$\\(([A-Za-z][A-Za-z0-9_]*)\\)')
_findvar2_rx = re.compile('\\${([A-Za-z][A-Za-z0-9_]*)}')
if vars is None:
vars = { }
done = { }
notdone = { }
with open(filename) 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()
tmpv = v.replace('$$', '')
if '$' in tmpv:
notdone[n] = v
else:
try:
v = int(v)
except ValueError:
done[n] = v.replace('$$', '$')
done[n] = v
while notdone:
for name in notdone.keys():
value = notdone[name]
if not _findvar1_rx.search(value):
pass
m = _findvar2_rx.search(value)
if m:
n = m.group(1)
found = True
if n in done:
item = str(done[n])
elif n in notdone:
found = False
elif n in os.environ:
item = os.environ[n]
else:
done[n] = item = ''
if found:
after = value[m.end():]
value = value[:m.start()] + item + after
if '$' in after:
notdone[name] = value
else:
try:
value = int(value)
except ValueError:
done[name] = value.strip()
done[name] = value
del notdone[name]
del notdone[name]
for k, v in done.items():
if isinstance(v, str):
done[k] = v.strip()
continue
vars.update(done)
return vars
def _get_makefile_filename():
if _PYTHON_BUILD:
return os.path.join(_PROJECT_BASE, 'Makefile')
return None.path.join(get_path('platstdlib'), 'config', 'Makefile')
def _generate_posix_vars():
'''Generate the Python module containing build-time variables.'''
import pprint as pprint
vars = { }
makefile = _get_makefile_filename()
try:
_parse_makefile(makefile, vars)
except IOError:
e = None
msg = 'invalid Python installation: unable to open %s' % makefile
if hasattr(e, 'strerror'):
msg = msg + ' (%s)' % e.strerror
raise IOError(msg)
config_h = get_config_h_filename()
try:
with open(config_h) as f:
parse_config_h(f, vars)
except IOError:
e = None
msg = 'invalid Python installation: unable to open %s' % config_h
if hasattr(e, 'strerror'):
msg = msg + ' (%s)' % e.strerror
raise IOError(msg)
if _PYTHON_BUILD:
vars['LDSHARED'] = vars['BLDSHARED']
name = '_sysconfigdata'
if 'darwin' in sys.platform:
import imp as imp
module = imp.new_module(name)
module.build_time_vars = vars
sys.modules[name] = module
pybuilddir = 'build/lib.%s-%s' % (get_platform(), sys.version[:3])
if hasattr(sys, 'gettotalrefcount'):
pybuilddir += '-pydebug'
try:
os.makedirs(pybuilddir)
except OSError:
pass
destfile = os.path.join(pybuilddir, name + '.py')
with open(destfile, 'wb') as f:
f.write('# system configuration generated and used by the sysconfig module\n')
f.write('build_time_vars = ')
pprint.pprint(vars, stream = f)
with open('pybuilddir.txt', 'w') as f:
f.write(pybuilddir)
def _init_posix(vars):
'''Initialize the module as appropriate for POSIX systems.'''
build_time_vars = build_time_vars
import _sysconfigdata
vars.update(build_time_vars)
def _init_non_posix(vars):
'''Initialize the module as appropriate for NT'''
vars['LIBDEST'] = get_path('stdlib')
vars['BINLIBDEST'] = get_path('platstdlib')
vars['INCLUDEPY'] = get_path('include')
vars['SO'] = '.pyd'
vars['EXE'] = '.exe'
vars['VERSION'] = _PY_VERSION_SHORT_NO_DOT
vars['BINDIR'] = os.path.dirname(_safe_realpath(sys.executable))
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.
