我们从Python开源项目中，提取了以下50个代码示例，用于说明如何使用sysconfig.get_config_var()。
def _patch_pyimport(fspath, **kwargs): ext_suffix = sysconfig.get_config_var("EXT_SUFFIX") # XXX EXT_SUFFIX is None for pypy (python2.7) if ext_suffix is None and '.pypy' not in fspath.basename: return fspath.pyimport(**kwargs) else: # XXX EXT_SUFFIX is None for pypy (python2.7) if '.pypy' in fspath.basename: ext_suffix = fspath.ext basename = fspath.basename.split('.')[0] fspath = fspath.new(purebasename=basename, ext=fspath.ext) pkgroot = fspath.dirpath() fspath._ensuresyspath(True, pkgroot) names = fspath.relto(pkgroot).split(fspath.sep) modname = ".".join(names).replace(ext_suffix, "") __import__(modname) return sys.modules[modname]
def getusersitepackages(): """Returns the user-specific site-packages directory path. If the global variable ``USER_SITE`` is not initialized yet, this function will also set it. """ global USER_SITE user_base = getuserbase() # this will also set USER_BASE if USER_SITE is not None: return USER_SITE from sysconfig import get_path import os if sys.platform == 'darwin': from sysconfig import get_config_var if get_config_var('PYTHONFRAMEWORK'): USER_SITE = get_path('purelib', 'osx_framework_user') return USER_SITE USER_SITE = get_path('purelib', '%s_user' % os.name) return USER_SITE
def _get_xxmodule_path(): # FIXME when run from regrtest, srcdir seems to be '.', which does not help # us find the xxmodule.c file srcdir = sysconfig.get_config_var('srcdir') candidates = [ # use installed copy if available os.path.join(os.path.dirname(__file__), 'xxmodule.c'), # otherwise try using copy from build directory os.path.join(srcdir, 'Modules', 'xxmodule.c'), # srcdir mysteriously can be $srcdir/Lib/distutils/tests when # this file is run from its parent directory, so walk up the # tree to find the real srcdir os.path.join(srcdir, '..', '..', '..', 'Modules', 'xxmodule.c'), ] for path in candidates: if os.path.exists(path): return path
def test_sysconfig_compiler_vars(self): # On OS X, binary installers support extension module building on # various levels of the operating system with differing Xcode # configurations. This requires customization of some of the # compiler configuration directives to suit the environment on # the installed machine. Some of these customizations may require # running external programs and, so, are deferred until needed by # the first extension module build. With Python 3.3, only # the Distutils version of sysconfig is used for extension module # builds, which happens earlier in the Distutils tests. This may # cause the following tests to fail since no tests have caused # the global version of sysconfig to call the customization yet. # The solution for now is to simply skip this test in this case. # The longer-term solution is to only have one version of sysconfig. import sysconfig as global_sysconfig if sysconfig.get_config_var('CUSTOMIZED_OSX_COMPILER'): self.skipTest('compiler flags customized') self.assertEqual(global_sysconfig.get_config_var('LDSHARED'), sysconfig.get_config_var('LDSHARED')) self.assertEqual(global_sysconfig.get_config_var('CC'), sysconfig.get_config_var('CC'))
def get_soabi(): soabi = None try: soabi = sysconfig.get_config_var('SOABI') arch = sysconfig.get_config_var('MULTIARCH') except IOError: pass if soabi and arch and 'pypy' in sysconfig.get_scheme_names(): soabi = '%s-%s' % (soabi, arch) if soabi is None and 'pypy' in sysconfig.get_scheme_names(): # NOTE(sigmavirus24): PyPy only added support for the SOABI config var # to sysconfig in 2015. That was well after 2.2.1 was published in the # Ubuntu 14.04 archive. for suffix, _, _ in imp.get_suffixes(): if suffix.startswith('.pypy') and suffix.endswith('.so'): soabi = suffix.split('.')[1] break return soabi
def get_config_var(var): try: return sysconfig.get_config_var(var) except IOError as e: # Issue #1074 warnings.warn("{0}".format(e), RuntimeWarning) return None
def get_impl_ver(): """Return implementation version.""" impl_ver = get_config_var("py_version_nodot") if not impl_ver or get_abbr_impl() == 'pp': impl_ver = ''.join(map(str, get_impl_version_info())) return impl_ver
def get_flag(var, fallback, expected=True, warn=True): """Use a fallback method for determining SOABI flags if the needed config var is unset or unavailable.""" val = get_config_var(var) if val is None: if warn: logger.debug("Config variable '%s' is unset, Python ABI tag may " "be incorrect", var) return fallback() return val == expected
