本文整理匯總了Python中pkgutil._get_spec方法的典型用法代碼示例。如果您正苦於以下問題：Python pkgutil._get_spec方法的具體用法？Python pkgutil._get_spec怎麽用？Python pkgutil._get_spec使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類pkgutil的用法示例。
在下文中一共展示了pkgutil._get_spec方法的3個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的Python代碼示例。
示例1: run
# 需要導入模塊: import pkgutil [as 別名]
# 或者: from pkgutil import _get_spec [as 別名]
def run(self, callback, key=None, completer=None, onerror=None):
if key: key = key.lower()
self.quit = False
seen = {}
for modname in sys.builtin_module_names:
if modname != '__main__':
seen[modname] = 1
if key is None:
callback(None, modname, '')
else:
name = __import__(modname).__doc__ or ''
desc = name.split('\n')[0]
name = modname + ' - ' + desc
if name.lower().find(key) >= 0:
callback(None, modname, desc)
for importer, modname, ispkg in pkgutil.walk_packages(onerror=onerror):
if self.quit:
break
if key is None:
callback(None, modname, '')
else:
try:
spec = pkgutil._get_spec(importer, modname)
except SyntaxError:
# raised by tests for bad coding cookies or BOM
continue
loader = spec.loader
if hasattr(loader, 'get_source'):
try:
source = loader.get_source(modname)
except Exception:
if onerror:
onerror(modname)
continue
desc = source_synopsis(io.StringIO(source)) or ''
if hasattr(loader, 'get_filename'):
path = loader.get_filename(modname)
else:
path = None
else:
try:
module = importlib._bootstrap._load(spec)
except ImportError:
if onerror:
onerror(modname)
continue
desc = module.__doc__.splitlines()[0] if module.__doc__ else ''
path = getattr(module,'__file__',None)
name = modname + ' - ' + desc
if name.lower().find(key) >= 0:
callback(path, modname, desc)
if completer:
completer() 示例2: test_iter_importers
# 需要導入模塊: import pkgutil [as 別名]
# 或者: from pkgutil import _get_spec [as 別名]
def test_iter_importers(self):
iter_importers = pkgutil.iter_importers
get_importer = pkgutil.get_importer
pkgname = 'spam'
modname = 'eggs'
dirname = self.create_init(pkgname)
pathitem = os.path.join(dirname, pkgname)
fullname = '{}.{}'.format(pkgname, modname)
sys.modules.pop(fullname, None)
sys.modules.pop(pkgname, None)
try:
self.create_submodule(dirname, pkgname, modname, 0)
importlib.import_module(fullname)
importers = list(iter_importers(fullname))
expected_importer = get_importer(pathitem)
for finder in importers:
spec = pkgutil._get_spec(finder, fullname)
loader = spec.loader
try:
loader = loader.loader
except AttributeError:
# For now we still allow raw loaders from
# find_module().
pass
self.assertIsInstance(finder, importlib.machinery.FileFinder)
self.assertEqual(finder, expected_importer)
self.assertIsInstance(loader,
importlib.machinery.SourceFileLoader)
self.assertIsNone(pkgutil._get_spec(finder, pkgname))
with self.assertRaises(ImportError):
list(iter_importers('invalid.module'))
with self.assertRaises(ImportError):
list(iter_importers('.spam'))
finally:
shutil.rmtree(dirname)
del sys.path[0]
try:
del sys.modules['spam']
del sys.modules['spam.eggs']
except KeyError:
pass 示例3: run
# 需要導入模塊: import pkgutil [as 別名]
# 或者: from pkgutil import _get_spec [as 別名]
def run(self, callback, key=None, completer=None, onerror=None):
if key: key = key.lower()
self.quit = False
seen = {}
for modname in sys.builtin_module_names:
if modname != '__main__':
seen[modname] = 1
if key is None:
callback(None, modname, '')
else:
name = __import__(modname).__doc__ or ''
desc = name.split('\n')[0]
name = modname + ' - ' + desc
if name.lower().find(key) >= 0:
callback(None, modname, desc)
for importer, modname, ispkg in pkgutil.walk_packages(onerror=onerror):
if self.quit:
break
if key is None:
callback(None, modname, '')
else:
try:
spec = pkgutil._get_spec(importer, modname)
except SyntaxError:
# raised by tests for bad coding cookies or BOM
continue
loader = spec.loader
if hasattr(loader, 'get_source'):
try:
source = loader.get_source(modname)
except Exception:
if onerror:
onerror(modname)
continue
desc = source_synopsis(io.StringIO(source)) or ''
if hasattr(loader, 'get_filename'):
path = loader.get_filename(modname)
else:
path = None
else:
_spec = importlib._bootstrap._SpecMethods(spec)
try:
module = _spec.load()
except ImportError:
if onerror:
onerror(modname)
continue
desc = module.__doc__.splitlines()[0] if module.__doc__ else ''
path = getattr(module,'__file__',None)
name = modname + ' - ' + desc
if name.lower().find(key) >= 0:
callback(path, modname, desc)
if completer:
completer()