'''
import re
if vars is None:
vars = { }
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
vars[n] = v
continue
m = undef_rx.match(line)
if m:
vars[m.group(1)] = 0
continue
return vars
def get_config_h_filename():
'''Returns the path of pyconfig.h.'''
if _PYTHON_BUILD:
if os.name == 'nt':
inc_dir = os.path.join(_PROJECT_BASE, 'PC')
else:
inc_dir = _PROJECT_BASE
else:
inc_dir = get_path('platinclude')
return os.path.join(inc_dir, 'pyconfig.h')
def get_scheme_names():
'''Returns a tuple containing the schemes names.'''
schemes = _INSTALL_SCHEMES.keys()
schemes.sort()
return tuple(schemes)
def get_path_names():
'''Returns a tuple containing the paths names.'''
return _SCHEME_KEYS
def get_paths(scheme = _get_default_scheme(), vars = None, expand = True):
'''Returns 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)
return None[scheme]
def get_path(name, scheme = _get_default_scheme(), vars = None, expand = True):
'''Returns 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 and Mac OS 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
import re
if _CONFIG_VARS is None:
_CONFIG_VARS = { }
_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[0] + _PY_VERSION[2]
_CONFIG_VARS['base'] = _PREFIX
_CONFIG_VARS['platbase'] = _EXEC_PREFIX
_CONFIG_VARS['projectbase'] = _PROJECT_BASE
if os.name in ('nt', 'os2'):
_init_non_posix(_CONFIG_VARS)
if os.name == 'posix':
_init_posix(_CONFIG_VARS)
_CONFIG_VARS['userbase'] = _getuserbase()
if 'srcdir' not in _CONFIG_VARS:
_CONFIG_VARS['srcdir'] = _PROJECT_BASE
if _PYTHON_BUILD and os.name == 'posix':
base = _PROJECT_BASE
try:
cwd = os.getcwd()
except OSError:
cwd = None
if not os.path.isabs(_CONFIG_VARS['srcdir']) and base != cwd:
srcdir = os.path.join(base, _CONFIG_VARS['srcdir'])
_CONFIG_VARS['srcdir'] = os.path.normpath(srcdir)
if sys.platform == 'darwin':
import _osx_support as _osx_support
_osx_support.customize_config_vars(_CONFIG_VARS)
if args:
vals = []
for name in args:
vals.append(_CONFIG_VARS.get(name))
return vals
return None
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)
"""
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; eg. for IRIX
the architecture isn't particularly important (IRIX only runs on SGI
hardware), but for Linux the kernel version isn't particularly
important.
Examples of returned values:
linux-i586
linux-alpha (?)
solaris-2.6-sun4u
irix-5.3
irix64-6.2
Windows will return one of:
win-amd64 (64bit Windows on AMD64 (aka x86_64, Intel64, EM64T, etc)
win-ia64 (64bit Windows on Itanium)
win32 (all others - specifically, sys.platform is returned)
For other non-POSIX platforms, currently just returns 'sys.platform'.
"""
import re
if os.name == 'nt':
prefix = ' bit ('
i = sys.version.find(prefix)
if i == -1:
return sys.platform
j = None.version.find(')', i)
look = sys.version[i + len(prefix):j].lower()
if look == 'amd64':
return 'win-amd64'
if None == 'itanium':
return 'win-ia64'
return None.platform
if None in os.environ:
return os.environ['_PYTHON_HOST_PLATFORM']
if None.name != 'posix' or not hasattr(os, 'uname'):
return sys.platform
(osname, host, release, version, machine) = None.uname()
osname = osname.lower().replace('/', '')
machine = machine.replace(' ', '_')
machine = machine.replace('/', '-')
if osname[:5] == 'linux':
return '%s-%s' % (osname, machine)
if None[:5] == 'sunos' or release[0] >= '5':
osname = 'solaris'
release = '%d.%s' % (int(release[0]) - 3, release[2:])
bitness = {
2147483647: '32bit',
0x7FFFFFFFFFFFFFFFL: '64bit' }
machine += '.%s' % bitness[sys.maxint]
if osname[:4] == 'irix':
return '%s-%s' % (osname, release)
if None[:3] == 'aix':
return '%s-%s.%s' % (osname, version, release)
if None[:6] == 'cygwin':
osname = 'cygwin'
rel_re = re.compile('[\\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 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 None
print None % 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()