def get_abi_tag(): """Return the ABI tag based on SOABI (if available) or emulate SOABI (CPython 2, PyPy).""" soabi = get_config_var('SOABI') impl = get_abbr_impl() if not soabi and impl in ('cp', 'pp') and hasattr(sys, 'maxunicode'): d = '' m = '' u = '' if get_flag('Py_DEBUG', lambda: hasattr(sys, 'gettotalrefcount'), warn=(impl == 'cp')): d = 'd' if get_flag('WITH_PYMALLOC', lambda: impl == 'cp', warn=(impl == 'cp')): m = 'm' if get_flag('Py_UNICODE_SIZE', lambda: sys.maxunicode == 0x10ffff, expected=4, warn=(impl == 'cp' and sys.version_info < (3, 3))) \ and sys.version_info < (3, 3): u = 'u' abi = '%s%s%s%s%s' % (impl, get_impl_ver(), d, m, u) elif soabi and soabi.startswith('cpython-'): abi = 'cp' + soabi.split('-')[1] elif soabi: abi = soabi.replace('.', '_').replace('-', '_') else: abi = None return abi
def get_config_var(var): try: return sysconfig.get_config_var(var) except IOError as e: # pip Issue #1074 warnings.warn("{0}".format(e), RuntimeWarning) return None
def get_flag(var, fallback, expected=True, warn=True): """Use a fallback method for determining SOABI flags if the needed config var is unset or unavailable.""" val = get_config_var(var) if val is None: if warn: warnings.warn("Config variable '{0}' is unset, Python ABI tag may " "be incorrect".format(var), RuntimeWarning, 2) return fallback() return val == expected
def pytest_collect_file(path, parent): bin_exts = ['.so'] cy_exts = ['.pyx', '.py'] # collect .so files if .py file exists ext_suffix = sysconfig.get_config_var("EXT_SUFFIX") config = parent.config if path.ext in bin_exts: if config.getoption('--doctest-cython'): if ext_suffix is None: bin_file = path # XXX EXT_SUFFIX is None for pypy (python2.7) if '.pypy' in path.basename: basename = path.basename.split('.')[0] bin_file = path.new(purebasename=basename, ext=path.ext) else: basename = path.basename.replace(ext_suffix, "") bin_file = path.new(purebasename=basename, ext=path.ext) pyx_file = _find_matching_pyx_file(bin_file, cy_exts) # only run test if matching .so and .pyx files exist # create addoption for this ?? if pyx_file is not None: return DoctestModule(path, parent) # XXX patch pyimport to support PEP 3149
def getuserbase(): """Returns the `user base` directory path. The `user base` directory can be used to store data. If the global variable ``USER_BASE`` is not initialized yet, this function will also set it. """ global USER_BASE if USER_BASE is not None: return USER_BASE from sysconfig import get_config_var USER_BASE = get_config_var('userbase') return USER_BASE
def getsitepackages(): """Returns a list containing all global site-packages directories (and possibly site-python). For each directory present in the global ``PREFIXES``, this function will find its `site-packages` subdirectory depending on the system environment, and will return a list of full paths. """ sitepackages = [] seen = set() for prefix in PREFIXES: if not prefix or prefix in seen: continue seen.add(prefix) if sys.platform in ('os2emx', 'riscos'): sitepackages.append(os.path.join(prefix, "Lib", "site-packages")) elif os.sep == '/': sitepackages.append(os.path.join(prefix, "lib", "python" + sys.version[:3], "site-packages")) sitepackages.append(os.path.join(prefix, "lib", "site-python")) else: sitepackages.append(prefix) sitepackages.append(os.path.join(prefix, "lib", "site-packages")) if sys.platform == "darwin": # for framework builds *only* we add the standard Apple # locations. from sysconfig import get_config_var framework = get_config_var("PYTHONFRAMEWORK") if framework and "/%s.framework/"%(framework,) in prefix: sitepackages.append( os.path.join("/Library", framework, sys.version[:3], "site-packages")) return sitepackages
def get_config_var(var): try: return sysconfig.get_config_var(var) except IOError as e: # Issue #1074 warnings.warn("{}".format(e), RuntimeWarning) return None
def get_abi_tag(): """Return the ABI tag based on SOABI (if available) or emulate SOABI (CPython 2, PyPy).""" soabi = get_config_var('SOABI') impl = get_abbr_impl() if not soabi and impl in {'cp', 'pp'} and hasattr(sys, 'maxunicode'): d = '' m = '' u = '' if get_flag('Py_DEBUG', lambda: hasattr(sys, 'gettotalrefcount'), warn=(impl == 'cp')): d = 'd' if get_flag('WITH_PYMALLOC', lambda: impl == 'cp', warn=(impl == 'cp')): m = 'm' if get_flag('Py_UNICODE_SIZE', lambda: sys.maxunicode == 0x10ffff, expected=4, warn=(impl == 'cp' and sys.version_info < (3, 3))) \ and sys.version_info < (3, 3): u = 'u' abi = '%s%s%s%s%s' % (impl, get_impl_ver(), d, m, u) elif soabi and soabi.startswith('cpython-'): abi = 'cp' + soabi.split('-')[1] elif soabi: abi = soabi.replace('.', '_').replace('-', '_') else: abi = None return abi
def get_impl_ver(): """Return implementation version.""" impl_ver = sysconfig.get_config_var("py_version_nodot") if not impl_ver: impl_ver = ''.join(map(str, sys.version_info[:2])) return impl_ver
