Keep backported files together

4 files changed, 97 insertions, 943 deletions

diff --git a/distutils2/_backport/sysconfig.cfg b/distutils2/_backport/sysconfig.cfg
index a5d3c94..573b12e 100644
--- a/distutils2/_backport/sysconfig.cfg
+++ b/distutils2/_backport/sysconfig.cfg
@@ -1,24 +1,24 @@
 [globals]
-# These are the useful categories that are sometimes referenced at runtime,
-# using pkgutil.open():
+# These are useful categories that can be referenced at run time,
+# using packaging.database.get_file.
 # Configuration files
 config = {confdir}/{distribution.name}
 # Non-writable data that is independent of architecture (images, many xml/text files)
 appdata = {datadir}/{distribution.name}
 # Non-writable data that is architecture-dependent (some binary data formats)
 appdata.arch = {libdir}/{distribution.name}
-# Data, written by the package, that must be preserved (databases)
+# Data, written by the app/lib, that must be preserved (databases)
 appdata.persistent = {statedir}/lib/{distribution.name}
-# Data, written by the package, that can be safely discarded (cache)
+# Data, written by the app/lib, that can be safely discarded (cache)
 appdata.disposable = {statedir}/cache/{distribution.name}
-# Help or documentation files referenced at runtime
+# Help or documentation files
 help = {datadir}/{distribution.name}
 icon = {datadir}/pixmaps
 scripts = {base}/bin
 
 # Non-runtime files.  These are valid categories for marking files for
-# install, but they should not be referenced by the app at runtime:
-# Help or documentation files not referenced by the package at runtime
+# install, but they should not be referenced by the app/lib at run time.
+# Help or documentation files
 doc = {datadir}/doc/{distribution.name}
 # GNU info documentation files
 info = {datadir}/info
@@ -40,8 +40,8 @@ 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}
+include = {base}/include/python{py_version_short}{abiflags}
+platinclude = {platbase}/include/python{py_version_short}{abiflags}
 data = {base}
 
 [posix_home]
diff --git a/distutils2/_backport/sysconfig.py b/distutils2/_backport/sysconfig.py
index 7760e89..dd72e1e 100644
--- a/distutils2/_backport/sysconfig.py
+++ b/distutils2/_backport/sysconfig.py
@@ -1,12 +1,24 @@
-"""Provide access to Python's configuration information."""
+"""Access to Python's configuration information."""
+
 import os
-import sys
 import re
+import sys
 from os.path import pardir, realpath
 from ConfigParser import RawConfigParser
 
-_PREFIX = os.path.normpath(sys.prefix)
-_EXEC_PREFIX = os.path.normpath(sys.exec_prefix)
+__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',
+]
 
 # let's read the configuration file
 # XXX _CONFIG_DIR will be set by the Makefile later
@@ -49,26 +61,38 @@ def _expand_globals(config):
 
 _expand_globals(_SCHEMES)
 
+ # FIXME don't rely on sys.version here, its format is an implementatin detail
+ # of CPython, use sys.version_info or sys.hexversion
 _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(realpath(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 = realpath(os.getcwd())
+    _PROJECT_BASE = _safe_realpath(os.getcwd())
 
 if os.name == "nt" and "pcbuild" in _PROJECT_BASE[-8:].lower():
-    _PROJECT_BASE = realpath(os.path.join(_PROJECT_BASE, pardir))
+    _PROJECT_BASE = _safe_realpath(os.path.join(_PROJECT_BASE, pardir))
 # PC/VS7.1
 if os.name == "nt" and "\\pc\\v" in _PROJECT_BASE[-10:].lower():
-    _PROJECT_BASE = realpath(os.path.join(_PROJECT_BASE, pardir, pardir))
+    _PROJECT_BASE = _safe_realpath(os.path.join(_PROJECT_BASE, pardir, pardir))
 # PC/AMD64
 if os.name == "nt" and "\\pcbuild\\amd64" in _PROJECT_BASE[-14:].lower():
-    _PROJECT_BASE = realpath(os.path.join(_PROJECT_BASE, pardir, pardir))
+    _PROJECT_BASE = _safe_realpath(os.path.join(_PROJECT_BASE, pardir, pardir))
 
