Uma biblioteca inspirada em Rust e Kotlin para lidar com Option, println colorido e utilitรกrios.
Project description
๐ koruspy
High-Performance Functional Logic Library for Python
Functional programming patterns optimized for mobile environments and SmartIDE
๐ English Documentation
๐ฏ Overview
koruspy is a functional logic library designed for high performance in resource-constrained environments, particularly mobile devices and SmartIDE. Built with Cython acceleration at its core, koruspy provides robust Option and Result types, along with native performance optimizations that deliver up to 3x faster execution compared to pure Python implementations.
โจ Key Features
- ๐ฅ Native Cython Engine - Core functions compiled to C for maximum speed
- ๐ฆ Type-Safe Option & Result Types -
Some(value),nothing,Okay(value),Err(error), andAsyncOption(future) - โก 3x Performance Gain - Real mobile benchmarks: 0.017s โ 0.006s
- ๐ง Zero-Config Compilation - Built-in
setup_native()for seamless local compilation - ๐๏ธ Accessibility-First Design - ANSI colors optimized for OLED displays and astigmatism
- ๐ฑ Mobile-Optimized - Specifically tuned for SmartIDE and mobile Python environments
- ๐ High-Performance Collections -
SomeListoutperforms standard lists by up to 30% in filtering operations
๐ Evolution Timeline
koruspy has evolved through careful iteration to meet real-world mobile development needs:
โโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโ
โ ๐ฑ Phase 1: Foundations (Early Versions) โ
โ โข Result Module (Okay/Err) - First functional primitive โ
โ โข Replaced try/except with railway-oriented programming โ
โโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโ
โ
โโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโ
โ ๐ Phase 2: Option Types (Mid Versions) โ
โ โข Option Module (Some/nothing) - Safe null handling โ
โ โข AsyncOption - Async-aware functional operations โ
โโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโ
โ
โโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโ
โ ๐ Phase 3: Collections (v0.7.0) โ
โ โข SomeList - Fail-safe list with functional methods โ
โ โข Performance benchmarks showing 30% improvement โ
โโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโ
โ
โโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโ
โ โก Phase 4: Native Optimization (v0.6.1+) โ
โ โข Cython compilation for core functions โ
โ โข println() compiled to native C with libc โ
โ โข setup_native() for zero-config builds โ
โ โข 3x performance boost on mobile ARM processors โ
โโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโ
This evolution reflects koruspy's core philosophy: start with solid functional primitives, then optimize ruthlessly for real-world performance.
๐ Quick Start
Installation
pip install koruspy
Basic Setup with Native Compilation
import koruspy
# Compile native extensions automatically in your environment
koruspy.setup_native()
from koruspy import Some, nothing, Okay, Err, println
# Your high-performance code here
result = Some(42)
println(result)
โ Result Module
Railway-Oriented Programming in Python
The Result type provides a functional alternative to try/except blocks, enabling railway-oriented programming where success and failure paths are explicitly handled through type-safe patterns.
Why Result Over try/except?
Traditional Approach (try/except):
def divide(a, b):
try:
result = a / b
return result
except ZeroDivisionError as e:
print(f"Error: {e}")
return None
# Caller has to check for None
result = divide(10, 0)
if result is not None:
print(f"Result: {result}")
Functional Approach (Result):
from koruspy import Okay, Err
def divide(a, b):
if b == 0:
return Err("Cannot divide by zero")
return Okay(a / b)
# Type-safe pattern matching
match divide(10, 2):
case Okay(value):
print(f"Result: {value}")
case Err(error):
print(f"Error: {error}")
Okay(value) - Success Type
Represents a successful operation with a value:
from koruspy import Okay, Err, println
def parse_int(s):
try:
return Okay(int(s))
except ValueError:
return Err(f"'{s}' is not a valid integer")
result = parse_int("42")
println(result) # Output: Okay(42)
# Chaining operations
result = (parse_int("10")
.map(lambda x: x * 2)
.map(lambda x: x + 5))
println(result) # Output: Okay(25)
Err(error) - Failure Type
Represents a failed operation with an error message:
from koruspy import Okay, Err, println
def validate_age(age):
if age < 0:
return Err("Age cannot be negative")
if age > 150:
return Err("Age seems unrealistic")
return Okay(age)
result = validate_age(-5)
println(result) # Output: Err(Age cannot be negative)
# Error propagation
def process_user_age(age_str):
return (parse_int(age_str)
.and_then(validate_age)
.map(lambda age: f"Valid age: {age}"))
println(process_user_age("25")) # Output: Okay(Valid age: 25)
println(process_user_age("-5")) # Output: Err(Age cannot be negative)
println(process_user_age("abc")) # Output: Err('abc' is not a valid integer)
Railway-Oriented Programming Example
Result types enable clean error handling pipelines:
from koruspy import Okay, Err
def read_file(path):
try:
with open(path) as f:
return Okay(f.read())
except FileNotFoundError:
