2011-05-19 13:07:25 +02:00
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"""Access to Python's configuration information."""
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2010-01-29 12:41:03 +01:00
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import os
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2011-05-19 13:07:25 +02:00
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import sys
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2010-03-11 01:05:17 +01:00
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from os.path import pardir, realpath
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2010-01-29 12:41:03 +01:00
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2010-09-20 17:29:53 +02:00
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__all__ = [
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'get_config_h_filename',
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'get_config_var',
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'get_config_vars',
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'get_makefile_filename',
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'get_path',
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'get_path_names',
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'get_paths',
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'get_platform',
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'get_python_version',
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'get_scheme_names',
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'parse_config_h',
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2011-05-19 13:07:25 +02:00
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]
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2012-06-24 09:27:43 +02:00
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_INSTALL_SCHEMES = {
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'posix_prefix': {
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'stdlib': '{installed_base}/lib/python{py_version_short}',
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'platstdlib': '{platbase}/lib/python{py_version_short}',
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'purelib': '{base}/lib/python{py_version_short}/site-packages',
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'platlib': '{platbase}/lib/python{py_version_short}/site-packages',
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'include':
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'{installed_base}/include/python{py_version_short}{abiflags}',
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'platinclude':
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'{installed_platbase}/include/python{py_version_short}{abiflags}',
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'scripts': '{base}/bin',
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'data': '{base}',
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},
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'posix_home': {
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'stdlib': '{installed_base}/lib/python',
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'platstdlib': '{base}/lib/python',
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'purelib': '{base}/lib/python',
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'platlib': '{base}/lib/python',
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'include': '{installed_base}/include/python',
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'platinclude': '{installed_base}/include/python',
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'scripts': '{base}/bin',
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'data': '{base}',
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},
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'nt': {
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'stdlib': '{installed_base}/Lib',
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'platstdlib': '{base}/Lib',
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'purelib': '{base}/Lib/site-packages',
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'platlib': '{base}/Lib/site-packages',
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'include': '{installed_base}/Include',
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'platinclude': '{installed_base}/Include',
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'scripts': '{base}/Scripts',
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'data': '{base}',
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},
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2017-06-28 17:31:53 +02:00
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# NOTE: When modifying "purelib" scheme, update site._get_path() too.
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2012-06-24 09:27:43 +02:00
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'nt_user': {
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'stdlib': '{userbase}/Python{py_version_nodot}',
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'platstdlib': '{userbase}/Python{py_version_nodot}',
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'purelib': '{userbase}/Python{py_version_nodot}/site-packages',
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'platlib': '{userbase}/Python{py_version_nodot}/site-packages',
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'include': '{userbase}/Python{py_version_nodot}/Include',
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2015-02-14 18:50:59 +01:00
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'scripts': '{userbase}/Python{py_version_nodot}/Scripts',
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2012-06-24 09:27:43 +02:00
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'data': '{userbase}',
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},
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'posix_user': {
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'stdlib': '{userbase}/lib/python{py_version_short}',
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'platstdlib': '{userbase}/lib/python{py_version_short}',
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'purelib': '{userbase}/lib/python{py_version_short}/site-packages',
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'platlib': '{userbase}/lib/python{py_version_short}/site-packages',
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'include': '{userbase}/include/python{py_version_short}',
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'scripts': '{userbase}/bin',
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'data': '{userbase}',
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},
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'osx_framework_user': {
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'stdlib': '{userbase}/lib/python',
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'platstdlib': '{userbase}/lib/python',
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'purelib': '{userbase}/lib/python/site-packages',
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'platlib': '{userbase}/lib/python/site-packages',
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'include': '{userbase}/include',
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'scripts': '{userbase}/bin',
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'data': '{userbase}',
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},
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}
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_SCHEME_KEYS = ('stdlib', 'platstdlib', 'purelib', 'platlib', 'include',
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'scripts', 'data')
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2011-05-19 13:07:25 +02:00
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2012-05-26 04:45:29 +02:00
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# FIXME don't rely on sys.version here, its format is an implementation detail
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2011-05-19 13:07:25 +02:00
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# of CPython, use sys.version_info or sys.hexversion
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2010-01-29 12:41:03 +01:00
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_PY_VERSION = sys.version.split()[0]
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2016-02-11 12:10:36 +01:00
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_PY_VERSION_SHORT = '%d.%d' % sys.version_info[:2]
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_PY_VERSION_SHORT_NO_DOT = '%d%d' % sys.version_info[:2]
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2010-01-29 12:41:03 +01:00
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_PREFIX = os.path.normpath(sys.prefix)
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2012-05-26 04:45:29 +02:00
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_BASE_PREFIX = os.path.normpath(sys.base_prefix)
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2010-01-29 12:41:03 +01:00