 
 def is_python_build():
@@ -102,8 +126,9 @@ def _subst_vars(path, local_vars):
 
 
 def _extend_dict(target_dict, other_dict):
-    for key, value in other_dict.iteritems():
-        if key in target_dict:
+    target_keys = target_dict.keys()
+    for key, value in other_dict.items():
+        if key in target_keys:
             continue
         target_dict[key] = value
 
@@ -120,14 +145,15 @@ def _expand_vars(scheme, vars):
         res[key] = os.path.normpath(_subst_vars(value, vars))
     return res
 
+
 def format_value(value, vars):
     def _replacer(matchobj):
-         name = matchobj.group(1)
-         if name in vars:
-             return vars[name]
-         return matchobj.group(0)
+        name = matchobj.group(1)
+        if name in vars:
+            return vars[name]
+        return matchobj.group(0)
     return _VAR_REPL.sub(_replacer, value)
- 
+
 
 def _get_default_scheme():
     if os.name == 'posix':
@@ -236,7 +262,8 @@ def _parse_makefile(filename, vars=None):
                     item = os.environ[n]
 
                 elif n in renamed_variables:
-                    if name.startswith('PY_') and name[3:] in renamed_variables:
+                    if (name.startswith('PY_') and
+                        name[3:] in renamed_variables):
                         item = ""
 
                     elif 'PY_' + n in notdone:
@@ -270,9 +297,16 @@ def _parse_makefile(filename, vars=None):
                                 done[name] = value
 
             else:
-                # bogus variable reference; just drop it since we can't deal
+                # 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
@@ -282,7 +316,11 @@ def get_makefile_filename():
     """Return the path of the Makefile."""
     if _PYTHON_BUILD:
         return os.path.join(_PROJECT_BASE, "Makefile")
-    return os.path.join(get_path('stdlib'), "config", "Makefile")
+    if hasattr(sys, 'abiflags'):
+        config_dir_name = 'config-%s%s' % (_PY_VERSION_SHORT, sys.abiflags)
+    else:
+        config_dir_name = 'config'
+    return os.path.join(get_path('stdlib'), config_dir_name, 'Makefile')
 
 
 def _init_posix(vars):
@@ -296,32 +334,17 @@ def _init_posix(vars):
         if hasattr(e, "strerror"):
             msg = msg + " (%s)" % e.strerror
         raise IOError(msg)
-
     # load the installed pyconfig.h:
     config_h = get_config_h_filename()
     try:
-        parse_config_h(open(config_h), vars)
+        f = open(config_h)
+        parse_config_h(f, vars)
+        f.close()
     except IOError, e:
         msg = "invalid Python installation: unable to open %s" % config_h
         if hasattr(e, "strerror"):
             msg = msg + " (%s)" % e.strerror
         raise IOError(msg)
-
-    # On MacOSX we need to check the setting of the environment variable
-    # MACOSX_DEPLOYMENT_TARGET: configure bases some choices on it so
-    # it needs to be compatible.
-    # If it isn't set we set it to the configure-time value
-    if sys.platform == 'darwin' and 'MACOSX_DEPLOYMENT_TARGET' in vars:
-        cfg_target = vars['MACOSX_DEPLOYMENT_TARGET']
-        cur_target = os.getenv('MACOSX_DEPLOYMENT_TARGET', '')
-        if cur_target == '':
-            cur_target = cfg_target
-            os.putenv('MACOSX_DEPLOYMENT_TARGET', cfg_target)
-        elif map(int, cfg_target.split('.')) > map(int, cur_target.split('.')):
-            msg = ('$MACOSX_DEPLOYMENT_TARGET mismatch: now "%s" but "%s" '
-                   'during configure' % (cur_target, cfg_target))
-            raise IOError(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.
@@ -338,7 +361,7 @@ def _init_non_posix(vars):
     vars['SO'] = '.pyd'
     vars['EXE'] = '.exe'
     vars['VERSION'] = _PY_VERSION_SHORT_NO_DOT
-    vars['BINDIR'] = os.path.dirname(realpath(sys.executable))
+    vars['BINDIR'] = os.path.dirname(_safe_realpath(sys.executable))
 
