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Uma biblioteca inspirada em Rust e Kotlin para lidar com Option, println colorido e utilitários.

Project description

[koruspy version 0.2.9 ChangeLog]:

- `get_value()` was remastered. Previously overlapping in responsibility with `finalize()`, it now returns a new `Option` (`Some` or `nothing`) instead of a raw value.

[koruspy versão 0.2.9 quadro de mudanças]:

- a função `get_value()` foi remasterizada. antes sobreposta pela função `finalize()`, agora retornando um novo objeto `Option` (`Some` ou `nothing`), ao invés de um valor cru.

🦀 Koruspy

Koruspy é uma biblioteca ultra-leve que traz a segurança do Rust e a elegância do Kotlin para o ecossistema Python.

Desenvolvida inteiramente via Termux, esta biblioteca elimina a necessidade de verificações manuais de None e blocos try/except repetitivos, utilizando o poder do Pattern Matching (Python 3.10+) e programação funcional.


🚀 Diferenciais

Zero NoneErrors: Use Option (Some ou nothing) para lidar com valores ausentes.

Result Pattern: Trate sucessos e falhas como dados, não como exceções que quebram o código.

Estilo Kotlin: Métodos encadeáveis como .map(), .Filter(), .and_then() e o operador de navegação segura .getattr().

Pipeline seguro: option_of agora trata corretamente None e nothing, preservando valores falsy como 0 e False.

Finalização clara: .finalize() encerra pipelines que já têm valor garantido.

Fallback elegante: .unwrap_or(default) e .unwrap_or_else(func) fornecem valores quando necessário.

Terminal Colorido: Substitua o print padrão pelo println com suporte a tipos e cores ANSI.


📦 Instalação

Como você está desenvolvendo no Termux ou em ambiente mobile, instale via modo editável:

pip install -e .


📝 Exemplos 2.9

option_of trata None e nothing, preservando falsy

from koruspy import Some, nothing, option_of, println


idade = option_of(0, 18)
println(idade)  # Some(0)

idade2 = option_of(None, 18)
println(idade2)  # Some(18)

Pipeline com Filter e finalize

idade_valida = (
    option_of(idade2, 0)
    .get_value()
    .Filter(lambda x: x >= 18)
    .on_nothing(lambda: println("valor inválido"))
    .finalize()
)
println(idade_valida)

Fallbacks

val = option_of(None).unwrap_or(42)
println(val)  # 42

val2 = option_of(None).unwrap_or_else(lambda: 99)
println(val2)  # 99

função get_value():

from koruspy import option_of

arquivos = ["config.yaml", "", None, "dados.json"]

for nome in arquivos:
    opt = option_of(nome)

    resultado = (
        opt
        .get_value()                      # 👈 retorna Option
        .Filter(lambda x: x.endswith((".yaml", ".json")))
        .map(lambda x: x.upper())
    )

    print(resultado)

Regra de ouro: Use get_value() para permanecer dentro do pipeline Option. Use finalize() para sair do pipeline e obter o valor crua.

English Version 🇺🇸🇬🇧:

🦀 Koruspy

Koruspy is an ultra-lightweight library that brings Rust’s safety and Kotlin’s elegance to the Python ecosystem.

Developed entirely via Termux, this library removes the need for manual None checks and repetitive try/except blocks by leveraging the power of Pattern Matching (Python 3.10+) and functional programming.


🚀 Highlights

Zero NoneErrors: Use Option (Some or nothing) to safely handle missing values.

Result Pattern: Handle success and failure as data, not as exceptions that break control flow.

Kotlin-style API: Chainable methods like .map(), .Filter(), .and_then(), and the safe navigation operator .getattr().

Safe pipeline: option_of now correctly handles None and nothing, while preserving falsy values such as 0 and False.

Clear finalization: .finalize() terminates pipelines when a value is guaranteed.

Elegant fallbacks: .unwrap_or(default) and .unwrap_or_else(func) provide values when needed.

Colored terminal output: Replace the standard print with println, with type-aware ANSI color support.


📦 Installation

If you are developing on Termux or in a mobile environment, install using editable mode:

pip install -e .


📝 Examples 2.9

option_of handles None and nothing, preserving falsy values

from koruspy import Some, nothing, option_of, println


age = option_of(0, 18)
println(age)  # Some(0)

age2 = option_of(None, 18)
println(age2)  # Some(18)

Pipeline with Filter and finalize

valid_age = (
    option_of(age2, 0)
    .get_value()
    .Filter(lambda x: x >= 18)
    .on_nothing(lambda: println("invalid value"))
    .finalize()
)
println(valid_age)

Fallbacks

val = option_of(None).unwrap_or(42)
println(val)  # 42

val2 = option_of(None).unwrap_or_else(lambda: 99)
println(val2)  # 99

function get_value():

from koruspy import option_of

user_inputs = ["42", "", None, "abc"]

for value in user_inputs:
    result = (
        option_of(value)
        .get_value()                 # 👈 returns a new Option
        .map(int)
        .Filter(lambda x: x > 0)
    )

    print(result)

Rule of thumb: Use get_value() to stay inside the Option pipeline. Use finalize() to exit the pipeline and retrieve the raw value.

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