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_EXEC_PREFIX = os.path.normpath(sys.exec_prefix)
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2012-05-26 04:45:29 +02:00
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_BASE_EXEC_PREFIX = os.path.normpath(sys.base_exec_prefix)
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2010-01-29 12:41:03 +01:00
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_CONFIG_VARS = None
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_USER_BASE = None
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2010-10-13 00:23:23 +02:00
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2011-05-19 13:07:25 +02:00
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2010-10-13 00:23:23 +02:00
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def _safe_realpath(path):
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try:
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return realpath(path)
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except OSError:
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return path
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2010-03-12 15:20:59 +01:00
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if sys.executable:
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2010-10-13 00:23:23 +02:00
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_PROJECT_BASE = os.path.dirname(_safe_realpath(sys.executable))
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2010-03-12 15:20:59 +01:00
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else:
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# sys.executable can be empty if argv[0] has been changed and Python is
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# unable to retrieve the real program name
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2010-10-13 00:23:23 +02:00
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_PROJECT_BASE = _safe_realpath(os.getcwd())
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2010-01-29 12:41:03 +01:00
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2014-11-22 21:54:57 +01:00
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if (os.name == 'nt' and
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_PROJECT_BASE.lower().endswith(('\\pcbuild\\win32', '\\pcbuild\\amd64'))):
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2010-10-13 00:23:23 +02:00
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_PROJECT_BASE = _safe_realpath(os.path.join(_PROJECT_BASE, pardir, pardir))
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2010-01-29 12:41:03 +01:00
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2012-06-30 20:42:45 +02:00
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# set for cross builds
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2012-06-30 22:35:00 +02:00
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if "_PYTHON_PROJECT_BASE" in os.environ:
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_PROJECT_BASE = _safe_realpath(os.environ["_PYTHON_PROJECT_BASE"])
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2012-06-30 20:42:45 +02:00
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2012-05-26 04:45:29 +02:00
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def _is_python_source_dir(d):
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2010-01-29 12:41:03 +01:00
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for fn in ("Setup.dist", "Setup.local"):
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2012-05-26 04:45:29 +02:00
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if os.path.isfile(os.path.join(d, "Modules", fn)):
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2010-01-29 12:41:03 +01:00
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return True
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return False
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2012-05-26 04:45:29 +02:00
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_sys_home = getattr(sys, '_home', None)
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2014-11-22 21:54:57 +01:00
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if (_sys_home and os.name == 'nt' and
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_sys_home.lower().endswith(('\\pcbuild\\win32', '\\pcbuild\\amd64'))):
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_sys_home = os.path.dirname(os.path.dirname(_sys_home))
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2012-05-26 04:45:29 +02:00
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def is_python_build(check_home=False):
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if check_home and _sys_home:
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return _is_python_source_dir(_sys_home)
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return _is_python_source_dir(_PROJECT_BASE)
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_PYTHON_BUILD = is_python_build(True)
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2010-01-29 12:41:03 +01:00
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if _PYTHON_BUILD:
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for scheme in ('posix_prefix', 'posix_home'):
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2012-06-24 09:27:43 +02:00
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_INSTALL_SCHEMES[scheme]['include'] = '{srcdir}/Include'
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_INSTALL_SCHEMES[scheme]['platinclude'] = '{projectbase}/.'
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2011-05-19 13:07:25 +02:00
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2010-01-29 12:41:03 +01:00
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2012-06-24 09:27:43 +02:00
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def _subst_vars(s, local_vars):
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try:
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return s.format(**local_vars)
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except KeyError:
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try:
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return s.format(**os.environ)
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except KeyError as var:
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2017-04-05 08:37:24 +02:00
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raise AttributeError('{%s}' % var) from None
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2010-01-29 12:41:03 +01:00
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def _extend_dict(target_dict, other_dict):
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target_keys = target_dict.keys()
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for key, value in other_dict.items():
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if key in target_keys:
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continue
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target_dict[key] = value
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2011-05-19 13:07:25 +02:00
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2010-01-29 12:41:03 +01:00
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def _expand_vars(scheme, vars):
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res = {}
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if vars is None:
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vars = {}
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_extend_dict(vars, get_config_vars())
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2012-06-24 09:27:43 +02:00
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for key, value in _INSTALL_SCHEMES[scheme].items():
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2010-01-29 12:41:03 +01:00
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if os.name in ('posix', 'nt'):
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value = os.path.expanduser(value)
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res[key] = os.path.normpath(_subst_vars(value, vars))
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return res
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2011-05-19 13:07:25 +02:00
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2010-01-29 12:41:03 +01:00
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def _get_default_scheme():
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if os.name == 'posix':
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# the default scheme for posix is posix_prefix
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return 'posix_prefix'
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return os.name
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2011-05-19 13:07:25 +02:00
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2017-06-28 17:31:53 +02:00
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# NOTE: site.py has copy of this function.
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# Sync it when modify this function.