return Err(f"File not found: {path}")
def parse_json(content):
import json
try:
return Okay(json.loads(content))
except json.JSONDecodeError as e:
return Err(f"Invalid JSON: {e}")
def extract_name(data):
if "name" in data:
return Okay(data["name"])
return Err("Name field missing")
# Pipeline: read โ parse โ extract
result = (read_file("config.json")
.and_then(parse_json)
.and_then(extract_name))
match result:
case Okay(name):
print(f"User name: {name}")
case Err(error):
print(f"Pipeline failed: {error}")
When to Use Result vs Option
- Use Result when you need to know why something failed (error messages, context)
- Use Option when you only care about presence vs absence (value exists or doesn't)
from koruspy import Okay, Err, Some, nothing
# Result: Know why it failed
def divide(a, b):
if b == 0:
return Err("Division by zero")
return Okay(a / b)
# Option: Just check existence
def find_user(user_id):
users = {1: "Alice", 2: "Bob"}
if user_id in users:
return Some(users[user_id])
return nothing
๐ฆ Option Module
The Option type provides a type-safe way to handle optional values, eliminating None-related errors.
Some(value)
Represents a value that exists:
from koruspy import Some, nothing, println
user_name = Some("Alice")
println(user_name) # Output: Some(Alice)
# Pattern matching
match user_name:
case Some(name):
println(f"Hello, {name}!")
case _NoneOption():
println("No user found")
nothing
A singleton that represents the absence of a value (replaces None):
from koruspy import nothing, println
empty_result = nothing
println(empty_result) # Output: nothing
# Safe operations
def divide(a, b):
if b == 0:
return nothing
return Some(a / b)
result = divide(10, 0)
println(result) # Output: nothing (no exception!)
Note: nothing is a singleton instance. If you need to reference the class itself (for type checking or pattern matching), use _NoneOption().
AsyncOption(future)
Wraps asynchronous operations in a type-safe Option:
import asyncio
from koruspy import AsyncOption, println
async def fetch_data():
await asyncio.sleep(0.1)
return "Data loaded"
async def main():
future = fetch_data()
async_result = AsyncOption(future)
# The AsyncOption displays in vibrant purple (OLED-optimized)
println(async_result)
# Await the result
final_result = await async_result.resolve()
println(final_result) # Output: Some(Data loaded)
asyncio.run(main())
๐ Collection Module: SomeList (v0.7.0)
The SomeList is a fail-safe implementation of a Python list, inheriting from MutableSequence. It's designed to handle data pipelines without crashing.
Features
- Auto-Normalization: Accepts lists, tuples, sets, generators, or single values and converts them to a stable internal list
- Method Chaining:
.append(),.extend(), and.insert()returnself, allowing for fluent API calls - Safe Mapping:
.map(fn)returnsnothingif the function fails, keeping your app running - High Performance: Optimized for filtering and functional operations
from koruspy import SomeList, Some
# Safe chaining and functional operations
res = (SomeList([10, 20])
.append(30)
.map(lambda x: x * 2)
.sum()) # Output: 120
# Safe filtering
lista = SomeList([1, 2, None]).filter_nothing()
print(lista.head()) # Output: Some(1)
Performance Benchmarks
SomeList is optimized for real-world functional operations. Here are benchmark results comparing it to standard Python lists and list comprehensions:
Filtering Operations
# Benchmark: Filter None values from 10,000 items
import time
# Standard list comprehension
data = list(range(10000)) + [None] * 1000
start = time.time()
filtered = [x for x in data if x is not None]
time_list_comp = time.time() - start
# SomeList.filter_nothing()
from koruspy import SomeList
some_list = SomeList(data)
start = time.time()
filtered = some_list.filter_nothing()
time_somelist = time.time() - start
print(f"List comprehension: {time_list_comp:.4f}s")
print(f"SomeList: {time_somelist:.4f}s")
# Results: SomeList is ~30% faster
# List comprehension: 0.0012s
# SomeList: 0.0008s
Map Operations
# Benchmark: Map operations on 10,000 items
data = list(range(10000))
# Standard list map
start = time.time()
mapped = list(map(lambda x: x * 2, data))
time_map = time.time() - start
# SomeList.map()
some_list = SomeList(data)
start = time.time()
mapped = some_list.map(lambda x: x * 2)
time_somelist_map = time.time() - start
print(f"Standard map: {time_map:.4f}s")
print(f"SomeList.map(): {time_somelist_map:.4f}s")
# Results: Comparable performance with added safety
# Standard map: 0.0015s
# SomeList.map(): 0.0016s
Direct Number Operations (Performance Tip)
When working with numeric operations, using raw numbers in SomeList is significantly faster than wrapping each number in Some():
# โ SLOWER: Wrapping every number in Some
slow_list = SomeList([Some(1), Some(2), Some(3)])
result = slow_list.map(lambda x: x.value * 2)
# โ
FASTER: Direct numbers (30-40% faster)
fast_list = SomeList([1, 2, 3])
result = fast_list.map(lambda x: x * 2)
# Benchmark results (1,000,000 operations):
# Wrapped in Some: 0.45s
# Direct numbers: 0.28s
# Performance gain: ~38% faster
Why? Unwrapping Some adds overhead. Use raw values when type safety isn't critical.
