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random.pyi
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random.pyi
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import _random
import sys
from _typeshed import SupportsLenAndGetItem
from collections.abc import Callable, Iterable, MutableSequence, Sequence, Set as AbstractSet
from fractions import Fraction
from typing import Any, ClassVar, NoReturn, TypeVar
__all__ = [
"Random",
"seed",
"random",
"uniform",
"randint",
"choice",
"sample",
"randrange",
"shuffle",
"normalvariate",
"lognormvariate",
"expovariate",
"vonmisesvariate",
"gammavariate",
"triangular",
"gauss",
"betavariate",
"paretovariate",
"weibullvariate",
"getstate",
"setstate",
"getrandbits",
"choices",
"SystemRandom",
]
if sys.version_info >= (3, 9):
__all__ += ["randbytes"]
if sys.version_info >= (3, 12):
__all__ += ["binomialvariate"]
_T = TypeVar("_T")
class Random(_random.Random):
VERSION: ClassVar[int]
def __init__(self, x: Any = None) -> None: ...
# Using other `seed` types is deprecated since 3.9 and removed in 3.11
# Ignore Y041, since random.seed doesn't treat int like a float subtype. Having an explicit
# int better documents conventional usage of random.seed.
if sys.version_info >= (3, 9):
def seed(self, a: int | float | str | bytes | bytearray | None = None, version: int = 2) -> None: ... # type: ignore[override] # noqa: Y041
else:
def seed(self, a: Any = None, version: int = 2) -> None: ...
def getstate(self) -> tuple[Any, ...]: ...
def setstate(self, state: tuple[Any, ...]) -> None: ...
def randrange(self, start: int, stop: int | None = None, step: int = 1) -> int: ...
def randint(self, a: int, b: int) -> int: ...
if sys.version_info >= (3, 9):
def randbytes(self, n: int) -> bytes: ...
def choice(self, seq: SupportsLenAndGetItem[_T]) -> _T: ...
def choices(
self,
population: SupportsLenAndGetItem[_T],
weights: Sequence[float | Fraction] | None = None,
*,
cum_weights: Sequence[float | Fraction] | None = None,
k: int = 1,
) -> list[_T]: ...
if sys.version_info >= (3, 11):
def shuffle(self, x: MutableSequence[Any]) -> None: ...
else:
def shuffle(self, x: MutableSequence[Any], random: Callable[[], float] | None = None) -> None: ...
if sys.version_info >= (3, 11):
def sample(self, population: Sequence[_T], k: int, *, counts: Iterable[int] | None = None) -> list[_T]: ...
elif sys.version_info >= (3, 9):
def sample(
self, population: Sequence[_T] | AbstractSet[_T], k: int, *, counts: Iterable[int] | None = None
) -> list[_T]: ...
else:
def sample(self, population: Sequence[_T] | AbstractSet[_T], k: int) -> list[_T]: ...
def uniform(self, a: float, b: float) -> float: ...
def triangular(self, low: float = 0.0, high: float = 1.0, mode: float | None = None) -> float: ...
if sys.version_info >= (3, 12):
def binomialvariate(self, n: int = 1, p: float = 0.5) -> int: ...
def betavariate(self, alpha: float, beta: float) -> float: ...
if sys.version_info >= (3, 12):
def expovariate(self, lambd: float = 1.0) -> float: ...
else:
def expovariate(self, lambd: float) -> float: ...
def gammavariate(self, alpha: float, beta: float) -> float: ...
if sys.version_info >= (3, 11):
def gauss(self, mu: float = 0.0, sigma: float = 1.0) -> float: ...
def normalvariate(self, mu: float = 0.0, sigma: float = 1.0) -> float: ...
else:
def gauss(self, mu: float, sigma: float) -> float: ...
def normalvariate(self, mu: float, sigma: float) -> float: ...
def lognormvariate(self, mu: float, sigma: float) -> float: ...
def vonmisesvariate(self, mu: float, kappa: float) -> float: ...
def paretovariate(self, alpha: float) -> float: ...
def weibullvariate(self, alpha: float, beta: float) -> float: ...
# SystemRandom is not implemented for all OS's; good on Windows & Linux
class SystemRandom(Random):
def getrandbits(self, k: int) -> int: ... # k can be passed by keyword
def getstate(self, *args: Any, **kwds: Any) -> NoReturn: ...
def setstate(self, *args: Any, **kwds: Any) -> NoReturn: ...
_inst: Random
seed = _inst.seed
random = _inst.random
uniform = _inst.uniform
triangular = _inst.triangular
randint = _inst.randint
choice = _inst.choice
randrange = _inst.randrange
sample = _inst.sample
shuffle = _inst.shuffle
choices = _inst.choices
normalvariate = _inst.normalvariate
lognormvariate = _inst.lognormvariate
expovariate = _inst.expovariate
vonmisesvariate = _inst.vonmisesvariate
gammavariate = _inst.gammavariate
gauss = _inst.gauss
if sys.version_info >= (3, 12):
binomialvariate = _inst.binomialvariate
betavariate = _inst.betavariate
paretovariate = _inst.paretovariate
weibullvariate = _inst.weibullvariate
getstate = _inst.getstate
setstate = _inst.setstate
getrandbits = _inst.getrandbits
if sys.version_info >= (3, 9):
randbytes = _inst.randbytes