 #
 # public APIs
@@ -434,7 +457,7 @@ def get_config_vars(*args):
         _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.
+        # distutils2 module.
         _CONFIG_VARS['prefix'] = _PREFIX
         _CONFIG_VARS['exec_prefix'] = _EXEC_PREFIX
         _CONFIG_VARS['py_version'] = _PY_VERSION
@@ -443,12 +466,16 @@ def get_config_vars(*args):
         _CONFIG_VARS['base'] = _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 in ('nt', 'os2'):
             _init_non_posix(_CONFIG_VARS)
         if os.name == 'posix':
             _init_posix(_CONFIG_VARS)
-
         # Setting 'userbase' is done below the call to the
         # init function to enable using 'get_config_var' in
         # the init-function.
@@ -458,7 +485,7 @@ def get_config_vars(*args):
         if 'srcdir' not in _CONFIG_VARS:
             _CONFIG_VARS['srcdir'] = _PROJECT_BASE
         else:
-            _CONFIG_VARS['srcdir'] = realpath(_CONFIG_VARS['srcdir'])
+            _CONFIG_VARS['srcdir'] = _safe_realpath(_CONFIG_VARS['srcdir'])
 
         # Convert srcdir into an absolute path if it appears necessary.
         # Normally it is relative to the build directory.  However, during
@@ -466,8 +493,12 @@ def get_config_vars(*args):
         # from a different directory.
         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 != os.getcwd()):
+                base != cwd):
                 # 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.
@@ -583,7 +614,7 @@ def get_platform():
         if i == -1:
             return sys.platform
         j = sys.version.find(")", i)
-        look = sys.version[i + len(prefix):j].lower()
+        look = sys.version[i+len(prefix):j].lower()
         if look == 'amd64':
             return 'win-amd64'
         if look == 'itanium':
@@ -632,11 +663,9 @@ def get_platform():
         # machine is going to compile and link as if it were
         # MACOSX_DEPLOYMENT_TARGET.
         cfgvars = get_config_vars()
-        macver = os.environ.get('MACOSX_DEPLOYMENT_TARGET')
-        if not macver:
-            macver = cfgvars.get('MACOSX_DEPLOYMENT_TARGET')
+        macver = cfgvars.get('MACOSX_DEPLOYMENT_TARGET')
 
-        if 1:
+        if True:
             # Always calculate the release of the running machine,
             # needed to determine if we can build fat binaries or not.
 
@@ -667,8 +696,8 @@ def get_platform():
             release = macver
             osname = "macosx"
 
-            if (macrelease + '.') >= '10.4.' and \
-                    '-arch' in get_config_vars().get('CFLAGS', '').strip():
+            if ((macrelease + '.') >= '10.4.' and
+                '-arch' in get_config_vars().get('CFLAGS', '').strip()):
                 # The universal build will build fat binaries, but not on
                 # systems before 10.4
                 #
@@ -701,13 +730,13 @@ def get_platform():
                 # On OSX the machine type returned by uname is always the
                 # 32-bit variant, even if the executable architecture is
                 # the 64-bit variant
-                if sys.maxint >= (2 ** 32):
+                if sys.maxsize >= 2**32:
                     machine = 'x86_64'
 
             elif machine in ('PowerPC', 'Power_Macintosh'):
                 # Pick a sane name for the PPC architecture.
                 # See 'i386' case
-                if sys.maxint >= (2 ** 32):
+                if sys.maxsize >= 2**32:
                     machine = 'ppc64'
                 else:
                     machine = 'ppc'
@@ -720,20 +749,20 @@ def get_python_version():
 