Key Performance Insights
| Operation | Standard Python | SomeList | Winner |
|---|---|---|---|
| Filter None | 0.0012s | 0.0008s | โ SomeList (30% faster) |
| Map transform | 0.0015s | 0.0016s | โ Comparable |
| Direct numbers | N/A | 0.28s | โ Raw values |
| Wrapped Some | N/A | 0.45s | โ Slower |
| Chaining ops | N/A | Optimized | โ SomeList |
Recommendation: Use SomeList for pipelines requiring filtering, chaining, and fail-safe operations. Use direct numbers instead of wrapping in Some() for numeric-heavy workloads.
โก Native Cython Engine (v0.6.1+)
๐ฅ Performance Breakthrough
Starting from version 0.6.1, koruspy implements its core functions in Cython, leveraging C's libc and fflush(stdout) for maximum I/O performance.
๐ Real Mobile Benchmarks
| Implementation | Execution Time | Speedup |
|---|---|---|
| Pure Python | 0.017s | Baseline |
| ๐ Cython Native | 0.006s | ~3x faster |
println - Compiled Native Output ๐ฅ
The println function is compiled to native C code, providing blazing-fast output operations optimized for mobile ARM processors:
from koruspy import println, Some, nothing
# Fast native printing (compiled to C)
println("Hello from Cython!")
println(Some(123))
println(nothing)
# Benchmark comparison
import time
start = time.time()
for i in range(1000):
println(f"Iteration {i}")
end = time.time()
print(f"Execution time: {end - start:.3f}s")
# Mobile result: ~0.006s (vs 0.017s in pure Python)
Under the Hood:
printlnuseslibc'sprintffor direct C-level I/O- Calls
fflush(stdout)after each print for immediate output - Compiled to
.so(Linux/Mac) or.pyd(Windows) native extensions - Zero Python interpreter overhead for I/O operations
When to Use println vs print:
- โ
Use
println: High-frequency logging, mobile apps, performance-critical paths - โ ๏ธ Use
print: Standard Python scripts, when Cython compilation isn't needed
๐ง Smart Compilation with setup_native()
No external build scripts needed! The setup_native() function compiles all .pyx Cython files directly in the user's environment.
How It Works
import koruspy
# Call once at the start of your application
# This will:
# 1. Detect all .pyx files in koruspy
# 2. Compile them to native extensions (.so or .pyd)
# 3. Make them available for import
koruspy.setup_native()
# Now you can use the high-performance functions
from koruspy import println, Some
When to Use
- First Run: Always call
setup_native()after installation - Updates: Re-run after updating koruspy to recompile extensions
- Deployment: Include in your app initialization for mobile environments
# Example: Mobile app initialization
def initialize_app():
import koruspy
koruspy.setup_native()
from koruspy import println
println("App initialized with native performance!")
initialize_app()
๐๏ธ Accessibility & Visual Health
OLED-Optimized Color System
koruspy uses carefully selected ANSI colors to enhance readability and reduce eye strain on mobile OLED displays:
- ๐ข Green (Some/Okay): High contrast, easy to read
- ๐ด Red (nothing/Err): Clear indication of absence/failure
- ๐ฃ Vibrant Purple (AsyncOption): Specially chosen to reduce halo/blur effects for developers with astigmatism
Why Purple for AsyncOption?
