mirror of
https://github.com/pocketpy/pocketpy
synced 2025-10-31 00:40:16 +00:00
84 lines
1.8 KiB
Python
84 lines
1.8 KiB
Python
from typing import Dict, Tuple, List
|
|
|
|
bill: Dict[str, float] = {
|
|
"apple": 3.14,
|
|
"watermelon": 15.92,
|
|
"pineapple": 6.53,
|
|
}
|
|
completed: Tuple[str] = ("DONE",)
|
|
succeeded: Tuple[int, str] = (1, "SUCCESS")
|
|
statuses: Tuple[str, ...] = (
|
|
"DONE", "SUCCESS", "FAILED", "ERROR",
|
|
)
|
|
codes: List[int] = (0, 1, -1, -2)
|
|
|
|
|
|
from typing import Union
|
|
|
|
def resp200(meaningful) -> Union[int, str]:
|
|
return "OK" if meaningful else 200
|
|
|
|
|
|
from typing import Self
|
|
|
|
class Employee:
|
|
name: str = "John Doe"
|
|
age: int = 0
|
|
|
|
def set_name(self: Self, name) -> Self:
|
|
self.name = name
|
|
return self
|
|
|
|
from typing import TypeVar, Type
|
|
|
|
T = TypeVar("T")
|
|
|
|
# "mapper" is a type, like int, str, MyClass and so on.
|
|
# "default" is an instance of type T, such as 314, "string", MyClass() and so on.
|
|
# returned is an instance of type T too.
|
|
def converter(raw, mapper: Type[T] = None, default: T = None) -> T:
|
|
try:
|
|
return mapper(raw)
|
|
except:
|
|
pass
|
|
return default
|
|
|
|
raw: str = '4'
|
|
result: int = converter(raw, mapper=int, default=0)
|
|
|
|
from typing import TypeVar, Callable, Any
|
|
|
|
T = TypeVar("T")
|
|
|
|
def converter(raw, mapper: Callable[[Any], T] = None, default: T = None) -> T:
|
|
try:
|
|
return mapper(raw)
|
|
except:
|
|
pass
|
|
return default
|
|
|
|
def is_success(value) -> bool:
|
|
return value in (0, "OK", True, "success")
|
|
|
|
resp = {'code': 0, 'message': 'OK', 'data': []}
|
|
successed: bool = converter(resp['message'], mapper=is_success, default=False)
|
|
|
|
|
|
class A:
|
|
x: List[Callable[[int], Any]]
|
|
y: Dict[str, int]
|
|
|
|
a = A()
|
|
assert not hasattr(a, 'x')
|
|
assert not hasattr(a, 'y')
|
|
|
|
class B:
|
|
x: List[Callable[[int], Any]] = []
|
|
y: Dict[str, int] = {}
|
|
|
|
b = B()
|
|
assert hasattr(b, 'x')
|
|
assert hasattr(b, 'y')
|
|
|
|
abc123: int
|
|
assert 'abc123' not in globals() |