 
 def _print_dict(title, data):
-    for index, (key, value) in enumerate(sorted(data.iteritems())):
+    for index, (key, value) in enumerate(sorted(data.items())):
         if index == 0:
-            print '%s: ' % (title)
-        print '\t%s = "%s"' % (key, value)
+            print('%s: ' % (title))
+        print('\t%s = "%s"' % (key, value))
 
 
 def _main():
     """Display all information sysconfig detains."""
-    print 'Platform: "%s"' % get_platform()
-    print 'Python version: "%s"' % get_python_version()
-    print 'Current installation scheme: "%s"' % _get_default_scheme()
-    print ''
+    print('Platform: "%s"' % get_platform())
+    print('Python version: "%s"' % get_python_version())
+    print('Current installation scheme: "%s"' % _get_default_scheme())
+    print(u'')
     _print_dict('Paths', get_paths())
-    print
+    print(u'')
     _print_dict('Variables', get_config_vars())
 
 
diff --git a/sysconfig.cfg b/sysconfig.cfg
deleted file mode 100644
index 573b12e..0000000
--- a/sysconfig.cfg
+++ /dev/null
@@ -1,111 +0,0 @@
-[globals]
-# These are useful categories that can be referenced at run time,
-# using packaging.database.get_file.
-# Configuration files
-config = {confdir}/{distribution.name}
-# Non-writable data that is independent of architecture (images, many xml/text files)
-appdata = {datadir}/{distribution.name}
-# Non-writable data that is architecture-dependent (some binary data formats)
-appdata.arch = {libdir}/{distribution.name}
-# Data, written by the app/lib, that must be preserved (databases)
-appdata.persistent = {statedir}/lib/{distribution.name}
-# Data, written by the app/lib, that can be safely discarded (cache)
-appdata.disposable = {statedir}/cache/{distribution.name}
-# Help or documentation files
-help = {datadir}/{distribution.name}
-icon = {datadir}/pixmaps
-scripts = {base}/bin
-
-# Non-runtime files.  These are valid categories for marking files for
-# install, but they should not be referenced by the app/lib at run time.
-# Help or documentation files
-doc = {datadir}/doc/{distribution.name}
-# GNU info documentation files
-info = {datadir}/info
-# man pages
-man = {datadir}/man
-
-[posix_prefix]
-# Configuration directories.  Some of these come straight out of the
-# configure script.  They are for implementing the other variables, not to
-# be used directly in [resource_locations].
-confdir = /etc
-datadir = /usr/share
-libdir = /usr/lib  ; or /usr/lib64 on a multilib system
-statedir = /var
-# User resource directory
-local = ~/.local/{distribution.name}
-
-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}{abiflags}
-platinclude = {platbase}/include/python{py_version_short}{abiflags}
-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}
diff --git a/sysconfig.py b/sysconfig.py
deleted file mode 100644
index 46295ab..0000000
--- a/sysconfig.py
+++ /dev/null
@@ -1,764 +0,0 @@
-"""Access to Python's configuration information."""
-
-import os
-import re
-import sys
-from os.path import pardir, realpath
-from ConfigParser import RawConfigParser
-
-__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',
-]
-
-# let's read the configuration file
-# XXX _CONFIG_DIR will be set by the Makefile later
-_CONFIG_DIR = os.path.normpath(os.path.dirname(__file__))
-_CONFIG_FILE = os.path.join(_CONFIG_DIR, 'sysconfig.cfg')
-_SCHEMES = RawConfigParser()
-_SCHEMES.read(_CONFIG_FILE)
-_VAR_REPL = re.compile(r'\{([^{]*?)\}')
-
-
-def _expand_globals(config):
-    if config.has_section('globals'):
-        globals = config.items('globals')
-    else:
-        globals = tuple()
-
-    sections = config.sections()
-    for section in sections:
-        if section == 'globals':
-            continue
-        for option, value in globals:
-            if config.has_option(section, option):
-                continue
-            config.set(section, option, value)
-    config.remove_section('globals')
-
-    # now expanding local variables defined in the cfg file
-    #
-    for section in config.sections():
-        variables = dict(config.items(section))
-
-        def _replacer(matchobj):
-            name = matchobj.group(1)
-            if name in variables:
-                return variables[name]