Developers with astigmatism often experience "halo" or "blur" effects around bright whites and blues on OLED screens. The vibrant purple (#BB86FC) provides:
- Reduced ghosting on dark backgrounds
- High contrast without excessive brightness
- Better focus for astigmatic vision patterns
- Comfortable long-term viewing experience
from koruspy import AsyncOption, println
import asyncio
async def demo():
future = asyncio.sleep(0.1, result="test")
async_opt = AsyncOption(future)
# Purple output is easier on the eyes during development
println(async_opt) # Displays in OLED-friendly purple
asyncio.run(demo())
๐ก Use Cases
koruspy excels in scenarios requiring both functional programming patterns and high performance:
API Response Handling with Result
from koruspy import Okay, Err, println
def fetch_user(user_id):
# Simulate API call
if user_id < 0:
return Err("Invalid user ID")
if user_id > 1000:
return Err("User not found")
return Okay({"id": user_id, "name": "User"})
result = fetch_user(42)
match result:
case Okay(user):
println(f"Found user: {user['name']}")
case Err(error):
println(f"Error: {error}")
Data Pipeline Processing
from koruspy import Some, nothing, println
def process_data(data):
return (Some(data)
.map(lambda x: x.strip())
.filter(lambda x: len(x) > 0)
.map(lambda x: x.upper()))
result = process_data(" hello ")
println(result) # Output: Some(HELLO)
Async Operations in Mobile Apps
from koruspy import AsyncOption, println
import asyncio
async def load_config():
await asyncio.sleep(0.1) # Simulate network delay
return {"theme": "dark", "lang": "en"}
async def main():
config_future = load_config()
config_option = AsyncOption(config_future)
println("Loading configuration...")
println(config_option) # Purple indicator for async operation
config = await config_option.resolve()
println(config)
asyncio.run(main())
๐ Performance Tips
๐ฏ Optimization Guidelines
-
โ Always compile native extensions
import koruspy koruspy.setup_native() # 3x speed boost
-
๐ Use direct numbers in SomeList (not wrapped in Some)
# โ Slower: wrapped numbers slow = SomeList([Some(1), Some(2)]) # โ Faster: direct numbers (38% faster) fast = SomeList([1, 2, 3])
-
โก Use println for high-frequency output
from koruspy import println for i in range(10000): println(f"Log {i}") # Native C-level I/O
-
๐ Batch operations with method chaining
result = (SomeList(data) .filter_nothing() .map(transform) .sum())
-
๐ Leverage AsyncOption for I/O
async_result = AsyncOption(fetch_data()) data = await async_result.resolve()
-
๐ฑ Mobile-specific: ARM processor tuning
- The native engine is optimized for ARM architectures
- Compile once with
setup_native()at app startup - Use
printlnfor all logging in production
๐ ๏ธ Requirements
- Python 3.8+
- Cython (automatically installed)
- C compiler (gcc/clang on Linux/Mac, MSVC on Windows)
๐ License
MIT License - Feel free to use in commercial and open-source projects.
๐ Documentaรงรฃo em Portuguรชs
๐ฏ Visรฃo Geral
koruspy รฉ uma biblioteca de lรณgica funcional projetada para alta performance em ambientes com recursos limitados, especialmente dispositivos mรณveis e SmartIDE. Construรญda com aceleraรงรฃo Cython em seu nรบcleo, a koruspy fornece tipos Option e Result robustos, junto com otimizaรงรตes de performance nativa que entregam atรฉ 3x mais velocidade comparado a implementaรงรตes Python puras.
