def _load_backend(_backend, _platform):
"""load a process backend"""
name = None
_has_all = False
try:
name = __name__ + '.' + _platform
mod = __import__(name, {}, {}, [_platform])
#validate the module interface
if not IKittProcModule.providedBy(mod):
e = ImportError("%s does not implement IKittProcModule interface" \
% name)
raise e #throw exception as an import error
if '__all__' in vars(mod):
_EXPORTED.update(set(mod.__all__))
_has_all = True
for var, obj in vars(mod).items():
if hasattr(obj, '__class__') and var in _process_interfaces:
#demonstrate you at least read the implementation
if not _process_interfaces[var].implementedBy(obj):
e = 'Class [%s] from %s does not match interface' % \
(var,name)
warnings.warn(e)
continue
#update our namespace
globals().update({var: obj})
if _has_all: continue
#add to exported interfaces
if not var.startswith('_'):
_EXPORTED.add(var)
except ImportError: raise
except AssertionError: pass
except: traceback.print_exc()
def _load_backend(_backend, _platform):
"""load a process backend"""
name = None
_has_all = False
try:
name = __name__ + '.' + _platform
mod = __import__(name, {}, {}, [_platform])
#validate the module interface
if not IKittProcModule.providedBy(mod):
e = ImportError("%s does not implement IKittProcModule interface" \
% name)
raise e #throw exception as an import error
if '__all__' in vars(mod):
_EXPORTED.update(set(mod.__all__))
_has_all = True
for var, obj in vars(mod).items():
if hasattr(obj, '__class__') and var in _process_interfaces:
#demonstrate you at least read the implementation
if not _process_interfaces[var].implementedBy(obj):
e = 'Class [%s] from %s does not match interface' % \
(var,name)
warnings.warn(e)
continue
#update our namespace
globals().update({var: obj})
if _has_all: continue
#add to exported interfaces
if not var.startswith('_'):
_EXPORTED.add(var)
except ImportError:
raise
except AssertionError:
pass
except:
traceback.print_exc()
_platform = platform.system()
_backend = os.path.join(os.path.abspath(os.path.dirname(__file__)),
_platform + '.py'
)
#exportable interfaces
_EXPORTED = set(_process_interfaces.keys() + _required_methods)
if os.path.exists(_backend):
name = None
_has_all = False
try:
name = __name__ + '.' + _platform
mod = __import__(name, {}, {}, [_platform])
mod.InvalidProcess = InvalidProcess #for compatibility
#validate the module interface
if not IKittProcModule.providedBy(mod):
e = ImportError("%s does not implement IKittProcModule interface" \
% name)
raise e #throw exception as an import error
if '__all__' in vars(mod):
_EXPORTED.update(set(mod.__all__))
_has_all = True
for var, obj in vars(mod).items():
if hasattr(obj, '__class__') and var in _process_interfaces:
#demonstrate you at least read the implementation
if not _process_interfaces[var].implementedBy(obj):
e = 'Class [%s] from %s does not match interface' % \
(var,name)
warnings.warn(e)
continue
#update our namespace