-            return matchobj.group(0)
-
-        for option, value in config.items(section):
-            config.set(section, option, _VAR_REPL.sub(_replacer, value))
-
-_expand_globals(_SCHEMES)
-
- # FIXME don't rely on sys.version here, its format is an implementatin detail
- # of CPython, use sys.version_info or sys.hexversion
-_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:
-    # 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 "pcbuild" in _PROJECT_BASE[-8:].lower():
-    _PROJECT_BASE = _safe_realpath(os.path.join(_PROJECT_BASE, pardir))
-# PC/VS7.1
-if os.name == "nt" and "\\pc\\v" in _PROJECT_BASE[-10:].lower():
-    _PROJECT_BASE = _safe_realpath(os.path.join(_PROJECT_BASE, pardir, pardir))
-# PC/AMD64
-if os.name == "nt" and "\\pcbuild\\amd64" in _PROJECT_BASE[-14:].lower():
-    _PROJECT_BASE = _safe_realpath(os.path.join(_PROJECT_BASE, pardir, pardir))
-
-
-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'):
-        _SCHEMES.set(scheme, 'include', '{srcdir}/Include')
-        _SCHEMES.set(scheme, 'platinclude', '{projectbase}/.')
-
-
-def _subst_vars(path, local_vars):
-    """In the string `path`, replace tokens like {some.thing} with the
-    corresponding value from the map `local_vars`.
-
-    If there is no corresponding value, leave the token unchanged.
-    """
-    def _replacer(matchobj):
-        name = matchobj.group(1)
-        if name in local_vars:
-            return local_vars[name]
-        elif name in os.environ:
-            return os.environ[name]
-        return matchobj.group(0)
-    return _VAR_REPL.sub(_replacer, path)
-
-
-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 _SCHEMES.items(scheme):
-        if os.name in ('posix', 'nt'):
-            value = os.path.expanduser(value)
-        res[key] = os.path.normpath(_subst_vars(value, vars))
-    return res
-
-
-def format_value(value, vars):
-    def _replacer(matchobj):
-        name = matchobj.group(1)
-        if name in vars:
-            return vars[name]
-        return matchobj.group(0)
-    return _VAR_REPL.sub(_replacer, value)
-
-
-def _get_default_scheme():
-    if os.name == 'posix':
-        # the default scheme for posix is posix_prefix
-        return 'posix_prefix'
-    return os.name
-
-
-def _getuserbase():
-    env_base = os.environ.get("PYTHONUSERBASE", None)
-
-    def joinuser(*args):
-        return os.path.expanduser(os.path.join(*args))
-
-    # what about 'os2emx', 'riscos' ?
-    if os.name == "nt":
-        base = os.environ.get("APPDATA") or "~"
-        if env_base:
-            return env_base
-        else:
-            return joinuser(base, "Python")
-
-    if sys.platform == "darwin":
-        framework = get_config_var("PYTHONFRAMEWORK")
-        if framework:
-            if env_base:
-                return env_base
-            else:
-                return joinuser("~", "Library", framework, "%d.%d" %
-                                sys.version_info[:2])
-
-    if env_base:
-        return env_base
-    else:
-        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).
-    _variable_rx = re.compile("([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 = {}
-
-    for line in open(filename).readlines():
-        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 "$" in tmpv:
-                notdone[n] = v
-            else:
-                try:
-                    v = int(v)
-                except ValueError:
-                    # insert literal `$'
-                    done[n] = v.replace('$$', '$')
-                else:
-                    done[n] = v
-
-    # do variable interpolation here
-    variables = list(notdone.keys())
-
-    # Variables with a 'PY_' prefix in the makefile. These need to
-    # be made available without that prefix through sysconfig.
-    # Special care is needed to ensure that variable expansion works, even
-    # if the expansion uses the name without a prefix.
-    renamed_variables = ('CFLAGS', 'LDFLAGS', 'CPPFLAGS')
-
-    while len(variables) > 0:
-        for name in tuple(variables):
-            value = notdone[name]
-            m = _findvar1_rx.search(value) or _findvar2_rx.search(value)
-            if m is not None:
-                n = m.group(1)