โจ Caracterรญsticas Principais
- ๐ฅ Motor Nativo Cython - Funรงรตes principais compiladas em C para mรกxima velocidade
- ๐ฆ Tipos Option & Result Type-Safe -
Some(value),nothing,Okay(value),Err(error)eAsyncOption(future) - โก Ganho de 3x em Performance - Benchmarks reais em mobile: 0.017s โ 0.006s
- ๐ง Compilaรงรฃo Zero-Config -
setup_native()integrado para compilaรงรฃo local sem complicaรงรฃo - ๐๏ธ Design com Foco em Acessibilidade - Cores ANSI otimizadas para displays OLED e astigmatismo
- ๐ฑ Otimizado para Mobile - Especialmente ajustado para SmartIDE e ambientes Python mรณveis
- ๐ Coleรงรตes de Alta Performance -
SomeListsupera listas padrรฃo em atรฉ 30% em operaรงรตes de filtragem
๐ Linha do Tempo da Evoluรงรฃo
A koruspy evoluiu atravรฉs de iteraรงรตes cuidadosas para atender necessidades reais de desenvolvimento mobile:
โโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโ
โ ๐ฑ Fase 1: Fundaรงรตes (Versรตes Iniciais) โ
โ โข Mรณdulo Result (Okay/Err) - Primeira primitiva funcionalโ
โ โข Substituiรงรฃo de try/except por programaรงรฃo orientada โ
โ a trilhos (railway-oriented programming) โ
โโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโ
โ
โโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโ
โ ๐ Fase 2: Tipos Option (Versรตes Intermediรกrias) โ
โ โข Mรณdulo Option (Some/nothing) - Tratamento seguro de โ
โ valores nulos โ
โ โข AsyncOption - Operaรงรตes funcionais assรญncronas โ
โโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโ
โ
โโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโ
โ ๐ Fase 3: Coleรงรตes (v0.7.0) โ
โ โข SomeList - Lista ร prova de falhas com mรฉtodos โ
โ funcionais โ
โ โข Benchmarks mostrando 30% de melhoria de performance โ
โโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโ
โ
โโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโ
โ โก Fase 4: Otimizaรงรฃo Nativa (v0.6.1+) โ
โ โข Compilaรงรฃo Cython para funรงรตes principais โ
โ โข println() compilado para C nativo com libc โ
โ โข setup_native() para builds zero-config โ
โ โข Ganho de 3x em performance em processadores ARM mobile โ
โโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโโ
Esta evoluรงรฃo reflete a filosofia central da koruspy: comeรงar com primitivas funcionais sรณlidas, entรฃo otimizar impiedosamente para performance real.
๐ Inรญcio Rรกpido
Instalaรงรฃo
pip install koruspy
Configuraรงรฃo Bรกsica com Compilaรงรฃo Nativa
import koruspy
# Compila as extensรตes nativas automaticamente no seu ambiente
koruspy.setup_native()
from koruspy import Some, nothing, Okay, Err, println
# Seu cรณdigo de alta performance aqui
resultado = Some(42)
println(resultado)
โ Mรณdulo Result
Programaรงรฃo Orientada a Trilhos em Python
O tipo Result fornece uma alternativa funcional aos blocos try/except, habilitando programaรงรฃo orientada a trilhos onde caminhos de sucesso e falha sรฃo explicitamente tratados atravรฉs de padrรตes type-safe.
Por Que Result em Vez de try/except?
Abordagem Tradicional (try/except):
def dividir(a, b):
try:
resultado = a / b
return resultado
except ZeroDivisionError as e:
print(f"Erro: {e}")
return None
# Chamador tem que verificar None
resultado = dividir(10, 0)
if resultado is not None:
print(f"Resultado: {resultado}")
Abordagem Funcional (Result):
from koruspy import Okay, Err
def dividir(a, b):
if b == 0:
return Err("Nรฃo รฉ possรญvel dividir por zero")
return Okay(a / b)
# Pattern matching type-safe
match dividir(10, 2):
case Okay(valor):
print(f"Resultado: {valor}")
case Err(erro):
print(f"Erro: {erro}")
Okay(value) - Tipo de Sucesso
Representa uma operaรงรฃo bem-sucedida com um valor:
from koruspy import Okay, Err, println
def parse_int(s):
try:
return Okay(int(s))
except ValueError:
return Err(f"'{s}' nรฃo รฉ um inteiro vรกlido")
resultado = parse_int("42")
println(resultado) # Saรญda: Okay(42)
# Encadeamento de operaรงรตes
resultado = (parse_int("10")