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2010-01-29 12:41:03 +01:00
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def _getuserbase():
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env_base = os.environ.get("PYTHONUSERBASE", None)
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2017-06-28 17:31:53 +02:00
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if env_base:
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return env_base
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2011-05-19 13:07:25 +02:00
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2010-01-29 12:41:03 +01:00
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def joinuser(*args):
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return os.path.expanduser(os.path.join(*args))
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if os.name == "nt":
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base = os.environ.get("APPDATA") or "~"
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2017-06-28 17:31:53 +02:00
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return joinuser(base, "Python")
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2010-05-08 12:49:43 +02:00
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2017-06-28 17:31:53 +02:00
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if sys.platform == "darwin" and sys._framework:
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return joinuser("~", "Library", sys._framework,
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"%d.%d" % sys.version_info[:2])
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return joinuser("~", ".local")
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2010-01-29 12:41:03 +01:00
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def _parse_makefile(filename, vars=None):
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"""Parse a Makefile-style file.
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A dictionary containing name/value pairs is returned. If an
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optional dictionary is passed in as the second argument, it is
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used instead of a new dictionary.
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"""
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# Regexes needed for parsing Makefile (and similar syntaxes,
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# like old-style Setup files).
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2013-10-12 00:24:55 +02:00
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import re
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2016-09-08 19:59:53 +02:00
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_variable_rx = re.compile(r"([a-zA-Z][a-zA-Z0-9_]+)\s*=\s*(.*)")
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2010-01-29 12:41:03 +01:00
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_findvar1_rx = re.compile(r"\$\(([A-Za-z][A-Za-z0-9_]*)\)")
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_findvar2_rx = re.compile(r"\${([A-Za-z][A-Za-z0-9_]*)}")
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if vars is None:
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vars = {}
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done = {}
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notdone = {}
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2010-10-23 19:02:31 +02:00
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with open(filename, errors="surrogateescape") as f:
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2010-01-29 12:41:03 +01:00
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lines = f.readlines()
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for line in lines:
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if line.startswith('#') or line.strip() == '':
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continue
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m = _variable_rx.match(line)
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if m:
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n, v = m.group(1, 2)
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v = v.strip()
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# `$$' is a literal `$' in make
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tmpv = v.replace('$$', '')
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if "$" in tmpv:
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notdone[n] = v
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else:
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try:
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v = int(v)
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except ValueError:
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# insert literal `$'
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done[n] = v.replace('$$', '$')
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else:
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done[n] = v
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# do variable interpolation here
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variables = list(notdone.keys())
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2010-07-20 18:07:10 +02:00
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# Variables with a 'PY_' prefix in the makefile. These need to
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# be made available without that prefix through sysconfig.
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# Special care is needed to ensure that variable expansion works, even
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# if the expansion uses the name without a prefix.
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renamed_variables = ('CFLAGS', 'LDFLAGS', 'CPPFLAGS')
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2010-01-29 12:41:03 +01:00
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while len(variables) > 0:
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for name in tuple(variables):
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value = notdone[name]
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2016-01-11 21:41:40 +01:00
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m1 = _findvar1_rx.search(value)
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m2 = _findvar2_rx.search(value)
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if m1 and m2:
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m = m1 if m1.start() < m2.start() else m2
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else:
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m = m1 if m1 else m2
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2010-01-29 12:41:03 +01:00
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if m is not None:
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n = m.group(1)
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found = True
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if n in done:
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item = str(done[n])
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elif n in notdone:
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# get it on a subsequent round
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found = False
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elif n in os.environ:
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# do it like make: fall back to environment
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item = os.environ[n]
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2010-07-20 18:07:10 +02:00
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elif n in renamed_variables:
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2011-05-19 13:07:25 +02:00
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if (name.startswith('PY_') and
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name[3:] in renamed_variables):
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2010-07-20 18:07:10 +02:00
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item = ""
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elif 'PY_' + n in notdone:
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found = False
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else:
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item = str(done['PY_' + n])
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2010-01-29 12:41:03 +01:00
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else:
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done[n] = item = ""
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2010-07-20 18:07:10 +02:00
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2010-01-29 12:41:03 +01:00
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if found:
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after = value[m.end():]
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value = value[:m.start()] + item + after
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if "$" in after:
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notdone[name] = value
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else:
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try:
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value = int(value)
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except ValueError:
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done[name] = value.strip()
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else:
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done[name] = value
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variables.remove(name)
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2010-07-20 18:07:10 +02:00
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if name.startswith('PY_') \
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2011-05-24 23:37:07 +02:00
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|
|
and name[3:] in renamed_variables:
|
2010-07-20 18:07:10 +02:00
|
|
|
|
|
|
|
name = name[3:]
|
|
|
|
if name not in done:
|
|
|
|
done[name] = value
|
|
|
|
|
2010-01-29 12:41:03 +01:00
|
|
|
else:
|
2011-05-24 23:37:07 +02:00
|
|
|
# bogus variable reference (e.g. "prefix=$/opt/python");
|
|
|
|
# just drop it since we can't deal
|
|
|
|
done[name] = value
|
2010-01-29 12:41:03 +01:00
|
|
|
variables.remove(name)
|
|
|
|
|
2010-10-10 11:37:12 +02:00
|
|
|
# strip spurious spaces
|
|
|
|
for k, v in done.items():
|
|
|
|
if isinstance(v, str):
|
|
|
|
done[k] = v.strip()
|
|
|
|
|
2010-01-29 12:41:03 +01:00
|
|
|
# save the results in the global dictionary
|
|
|
|
vars.update(done)
|
|
|
|
return vars
|
|
|
|
|
|
|
|
|
2010-09-20 17:29:53 +02:00
|
|
|
def get_makefile_filename():
|
2010-11-22 02:19:20 +01:00
|
|
|
"""Return the path of the Makefile."""
