def test_lazyimport(self):
from stuf.six import callable
from stuf.utils import lazyimport
fsum = lazyimport('math.fsum')
self.assertTrue(callable(fsum))
fsum = lazyimport('math', 'fsum')
self.assertTrue(callable(fsum))
def _load(self, destination, conf):
# load configuration
if isstring(conf):
# load import
conf = lazyimport(conf)
if isinstance(conf, _BaseFactory):
# load configuration from factory
destination.update(i for i in conf)
elif isclass(conf):
# load configuration from class
newconf = {}
xpartmap(
lambda x, y: x({y.pop('classname', 'options'): y}),
iter(lazyknife(conf).traverse().attrs('maps').merge()),
newconf.update,
)
destination.update(newconf)
def store_backend(uri, **kw):
'''
Loads the right store backend based on a URI.
:argument uri: instance or name :class:`str`
'''
if isinstance(uri, strings):
mod = stores[uri.split('://', 1)[0]]
# load module if setuptools not present
if isinstance(mod, strings):
# isolate classname from dot path
module, klass = mod.split(':')
# load module
mod = lazyimport(module, klass)
# load appropriate class from setuptools entry point
else:
mod = mod.load()
# return instance
return mod(uri, **kw)
# no-op for existing instances
return uri
def store_backend(uri, **kw):
'''
Loads the right store backend based on a URI.
:argument uri: instance or name :class:`str`
'''
if isinstance(uri, strings):
mod = stores[uri.split('://', 1)[0]]
# load module if setuptools not present
if isinstance(mod, strings):
# isolate classname from dot path
module, klass = mod.split(':')
# load module
mod = lazyimport(module, klass)
# load appropriate class from setuptools entry point
else:
mod = mod.load()
# return instance
return mod(uri, **kw)
# no-op for existing instances
return uri
