mypy-play

from collections.abc import Callable
from typing import Protocol, TypeVar

class TGCStatsInfo(Protocol):
    gen: int
    iid: int
    
class TInstantMsg(Protocol):
    type: str
    name: str

mypy-play

from typing import (
    Generic,
    Literal,
    TypeAlias,
    overload,
)

from typing_extensions import (
    TypeVar,
)

mypy-play

from enum import StrEnum, auto
from dataclasses import dataclass

class E(StrEnum):
    A = auto()
    B = auto()
    
@dataclass()
class D:
    e: E

mypy-play

#!/usr/bin/env python3

import sys

# Version check - must be first
if sys.version_info < (3, 14):
    logger.info(f"Error: This script requires Python 3.14 or higher. Current version: {sys.version_info.major}.{sys.version_info.minor}")
    sys.exit(1)

import asyncio

mypy-play

from typing import TypeVar
from functools import singledispatch

#T = TypeVar("T", bound=str | int)  # should give errors
T = TypeVar("T", str, int)  # should work

@singledispatch
def times_two(v: T) -> T:
    raise NotImplementedError

mypy-play

import signal

1 in (i for i in (signal.SIGINT,))
1 in [i for i in (signal.SIGINT,)]

mypy-play

import signal

1 in (i for i in (signal.SIGINT,))
1 in [i for i in (signal.SIGINT,)]

mypy-play

import dataclasses
from functools import partial
from typing import TYPE_CHECKING, TypeAlias

if TYPE_CHECKING:
    from dataclasses import dataclass as frozen_nan_safe
else:
    def frozen_nan_safe(**kwargs):
        assert kwargs['frozen']
        return dataclasses.dataclass(**kwargs)

mypy-play

import dataclasses
from functools import partial
from typing import TYPE_CHECKING

if TYPE_CHECKING:
    frozen_nan_safe = dataclasses.dataclass
else:
    frozen_nan_safe = partial(dataclasses.dataclass, frozen=True)
    
def test_frozen_decorator() -> None:

mypy-play

from typing import Callable, Protocol

### Example 1: Works as intended. The method is decorated and is
### callable as usual.

def decorate_method[T](method: Callable[[T], None]) -> Callable[[T], None]:
    def _inner(_self: T) -> None:
        print('Decorated!')
        method(_self)