|
2010-01-29 12:41:03 +01:00
|
|
|
if _PYTHON_BUILD:
|
2012-05-26 04:45:29 +02:00
|
|
|
return os.path.join(_sys_home or _PROJECT_BASE, "Makefile")
|
2011-05-19 13:07:25 +02:00
|
|
|
if hasattr(sys, 'abiflags'):
|
|
|
|
config_dir_name = 'config-%s%s' % (_PY_VERSION_SHORT, sys.abiflags)
|
|
|
|
else:
|
|
|
|
config_dir_name = 'config'
|
2016-06-14 08:55:19 +02:00
|
|
|
if hasattr(sys.implementation, '_multiarch'):
|
|
|
|
config_dir_name += '-%s' % sys.implementation._multiarch
|
2011-05-19 13:07:25 +02:00
|
|
|
return os.path.join(get_path('stdlib'), config_dir_name, 'Makefile')
|
2010-01-29 12:41:03 +01:00
|
|
|
|
2016-09-10 02:59:49 +02:00
|
|
|
|
2016-09-11 22:22:24 +02:00
|
|
|
def _get_sysconfigdata_name():
|
|
|
|
return os.environ.get('_PYTHON_SYSCONFIGDATA_NAME',
|
|
|
|
'_sysconfigdata_{abi}_{platform}_{multiarch}'.format(
|
|
|
|
abi=sys.abiflags,
|
|
|
|
platform=sys.platform,
|
|
|
|
multiarch=getattr(sys.implementation, '_multiarch', ''),
|
|
|
|
))
|
2016-09-10 02:59:49 +02:00
|
|
|
|
|
|
|
|
2011-10-18 17:52:24 +02:00
|
|
|
def _generate_posix_vars():
|
|
|
|
"""Generate the Python module containing build-time variables."""
|
|
|
|
import pprint
|
|
|
|
vars = {}
|
2010-01-29 12:41:03 +01:00
|
|
|
# load the installed Makefile:
|
2010-09-20 17:29:53 +02:00
|
|
|
makefile = get_makefile_filename()
|
2010-01-29 12:41:03 +01:00
|
|
|
try:
|
|
|
|
_parse_makefile(makefile, vars)
|
2012-12-25 15:47:37 +01:00
|
|
|
except OSError as e:
|
2010-01-29 12:41:03 +01:00
|
|
|
msg = "invalid Python installation: unable to open %s" % makefile
|
|
|
|
if hasattr(e, "strerror"):
|
|
|
|
msg = msg + " (%s)" % e.strerror
|
2012-12-25 15:47:37 +01:00
|
|
|
raise OSError(msg)
|
2010-01-29 12:41:03 +01:00
|
|
|
# load the installed pyconfig.h:
|
|
|
|
config_h = get_config_h_filename()
|
|
|
|
try:
|
2010-10-14 23:15:17 +02:00
|
|
|
with open(config_h) as f:
|
|
|
|
parse_config_h(f, vars)
|
2012-12-25 15:47:37 +01:00
|
|
|
except OSError as e:
|
2010-01-29 12:41:03 +01:00
|
|
|
msg = "invalid Python installation: unable to open %s" % config_h
|
|
|
|
if hasattr(e, "strerror"):
|
|
|
|
msg = msg + " (%s)" % e.strerror
|
2012-12-25 15:47:37 +01:00
|
|
|
raise OSError(msg)
|
2010-01-29 12:41:03 +01:00
|
|
|
# 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:
|
2013-10-19 22:05:05 +02:00
|
|
|
vars['BLDSHARED'] = vars['LDSHARED']