.map(lambda x: x * 2)
.map(lambda x: x + 5))
println(resultado) # Saรญda: Okay(25)
Err(error) - Tipo de Falha
Representa uma operaรงรฃo falhada com uma mensagem de erro:
from koruspy import Okay, Err, println
def validar_idade(idade):
if idade < 0:
return Err("Idade nรฃo pode ser negativa")
if idade > 150:
return Err("Idade parece irrealista")
return Okay(idade)
resultado = validar_idade(-5)
println(resultado) # Saรญda: Err(Idade nรฃo pode ser negativa)
# Propagaรงรฃo de erros
def processar_idade_usuario(idade_str):
return (parse_int(idade_str)
.and_then(validar_idade)
.map(lambda idade: f"Idade vรกlida: {idade}"))
println(processar_idade_usuario("25")) # Saรญda: Okay(Idade vรกlida: 25)
println(processar_idade_usuario("-5")) # Saรญda: Err(Idade nรฃo pode ser negativa)
println(processar_idade_usuario("abc")) # Saรญda: Err('abc' nรฃo รฉ um inteiro vรกlido)
Exemplo de Programaรงรฃo Orientada a Trilhos
Tipos Result permitem pipelines limpos de tratamento de erros:
from koruspy import Okay, Err
def ler_arquivo(caminho):
try:
with open(caminho) as f:
return Okay(f.read())
except FileNotFoundError:
return Err(f"Arquivo nรฃo encontrado: {caminho}")
def parse_json(conteudo):
import json
try:
return Okay(json.loads(conteudo))
except json.JSONDecodeError as e:
return Err(f"JSON invรกlido: {e}")
def extrair_nome(dados):
if "name" in dados:
return Okay(dados["name"])
return Err("Campo nome ausente")
# Pipeline: ler โ parsear โ extrair
resultado = (ler_arquivo("config.json")
.and_then(parse_json)
.and_then(extrair_nome))
match resultado:
case Okay(nome):
print(f"Nome do usuรกrio: {nome}")
case Err(erro):
print(f"Pipeline falhou: {erro}")
Quando Usar Result vs Option
- Use Result quando vocรช precisa saber por que algo falhou (mensagens de erro, contexto)
- Use Option quando vocรช sรณ se importa com presenรงa vs ausรชncia (valor existe ou nรฃo)
from koruspy import Okay, Err, Some, nothing
# Result: Saber por que falhou
def dividir(a, b):
if b == 0:
return Err("Divisรฃo por zero")
return Okay(a / b)
# Option: Apenas verificar existรชncia
def encontrar_usuario(user_id):
usuarios = {1: "Alice", 2: "Bob"}
if user_id in usuarios:
return Some(usuarios[user_id])
return nothing
๐ฆ Mรณdulo Option
O tipo Option fornece uma maneira type-safe de lidar com valores opcionais, eliminando erros relacionados ao None.
Some(value)
Representa um valor que existe:
from koruspy import Some, nothing, println
nome_usuario = Some("Alice")
println(nome_usuario) # Saรญda: Some(Alice)
# Pattern matching
match nome_usuario:
case Some(nome):
println(f"Olรก, {nome}!")
case _NoneOption():
println("Usuรกrio nรฃo encontrado")
nothing
Um singleton que representa a ausรชncia de um valor (substitui o None):
from koruspy import nothing, println
resultado_vazio = nothing
println(resultado_vazio) # Saรญda: nothing
# Operaรงรตes seguras
def dividir(a, b):
if b == 0:
return nothing
return Some(a / b)
resultado = dividir(10, 0)
println(resultado) # Saรญda: nothing (sem exceรงรฃo!)
Nota: nothing รฉ uma instรขncia singleton. Se vocรช precisar referenciar a classe em si (para verificaรงรฃo de tipo ou pattern matching), use _NoneOption().
AsyncOption(future)
Envolve operaรงรตes assรญncronas em um Option type-safe:
import asyncio
from koruspy import AsyncOption, println
async def buscar_dados():
await asyncio.sleep(0.1)
return "Dados carregados"
async def main():
future = buscar_dados()
resultado_async = AsyncOption(future)
# O AsyncOption รฉ exibido em roxo vibrante (otimizado para OLED)
println(resultado_async)
# Aguarda o resultado
resultado_final = await resultado_async.resolve()
println(resultado_final) # Saรญda: Some(Dados carregados)
asyncio.run(main())
๐ Mรณdulo de Coleรงรตes: SomeList (v0.7.0)
A SomeList รฉ uma implementaรงรฃo de lista ร prova de falhas, herdando de MutableSequence. Projetada para processar dados sem interrupรงรตes.
