def descriptor_classes():
"""A generator of descriptor classes in this module, preserving the
order of definition.
"""
# dir() returns names in alphabetical order
decorated = []
for key in dir(module):
cls = getattr(module, key)
try:
assert IModelDescriptor.implementedBy(cls)
# we decorate with the source code line number for the cls
decorated.append((inspect.getsourcelines(cls)[1], cls))
except (TypeError, AttributeError, AssertionError):
debug.log_exc(sys.exc_info(), log_handler=log.debug)
# we yield each cls in order of definition
for cls in [ cls for (line_num, cls) in sorted(decorated) ]:
yield cls
def descriptor_classes():
"""A generator of descriptor classes in this module, preserving the
order of definition.
"""
# dir() returns names in alphabetical order
decorated = []
for key in dir(module):
cls = getattr(module, key)
try:
assert IModelDescriptor.implementedBy(cls)
# we decorate with the source code line number for the cls
decorated.append((inspect.getsourcelines(cls)[1], cls))
except (TypeError, AttributeError, AssertionError):
debug.log_exc(sys.exc_info(), log_handler=log.debug)
# we yield each cls in order of definition
for cls in [ cls for (line_num, cls) in sorted(decorated) ]:
yield cls
def is_descriptor(cls):
try:
return IModelDescriptor.implementedBy(cls)
except (TypeError, AttributeError):
return False
'''
def is_descriptor(cls):
try:
return IModelDescriptor.implementedBy(cls)
except (TypeError, AttributeError):
return False
'''