|
2011-10-20 00:41:21 +02:00
|
|
|
|
2012-10-17 10:23:50 +02:00
|
|
|
# There's a chicken-and-egg situation on OS X with regards to the
|
|
|
|
# _sysconfigdata module after the changes introduced by #15298:
|
|
|
|
# get_config_vars() is called by get_platform() as part of the
|
|
|
|
# `make pybuilddir.txt` target -- which is a precursor to the
|
|
|
|
# _sysconfigdata.py module being constructed. Unfortunately,
|
|
|
|
# get_config_vars() eventually calls _init_posix(), which attempts
|
2012-10-18 00:03:24 +02:00
|
|
|
# to import _sysconfigdata, which we won't have built yet. In order
|
|
|
|
# for _init_posix() to work, if we're on Darwin, just mock up the
|
|
|
|
# _sysconfigdata module manually and populate it with the build vars.
|
|
|
|
# This is more than sufficient for ensuring the subsequent call to
|
|
|
|
# get_platform() succeeds.
|
2016-09-11 22:22:24 +02:00
|
|
|
name = _get_sysconfigdata_name()
|
2012-10-18 00:03:24 +02:00
|
|
|
if 'darwin' in sys.platform:
|
2013-06-15 20:32:11 +02:00
|
|
|
import types
|
|
|
|
module = types.ModuleType(name)
|
2012-10-18 00:03:24 +02:00
|
|
|
module.build_time_vars = vars
|
|
|
|
sys.modules[name] = module
|
2010-01-29 12:41:03 +01:00
|
|
|
|
2016-02-11 12:10:36 +01:00
|
|
|
pybuilddir = 'build/lib.%s-%s' % (get_platform(), _PY_VERSION_SHORT)
|
2012-10-17 10:23:50 +02:00
|
|
|
if hasattr(sys, "gettotalrefcount"):
|
|
|
|
pybuilddir += '-pydebug'
|
|
|
|
os.makedirs(pybuilddir, exist_ok=True)
|
2012-10-18 00:03:24 +02:00
|
|
|
destfile = os.path.join(pybuilddir, name + '.py')
|
2012-10-17 10:23:50 +02:00
|
|
|
|
2012-10-18 00:03:24 +02:00
|
|
|
with open(destfile, 'w', encoding='utf8') as f:
|
|
|
|
f.write('# system configuration generated and used by'
|
|
|
|
' the sysconfig module\n')
|
|
|
|
f.write('build_time_vars = ')
|
|
|
|
pprint.pprint(vars, stream=f)
|
2012-10-17 10:23:50 +02:00
|
|
|
|
2012-10-16 14:13:12 +02:00
|
|
|
# Create file used for sys.path fixup -- see Modules/getpath.c
|
|
|
|
with open('pybuilddir.txt', 'w', encoding='ascii') as f:
|
|
|
|
f.write(pybuilddir)
|
|
|
|
|
2011-10-18 17:52:24 +02:00
|
|
|
def _init_posix(vars):
|
|
|
|
"""Initialize the module as appropriate for POSIX systems."""
|
|
|
|
# _sysconfigdata is generated at build time, see _generate_posix_vars()
|
2016-09-10 02:59:49 +02:00
|
|
|
name = _get_sysconfigdata_name()
|
2016-06-14 08:55:19 +02:00
|
|
|
_temp = __import__(name, globals(), locals(), ['build_time_vars'], 0)
|
|
|
|
build_time_vars = _temp.build_time_vars
|
2011-10-18 17:52:24 +02:00
|
|
|
vars.update(build_time_vars)
|
2011-05-19 13:07:25 +02:00
|
|
|
|
2010-01-29 12:41:03 +01:00
|
|
|
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')
|
2013-03-21 21:21:49 +01:00
|
|
|
vars['EXT_SUFFIX'] = '.pyd'
|
2010-01-29 12:41:03 +01:00
|
|
|
vars['EXE'] = '.exe'
|
|
|
|
vars['VERSION'] = _PY_VERSION_SHORT_NO_DOT
|
2010-10-13 00:23:23 +02:00
|
|
|
vars['BINDIR'] = os.path.dirname(_safe_realpath(sys.executable))
|
2010-01-29 12:41:03 +01:00
|
|
|
|
|
|
|
#
|
|
|
|
# public APIs
|
|
|
|
#
|
|
|
|
|
2010-02-03 00:16:13 +01:00
|
|
|
|
|
|
|
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 = {}
|
2013-10-12 00:24:55 +02:00
|
|
|
import re
|
2010-02-03 00:16:13 +01:00
|
|
|
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)
|
2011-05-19 13:07:25 +02:00
|
|
|
try:
|
|
|
|
v = int(v)
|
|
|
|
except ValueError:
|
|
|
|
pass
|
2010-02-03 00:16:13 +01:00
|
|
|
vars[n] = v
|
|
|
|
else:
|
|
|
|
m = undef_rx.match(line)
|
|
|
|
if m:
|
|
|
|
vars[m.group(1)] = 0
|
|
|
|
return vars
|
|
|
|
|
2011-05-19 13:07:25 +02:00
|
|
|
|
2010-02-03 00:16:13 +01:00
|
|
|
def get_config_h_filename():
|
2010-11-22 02:19:20 +01:00
|
|
|
"""Return the path of pyconfig.h."""