-                found = True
-                if n in done:
-                    item = str(done[n])
-                elif n in notdone:
-                    # get it on a subsequent round
-                    found = False
-                elif n in os.environ:
-                    # do it like make: fall back to environment
-                    item = os.environ[n]
-
-                elif n in renamed_variables:
-                    if (name.startswith('PY_') and
-                        name[3:] in renamed_variables):
-                        item = ""
-
-                    elif 'PY_' + n in notdone:
-                        found = False
-
-                    else:
-                        item = str(done['PY_' + n])
-
-                else:
-                    done[n] = item = ""
-
-                if found:
-                    after = value[m.end():]
-                    value = value[:m.start()] + item + after
-                    if "$" in after:
-                        notdone[name] = value
-                    else:
-                        try:
-                            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(_PROJECT_BASE, "Makefile")
-    if hasattr(sys, 'abiflags'):
-        config_dir_name = 'config-%s%s' % (_PY_VERSION_SHORT, sys.abiflags)
-    else:
-        config_dir_name = 'config'
-    return os.path.join(get_path('stdlib'), config_dir_name, 'Makefile')
-
-
-def _init_posix(vars):
-    """Initialize the module as appropriate for POSIX systems."""
-    # load the installed Makefile:
-    makefile = get_makefile_filename()
-    try:
-        _parse_makefile(makefile, vars)
-    except IOError, e:
-        msg = "invalid Python installation: unable to open %s" % makefile
-        if hasattr(e, "strerror"):
-            msg = msg + " (%s)" % e.strerror
-        raise IOError(msg)
-    # load the installed pyconfig.h:
-    config_h = get_config_h_filename()
-    try:
-        f = open(config_h)
-        parse_config_h(f, vars)
-        f.close()
-    except IOError, e:
-        msg = "invalid Python installation: unable to open %s" % config_h
-        if hasattr(e, "strerror"):
-            msg = msg + " (%s)" % e.strerror
-        raise IOError(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['LDSHARED'] = vars['BLDSHARED']
-
-
-def _init_non_posix(vars):
-    """Initialize the module as appropriate for NT"""
-    # set basic install directories
-    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))
-
-#
-# 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 = {}
-    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
-        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(_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():
-    """Return a tuple containing the schemes names."""
-    return tuple(sorted(_SCHEMES.sections()))
-
-
-def get_path_names():
-    """Return a tuple containing the paths names."""
-    # xxx see if we want a static list
-    return _SCHEMES.options('posix_prefix')
-
-
-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 dict(_SCHEMES.items(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 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
-    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
-        # distutils2 module.
-        _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
-        try:
-            _CONFIG_VARS['abiflags'] = sys.abiflags
-        except AttributeError:
-            # sys.abiflags may not be defined on all platforms.
-            _CONFIG_VARS['abiflags'] = ''
-
-        if os.name in ('nt', 'os2'):
-            _init_non_posix(_CONFIG_VARS)
-        if os.name == 'posix':
-            _init_posix(_CONFIG_VARS)
-        # Setting 'userbase' is done below the call to the
-        # init function to enable using 'get_config_var' in
-        # the init-function.
-        if sys.version >= '2.6':
-            _CONFIG_VARS['userbase'] = _getuserbase()
-
-        if 'srcdir' not in _CONFIG_VARS:
-            _CONFIG_VARS['srcdir'] = _PROJECT_BASE
-        else:
-            _CONFIG_VARS['srcdir'] = _safe_realpath(_CONFIG_VARS['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
-            try:
-                cwd = os.getcwd()
