nofuture 1.0.1

NoFuture: explicit Maybe and Result types. No futures. No exceptions.

NoFuture

No futures. No exceptions. Just explicit values.

MayBe et Result pour Python, built en Rust (PyO3 + maturin).

from nofut import MayBe, Result

Installation

pip install nofuture

Dev mode: maturin develop

MayBe

Valeur optionnelle: Just(value) ou Nothing.

MayBe.just(42)      # Just(42)
MayBe.nothing()     # Nothing

# API
.is_just() / .is_nothing()
.unwrap()           # raise si Nothing
.or_else(default)   # valeur ou default
.map(fn)            # Just(fn(x)) ou Nothing
.flat_map(fn)       # fn doit retourner MayBe
>> fn               # flat_map
| default           # or_else

Result

Succès ou erreur: Ok(value) ou Err(message, code?, details?). La vie en binaire, avec du contexte.

Result.ok(42)
Result.err("not found", code="NOT_FOUND")
Result.err("validation", code="INVALID", details={"field": "name"})

# API
.is_ok() / .is_err()
.unwrap()           # raise si Err
.unwrap_or(default) # valeur ou default
.unwrap_err()       # (msg, code, details) ou raise
.map(fn)            # Ok(fn(x)) ou Err passthrough
.map_err(fn)        # fn(msg, code, details) -> (msg, code, details)
.flat_map(fn)       # fn doit retourner Result
.and_then(fn)       # alias flat_map
.to_dict()          # {"ok": True, "value": ...} ou {"ok": False, "error": ...}
>> fn               # flat_map
| default           # unwrap_or

Exemples

Exemples progressifs (basics -> objets -> pipeline Result).

python3 examples/base.py
python3 examples/abc.py
python3 examples/result.py

Tests

python3 -m unittest discover -s tests -p 'test_*.py'

Licence

GPLv3 - voir LICENSE