|
2010-02-03 00:16:13 +01:00
|
|
|
if _PYTHON_BUILD:
|
|
|
|
if os.name == "nt":
|
2012-05-26 04:45:29 +02:00
|
|
|
inc_dir = os.path.join(_sys_home or _PROJECT_BASE, "PC")
|
2010-02-03 00:16:13 +01:00
|
|
|
else:
|
2012-05-26 04:45:29 +02:00
|
|
|
inc_dir = _sys_home or _PROJECT_BASE
|
2010-02-03 00:16:13 +01:00
|
|
|
else:
|
|
|
|
inc_dir = get_path('platinclude')
|
|
|
|
return os.path.join(inc_dir, 'pyconfig.h')
|
|
|
|
|
2011-05-19 13:07:25 +02:00
|
|
|
|
2010-01-29 12:41:03 +01:00
|
|
|
def get_scheme_names():
|
2010-11-22 02:19:20 +01:00
|
|
|
"""Return a tuple containing the schemes names."""
|
2012-06-24 09:27:43 +02:00
|
|
|
return tuple(sorted(_INSTALL_SCHEMES))
|
2011-05-19 13:07:25 +02:00
|
|
|
|
2010-01-29 12:41:03 +01:00
|
|
|
|
|
|
|
def get_path_names():
|
2010-11-22 02:19:20 +01:00
|
|
|
"""Return a tuple containing the paths names."""
|
2012-06-24 09:27:43 +02:00
|
|
|
return _SCHEME_KEYS
|
2011-05-19 13:07:25 +02:00
|
|
|
|
2010-01-29 12:41:03 +01:00
|
|
|
|
|
|
|
def get_paths(scheme=_get_default_scheme(), vars=None, expand=True):
|
2010-11-22 02:19:20 +01:00
|
|
|
"""Return a mapping containing an install scheme.
|
2010-01-29 12:41:03 +01:00
|
|
|
|
|
|
|
``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:
|
2012-06-24 09:27:43 +02:00
|
|
|
return _INSTALL_SCHEMES[scheme]
|
2011-05-19 13:07:25 +02:00
|
|
|
|
2010-01-29 12:41:03 +01:00
|
|
|
|
|
|
|
def get_path(name, scheme=_get_default_scheme(), vars=None, expand=True):
|
2010-11-22 02:19:20 +01:00
|
|
|
"""Return a path corresponding to the scheme.
|
2010-01-29 12:41:03 +01:00
|
|
|
|
|
|
|
``scheme`` is the install scheme name.
|
|
|
|
"""
|
|
|
|
return get_paths(scheme, vars, expand)[name]
|
|
|
|
|
2011-05-19 13:07:25 +02:00
|
|
|
|
2010-01-29 12:41:03 +01:00
|
|
|
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;
|
2012-07-21 14:36:30 +02:00
|
|
|
On Windows it's a much smaller set.
|
2010-01-29 12:41:03 +01:00
|
|
|
|
|
|
|
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
|
2012-06-24 06:07:41 +02:00
|
|
|
# Distutils.
|
2010-01-29 12:41:03 +01:00
|
|
|
_CONFIG_VARS['prefix'] = _PREFIX
|
|
|
|
_CONFIG_VARS['exec_prefix'] = _EXEC_PREFIX
|
|
|
|
_CONFIG_VARS['py_version'] = _PY_VERSION
|
|
|
|
_CONFIG_VARS['py_version_short'] = _PY_VERSION_SHORT
|
2016-02-11 12:10:36 +01:00
|
|
|
_CONFIG_VARS['py_version_nodot'] = _PY_VERSION_SHORT_NO_DOT
|
2012-05-26 04:45:29 +02:00
|
|
|
_CONFIG_VARS['installed_base'] = _BASE_PREFIX
|
2010-01-29 12:41:03 +01:00
|
|
|
_CONFIG_VARS['base'] = _PREFIX
|
2012-05-26 04:45:29 +02:00
|
|
|
_CONFIG_VARS['installed_platbase'] = _BASE_EXEC_PREFIX
|
2010-01-29 12:41:03 +01:00
|
|
|
_CONFIG_VARS['platbase'] = _EXEC_PREFIX
|
|
|
|
_CONFIG_VARS['projectbase'] = _PROJECT_BASE
|
2010-11-25 02:34:47 +01:00
|
|
|
try:
|
|
|
|
_CONFIG_VARS['abiflags'] = sys.abiflags
|
|
|
|
except AttributeError:
