class Config(Constants):
# exists
A = const('a')
# default
B = const('b', default=b)
# nothing
C = const('c')
# different error
D = const('d', default='x')
def provide_const(self, name, arg):
if arg == 'd':
raise Exception()
return dict(a=a)[arg]
class Conf(Constants):
TEST = const('1')
def provide_const(self,
key,
arg,
service: Provide[MyService] = None):
assert isinstance(service, MyService)
return key
class Config(Constants):
# with str/int/float, the type hint is enforced. Can be removed or extend to
# support Enums.
IMDB_HOST = const[str]('imdb.host')
IMDB_PORT = const[int]('imdb.port')
IMDB_API_KEY = const('imdb.api_key')
def __init__(self):
self._raw_conf = {
'imdb': {
'host': 'dummy_host',
'api_key': 'dummy_api_key',
'port': '80'
}
}
def provide_const(self, name: str, arg: str):
root, key = arg.split('.')
return self._raw_conf[root][key]
class Conf(Constants):
TEST = const('1')
def provide_const(self, key, arg):
return key
class Config(Constants):
A = const('a')
B = const('b')
def provide_const(self, name, arg):
return arg * 2
class Config(Constants):
A = const('a')
class Config(Constants):
NOTHING = const()
B = const("B")
class Config(Constants):
A = const()
B = const()
def provide_const(self, name, arg):
return name
class Config(Constants):
DB_HOST = const('localhost:5432')