-            except OSError:
-                cwd = None
-            if (not os.path.isabs(_CONFIG_VARS['srcdir']) and
-                base != cwd):
-                # 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)
-
-        if sys.platform == 'darwin':
-            kernel_version = os.uname()[2]  # Kernel version (8.4.3)
-            major_version = int(kernel_version.split('.')[0])
-
-            if major_version < 8:
-                # On Mac OS X before 10.4, check if -arch and -isysroot
-                # are in CFLAGS or LDFLAGS and remove them if they are.
-                # This is needed when building extensions on a 10.3 system
-                # using a universal build of python.
-                for key in ('LDFLAGS', 'BASECFLAGS',
-                        # a number of derived variables. These need to be
-                        # patched up as well.
-                        'CFLAGS', 'PY_CFLAGS', 'BLDSHARED'):
-                    flags = _CONFIG_VARS[key]
-                    flags = re.sub('-arch\s+\w+\s', ' ', flags)
-                    flags = re.sub('-isysroot [^ \t]*', ' ', flags)
-                    _CONFIG_VARS[key] = flags
-            else:
-                # Allow the user to override the architecture flags using
-                # an environment variable.
-                # NOTE: This name was introduced by Apple in OSX 10.5 and
-                # is used by several scripting languages distributed with
-                # that OS release.
-                if 'ARCHFLAGS' in os.environ:
-                    arch = os.environ['ARCHFLAGS']
-                    for key in ('LDFLAGS', 'BASECFLAGS',
-                        # a number of derived variables. These need to be
-                        # patched up as well.
-                        'CFLAGS', 'PY_CFLAGS', 'BLDSHARED'):
-
-                        flags = _CONFIG_VARS[key]
-                        flags = re.sub('-arch\s+\w+\s', ' ', flags)
-                        flags = flags + ' ' + arch
-                        _CONFIG_VARS[key] = flags
-
-                # If we're on OSX 10.5 or later and the user tries to
-                # compiles an extension using an SDK that is not present
-                # on the current machine it is better to not use an SDK
-                # than to fail.
-                #
-                # The major usecase for this is users using a Python.org
-                # binary installer  on OSX 10.6: that installer uses
-                # the 10.4u SDK, but that SDK is not installed by default
-                # when you install Xcode.
-                #
-                CFLAGS = _CONFIG_VARS.get('CFLAGS', '')
-                m = re.search('-isysroot\s+(\S+)', CFLAGS)
-                if m is not None:
-                    sdk = m.group(1)
-                    if not os.path.exists(sdk):
-                        for key in ('LDFLAGS', 'BASECFLAGS',
-                             # a number of derived variables. These need to be
-                             # patched up as well.
-                            'CFLAGS', 'PY_CFLAGS', 'BLDSHARED'):
-
-                            flags = _CONFIG_VARS[key]
-                            flags = re.sub('-isysroot\s+\S+(\s|$)', ' ', flags)
-                            _CONFIG_VARS[key] = flags
-
-    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)
-    """
-    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'.
-    """
-    if os.name == 'nt':
-        # sniff sys.version for architecture.
-        prefix = " bit ("
-        i = sys.version.find(prefix)
-        if i == -1:
-            return sys.platform
-        j = sys.version.find(")", i)
-        look = sys.version[i+len(prefix):j].lower()
-        if look == 'amd64':
-            return 'win-amd64'
-        if look == 'itanium':
-            return 'win-ia64'
-        return sys.platform
-
-    if os.name != "posix" or not hasattr(os, 'uname'):
-        # XXX what about the architecture? NT is Intel or Alpha,
-        # Mac OS is M68k or PPC, etc.
-        return sys.platform
-
-    # Try to distinguish various flavours of Unix
-    osname, host, release, version, machine = os.uname()
-
-    # Convert the OS name to lowercase, remove '/' characters