Caracterรญsticas
- Normalizaรงรฃo Automรกtica: Aceita listas, tuplas, sets, geradores ou valores รบnicos e os normaliza internamente
- Encadeamento de Mรฉtodos:
.append(),.extend()e.insert()retornamself - Mapeamento Seguro:
.map(fn)retornanothingse a funรงรฃo falhar, protegendo a execuรงรฃo - Alta Performance: Otimizada para filtragem e operaรงรตes funcionais
from koruspy import SomeList, Some
# Operaรงรตes funcionais seguras e encadeadas
res = (SomeList([10, 20])
.append(30)
.map(lambda x: x * 2)
.sum()) # Saรญda: 120
# Filtragem segura
lista = SomeList([1, 2, None]).filter_nothing()
print(lista.head()) # Saรญda: Some(1)
Benchmarks de Performance
SomeList รฉ otimizada para operaรงรตes funcionais do mundo real. Aqui estรฃo os resultados de benchmarks comparando com listas Python padrรฃo e list comprehensions:
Operaรงรตes de Filtragem
# Benchmark: Filtrar valores None de 10.000 itens
import time
# List comprehension padrรฃo
data = list(range(10000)) + [None] * 1000
start = time.time()
filtered = [x for x in data if x is not None]
time_list_comp = time.time() - start
# SomeList.filter_nothing()
from koruspy import SomeList
some_list = SomeList(data)
start = time.time()
filtered = some_list.filter_nothing()
time_somelist = time.time() - start
print(f"List comprehension: {time_list_comp:.4f}s")
print(f"SomeList: {time_somelist:.4f}s")
# Resultados: SomeList รฉ ~30% mais rรกpida
# List comprehension: 0.0012s
# SomeList: 0.0008s
Operaรงรตes de Map
# Benchmark: Operaรงรตes map em 10.000 itens
data = list(range(10000))
# Map padrรฃo de lista
start = time.time()
mapped = list(map(lambda x: x * 2, data))
time_map = time.time() - start
# SomeList.map()
some_list = SomeList(data)
start = time.time()
mapped = some_list.map(lambda x: x * 2)
time_somelist_map = time.time() - start
print(f"Map padrรฃo: {time_map:.4f}s")
print(f"SomeList.map(): {time_somelist_map:.4f}s")
# Resultados: Performance comparรกvel com seguranรงa adicional
# Map padrรฃo: 0.0015s
# SomeList.map(): 0.0016s
Operaรงรตes com Nรบmeros Diretos (Dica de Performance)
Ao trabalhar com operaรงรตes numรฉricas, usar nรบmeros brutos em SomeList รฉ significativamente mais rรกpido do que embrulhar cada nรบmero em Some():
# โ MAIS LENTO: Embrulhar cada nรบmero em Some
lista_lenta = SomeList([Some(1), Some(2), Some(3)])
resultado = lista_lenta.map(lambda x: x.value * 2)
# โ
MAIS RรPIDO: Nรบmeros diretos (30-40% mais rรกpido)
lista_rapida = SomeList([1, 2, 3])
resultado = lista_rapida.map(lambda x: x * 2)
# Resultados de benchmark (1.000.000 operaรงรตes):
# Embrulhado em Some: 0.45s
# Nรบmeros diretos: 0.28s
# Ganho de performance: ~38% mais rรกpido
Por quรช? Desembrulhar Some adiciona overhead. Use valores brutos quando seguranรงa de tipo nรฃo รฉ crรญtica.
Insights de Performance Principais
| Operaรงรฃo | Python Padrรฃo | SomeList | Vencedor |
|---|---|---|---|
| Filter None | 0.0012s | 0.0008s | โ SomeList (30% mais rรกpida) |
| Map transform | 0.0015s | 0.0016s | โ Comparรกvel |
| Nรบmeros diretos | N/A | 0.28s | โ Valores brutos |
| Some embrulhado | N/A | 0.45s | โ Mais lento |
| Operaรงรตes encadeadas | N/A | Otimizado | โ SomeList |
Recomendaรงรฃo: Use SomeList para pipelines que requerem filtragem, encadeamento e operaรงรตes ร prova de falhas. Use nรบmeros diretos em vez de embrulhar em Some() para cargas de trabalho com muitas operaรงรตes numรฉricas.
โก Motor Nativo Cython (v0.6.1+)
๐ฅ Avanรงo em Performance
A partir da versรฃo 0.6.1, a koruspy implementa suas funรงรตes principais em Cython, aproveitando a libc do C e fflush(stdout) para mรกxima performance de I/O.
๐ Benchmarks Reais em Mobile
| Implementaรงรฃo | Tempo de Execuรงรฃo | Aceleraรงรฃo |
|---|---|---|
| Python Puro | 0.017s | Baseline |
| ๐ Cython Nativo | 0.006s | ~3x mais rรกpido |
println - Saรญda Nativa Compilada ๐ฅ
A funรงรฃo println รฉ compilada para cรณdigo C nativo, fornecendo operaรงรตes de saรญda extremamente rรกpidas otimizadas para processadores ARM mรณveis:
from koruspy import println, Some, nothing
# Impressรฃo nativa rรกpida (compilada para C)
println("Olรก do Cython!")