|
|
|
|
# sys.abiflags may not be defined on all platforms.
|
|
|
|
_CONFIG_VARS['abiflags'] = ''
|
2010-01-29 12:41:03 +01:00
|
|
|
|
2012-10-05 03:15:39 +02:00
|
|
|
if os.name == 'nt':
|
2010-01-29 12:41:03 +01:00
|
|
|
_init_non_posix(_CONFIG_VARS)
|
|
|
|
if os.name == 'posix':
|
|
|
|
_init_posix(_CONFIG_VARS)
|
2013-11-22 17:08:05 +01:00
|
|
|
# For backward compatibility, see issue19555
|
|
|
|
SO = _CONFIG_VARS.get('EXT_SUFFIX')
|
|
|
|
if SO is not None:
|
|
|
|
_CONFIG_VARS['SO'] = SO
|
2010-05-08 12:49:43 +02:00
|
|
|
# Setting 'userbase' is done below the call to the
|
|
|
|
# init function to enable using 'get_config_var' in
|
|
|
|
# the init-function.
|
2011-11-07 09:18:30 +01:00
|
|
|
_CONFIG_VARS['userbase'] = _getuserbase()
|
2010-05-08 12:49:43 +02:00
|
|
|
|
2012-07-27 13:06:55 +02:00
|
|
|
# Always convert srcdir to an absolute path
|
|
|
|
srcdir = _CONFIG_VARS.get('srcdir', _PROJECT_BASE)
|
|
|
|
if os.name == 'posix':
|
|
|
|
if _PYTHON_BUILD:
|
|
|
|
# If srcdir is a relative path (typically '.' or '..')
|
|
|
|
# then it should be interpreted relative to the directory
|
|
|
|
# containing Makefile.
|
|
|
|
base = os.path.dirname(get_makefile_filename())
|
|
|
|
srcdir = os.path.join(base, srcdir)
|
|
|
|
else:
|
|
|
|
# srcdir is not meaningful since the installation is
|
|
|
|
# spread about the filesystem. We choose the
|
|
|
|
# directory containing the Makefile since we know it
|
|
|
|
# exists.
|
|
|
|
srcdir = os.path.dirname(get_makefile_filename())
|
|
|
|
_CONFIG_VARS['srcdir'] = _safe_realpath(srcdir)
|
2010-01-29 12:41:03 +01:00
|
|
|
|
2012-07-21 14:36:30 +02:00
|
|
|
# OS X platforms require special customization to handle
|
|
|
|
# multi-architecture, multi-os-version installers
|
2010-01-29 12:41:03 +01:00
|
|
|
if sys.platform == 'darwin':
|
2012-07-21 14:36:30 +02:00
|
|
|
import _osx_support
|
|
|
|
_osx_support.customize_config_vars(_CONFIG_VARS)
|
2010-01-29 12:41:03 +01:00
|
|
|
|
|
|
|
if args:
|
|
|
|
vals = []
|
|
|
|
for name in args:
|
|
|
|
vals.append(_CONFIG_VARS.get(name))
|
|
|
|
return vals
|
|
|
|
else:
|
|
|
|
return _CONFIG_VARS
|
|
|
|
|
2011-05-19 13:07:25 +02:00
|
|
|
|
2010-01-29 12:41:03 +01:00
|
|
|
def get_config_var(name):
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"""Return the value of a single variable using the dictionary returned by
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'get_config_vars()'.
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Equivalent to get_config_vars().get(name)
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"""
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2013-11-22 00:57:14 +01:00
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if name == 'SO':
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import warnings
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2013-11-26 16:08:24 +01:00
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warnings.warn('SO is deprecated, use EXT_SUFFIX', DeprecationWarning, 2)
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2010-01-29 12:41:03 +01:00
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return get_config_vars().get(name)
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2011-05-19 13:07:25 +02:00
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2010-01-29 12:41:03 +01:00
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def get_platform():
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"""Return a string that identifies the current platform.
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This is used mainly to distinguish platform-specific build directories and
|
2017-09-05 01:36:05 +02:00
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platform-specific built distributions. Typically includes the OS name and
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version and the architecture (as supplied by 'os.uname()'), although the
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exact information included depends on the OS; on Linux, the kernel version
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isn't particularly important.
|
2010-01-29 12:41:03 +01:00
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Examples of returned values:
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linux-i586
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linux-alpha (?)