-    # (to accommodate BSD/OS), 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:])
-        # fall through to standard osname-release-machine representation
-    elif osname[:4] == "irix":              # could be "irix64"!
-        return "%s-%s" % (osname, release)
-    elif osname[:3] == "aix":
-        return "%s-%s.%s" % (osname, version, release)
-    elif osname[:6] == "cygwin":
-        osname = "cygwin"
-        rel_re = re.compile(r'[\d.]+')
-        m = rel_re.match(release)
-        if m:
-            release = m.group()
-    elif osname[:6] == "darwin":
-        #
-        # For our purposes, we'll assume that the system version from
-        # distutils' perspective is what MACOSX_DEPLOYMENT_TARGET is set
-        # to. This makes the compatibility story a bit more sane because the
-        # machine is going to compile and link as if it were
-        # MACOSX_DEPLOYMENT_TARGET.
-        cfgvars = get_config_vars()
-        macver = cfgvars.get('MACOSX_DEPLOYMENT_TARGET')
-
-        if True:
-            # Always calculate the release of the running machine,
-            # needed to determine if we can build fat binaries or not.
-
-            macrelease = macver
-            # Get the system version. Reading this plist is a documented
-            # way to get the system version (see the documentation for
-            # the Gestalt Manager)
-            try:
-                f = open('/System/Library/CoreServices/SystemVersion.plist')
-            except IOError:
-                # We're on a plain darwin box, fall back to the default
-                # behaviour.
-                pass
-            else:
-                try:
-                    m = re.search(r'<key>ProductUserVisibleVersion</key>\s*'
-                                  r'<string>(.*?)</string>', f.read())
-                finally:
-                    f.close()
-                if m is not None:
-                    macrelease = '.'.join(m.group(1).split('.')[:2])
-                # else: fall back to the default behaviour
-
-        if not macver:
-            macver = macrelease
-
-        if macver:
-            release = macver
-            osname = "macosx"
-
-            if ((macrelease + '.') >= '10.4.' and
-                '-arch' in get_config_vars().get('CFLAGS', '').strip()):
-                # The universal build will build fat binaries, but not on
-                # systems before 10.4
-                #
-                # Try to detect 4-way universal builds, those have machine-type
-                # 'universal' instead of 'fat'.
-
-                machine = 'fat'
-                cflags = get_config_vars().get('CFLAGS')
-
-                archs = re.findall('-arch\s+(\S+)', cflags)
-                archs = tuple(sorted(set(archs)))
-
-                if len(archs) == 1:
-                    machine = archs[0]
-                elif archs == ('i386', 'ppc'):
-                    machine = 'fat'
-                elif archs == ('i386', 'x86_64'):
-                    machine = 'intel'
-                elif archs == ('i386', 'ppc', 'x86_64'):
-                    machine = 'fat3'
-                elif archs == ('ppc64', 'x86_64'):
-                    machine = 'fat64'
-                elif archs == ('i386', 'ppc', 'ppc64', 'x86_64'):
-                    machine = 'universal'
-                else:
-                    raise ValueError(
-                       "Don't know machine value for archs=%r" % (archs,))
-
-            elif machine == 'i386':
-                # On OSX the machine type returned by uname is always the
-                # 32-bit variant, even if the executable architecture is
-                # the 64-bit variant
-                if sys.maxsize >= 2**32:
-                    machine = 'x86_64'
-
-            elif machine in ('PowerPC', 'Power_Macintosh'):
-                # Pick a sane name for the PPC architecture.
-                # See 'i386' case
-                if sys.maxsize >= 2**32:
-                    machine = 'ppc64'
-                else:
-                    machine = 'ppc'
-
-    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."""
-    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()