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solaris-2.6-sun4u
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Windows will return one of:
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win-amd64 (64bit Windows on AMD64 (aka x86_64, Intel64, EM64T, etc)
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win32 (all others - specifically, sys.platform is returned)
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For other non-POSIX platforms, currently just returns 'sys.platform'.
|
2017-09-05 01:36:05 +02:00
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2010-01-29 12:41:03 +01:00
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"""
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if os.name == 'nt':
|
2017-09-07 00:45:25 +02:00
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if 'amd64' in sys.version.lower():
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2010-01-29 12:41:03 +01:00
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return 'win-amd64'
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return sys.platform
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if os.name != "posix" or not hasattr(os, 'uname'):
|
2012-07-21 14:36:30 +02:00
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# XXX what about the architecture? NT is Intel or Alpha
|
2010-01-29 12:41:03 +01:00
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return sys.platform
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|
2012-06-30 20:42:45 +02:00
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# Set for cross builds explicitly
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|
if "_PYTHON_HOST_PLATFORM" in os.environ:
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return os.environ["_PYTHON_HOST_PLATFORM"]
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|
2010-01-29 12:41:03 +01:00
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|
# Try to distinguish various flavours of Unix
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|
|
osname, host, release, version, machine = os.uname()
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# Convert the OS name to lowercase, remove '/' characters
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|
# (to accommodate BSD/OS), and translate spaces (for "Power Macintosh")
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|
|
osname = osname.lower().replace('/', '')
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machine = machine.replace(' ', '_')
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machine = machine.replace('/', '-')
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if osname[:5] == "linux":
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# At least on Linux/Intel, 'machine' is the processor --
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# i386, etc.
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|
|
# XXX what about Alpha, SPARC, etc?
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|
return "%s-%s" % (osname, machine)
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|
|
elif osname[:5] == "sunos":
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|
|
if release[0] >= "5": # SunOS 5 == Solaris 2
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|
|
osname = "solaris"
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|
|
release = "%d.%s" % (int(release[0]) - 3, release[2:])
|
2012-01-18 04:49:26 +01:00
|
|
|
# We can't use "platform.architecture()[0]" because a
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|
|
# bootstrap problem. We use a dict to get an error
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|
|
# if some suspicious happens.
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|
|
bitness = {2147483647:"32bit", 9223372036854775807:"64bit"}
|
2012-01-18 05:04:49 +01:00
|
|
|
machine += ".%s" % bitness[sys.maxsize]
|
2010-01-29 12:41:03 +01:00
|
|
|
# fall through to standard osname-release-machine representation
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|
|
elif osname[:3] == "aix":
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|
|
return "%s-%s.%s" % (osname, version, release)
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|
|
elif osname[:6] == "cygwin":
|
|
|
|
osname = "cygwin"
|
2013-10-12 00:24:55 +02:00
|
|
|
import re
|
2011-05-19 13:07:25 +02:00
|
|
|
rel_re = re.compile(r'[\d.]+')
|
2010-01-29 12:41:03 +01:00
|
|
|
m = rel_re.match(release)
|
|
|
|
if m:
|
|
|
|
release = m.group()
|
|
|
|
elif osname[:6] == "darwin":
|
2012-07-21 14:36:30 +02:00
|
|
|
import _osx_support
|
|
|
|
osname, release, machine = _osx_support.get_platform_osx(
|
|
|
|
get_config_vars(),
|
|
|
|
osname, release, machine)
|
2010-01-29 12:41:03 +01:00
|
|
|
|
|
|
|
return "%s-%s-%s" % (osname, release, machine)
|
|
|
|
|
|
|
|
|
|
|
|
def get_python_version():
|
|
|
|
return _PY_VERSION_SHORT
|
2010-05-25 11:44:36 +02:00
|
|
|
|
2011-05-19 13:07:25 +02:00
|
|
|
|
2010-05-25 11:44:36 +02:00
|
|
|
def _print_dict(title, data):
|
|
|
|
for index, (key, value) in enumerate(sorted(data.items())):
|
|
|
|
if index == 0:
|
2011-05-19 13:07:25 +02:00
|
|
|
print('%s: ' % (title))
|
|
|
|
print('\t%s = "%s"' % (key, value))
|
|
|
|
|
2010-05-25 11:44:36 +02:00
|
|
|
|
|
|
|
def _main():
|
2010-11-22 02:19:20 +01:00
|
|
|
"""Display all information sysconfig detains."""
|
2011-10-18 17:52:24 +02:00
|
|
|
if '--generate-posix-vars' in sys.argv:
|
|
|
|
_generate_posix_vars()
|
|
|
|
return
|
2011-05-19 13:07:25 +02:00
|
|
|
print('Platform: "%s"' % get_platform())
|
|
|
|
print('Python version: "%s"' % get_python_version())
|
|
|
|
print('Current installation scheme: "%s"' % _get_default_scheme())
|
2011-05-25 18:21:43 +02:00
|
|
|
print()
|
2010-05-25 11:44:36 +02:00
|
|
|
_print_dict('Paths', get_paths())
|
2011-05-19 13:07:25 +02:00
|
|
|
print()
|
2010-05-25 11:44:36 +02:00
|
|
|
_print_dict('Variables', get_config_vars())
|
|
|
|
|
2011-05-19 13:07:25 +02:00
|
|
|
|
2010-05-25 11:44:36 +02:00
|
|
|
if __name__ == '__main__':
|
|
|
|
_main()
|