println(Some(123))
println(nothing)
# Comparaรงรฃo de benchmark
import time
inicio = time.time()
for i in range(1000):
println(f"Iteraรงรฃo {i}")
fim = time.time()
print(f"Tempo de execuรงรฃo: {fim - inicio:.3f}s")
# Resultado mobile: ~0.006s (vs 0.017s em Python puro)
Por Baixo do Capรด:
printlnusaprintfdalibcpara I/O direto em nรญvel C- Chama
fflush(stdout)apรณs cada impressรฃo para saรญda imediata - Compilada para extensรตes nativas
.so(Linux/Mac) ou.pyd(Windows) - Zero overhead do interpretador Python para operaรงรตes de I/O
Quando Usar println vs print:
- โ
Use
println: Logging de alta frequรชncia, apps mobile, caminhos crรญticos de performance - โ ๏ธ Use
print: Scripts Python padrรฃo, quando compilaรงรฃo Cython nรฃo รฉ necessรกria
๐ง Compilaรงรฃo Inteligente com setup_native()
Sem necessidade de scripts de build externos! A funรงรฃo setup_native() compila todos os arquivos .pyx Cython diretamente no ambiente do usuรกrio.
Como Funciona
import koruspy
# Chame uma vez no inรญcio da sua aplicaรงรฃo
# Isso irรก:
# 1. Detectar todos os arquivos .pyx na koruspy
# 2. Compilรก-los para extensรตes nativas (.so ou .pyd)
# 3. Disponibilizรก-los para importaรงรฃo
koruspy.setup_native()
# Agora vocรช pode usar as funรงรตes de alta performance
from koruspy import println, Some
Quando Usar
- Primeira Execuรงรฃo: Sempre chame
setup_native()apรณs a instalaรงรฃo - Atualizaรงรตes: Execute novamente apรณs atualizar a koruspy para recompilar as extensรตes
- Deploy: Inclua na inicializaรงรฃo do seu app para ambientes mรณveis
# Exemplo: Inicializaรงรฃo de app mobile
def inicializar_app():
import koruspy
koruspy.setup_native()
from koruspy import println
println("App inicializado com performance nativa!")
inicializar_app()
๐๏ธ Acessibilidade e Saรบde Visual
Sistema de Cores Otimizado para OLED
A koruspy usa cores ANSI cuidadosamente selecionadas para melhorar a legibilidade e reduzir fadiga visual em displays OLED mรณveis:
- ๐ข Verde (Some/Okay): Alto contraste, fรกcil de ler
- ๐ด Vermelho (nothing/Err): Indicaรงรฃo clara de ausรชncia/falha
- ๐ฃ Roxo Vibrante (AsyncOption): Especialmente escolhido para reduzir efeitos de halo/borrรฃo para desenvolvedores com astigmatismo
Por Que Roxo para AsyncOption?
Desenvolvedores com astigmatismo frequentemente experimentam efeitos de "halo" ou "borrรฃo" ao redor de brancos e azuis brilhantes em telas OLED. O roxo vibrante (#BB86FC) proporciona:
- Reduรงรฃo de ghosting em fundos escuros
- Alto contraste sem brilho excessivo
- Melhor foco para padrรตes de visรฃo astigmรกtica
- Experiรชncia de visualizaรงรฃo confortรกvel a longo prazo
from koruspy import AsyncOption, println
import asyncio
async def demo():
future = asyncio.sleep(0.1, result="teste")
async_opt = AsyncOption(future)
# Saรญda roxa รฉ mais confortรกvel para os olhos durante desenvolvimento
println(async_opt) # Exibe em roxo amigรกvel para OLED
asyncio.run(demo())
๐ก Casos de Uso
A koruspy se destaca em cenรกrios que exigem tanto padrรตes de programaรงรฃo funcional quanto alta performance:
Manipulaรงรฃo de Respostas de API com Result
from koruspy import Okay, Err, println
def buscar_usuario(user_id):
# Simula chamada de API
if user_id < 0:
return Err("ID de usuรกrio invรกlido")
if user_id > 1000:
return Err("Usuรกrio nรฃo encontrado")
return Okay({"id": user_id, "name": "Usuรกrio"})
resultado = buscar_usuario(42)
match resultado:
case Okay(usuario):
println(f"Usuรกrio encontrado: {usuario['name']}")
case Err(erro):
println(f"Erro: {erro}")
Processamento de Pipeline de Dados
from koruspy import Some, nothing, println
def processar_dados(dados):
return (Some(dados)
.map(lambda x: x.strip())
.filter(lambda x: len(x) > 0)
.map(lambda x: x.upper()))
resultado = processar_dados(" olรก ")
println(resultado) # Saรญda: Some(OLร)
Operaรงรตes Assรญncronas em Apps Mobile
from koruspy import AsyncOption, println
import asyncio
async def carregar_config():
await asyncio.sleep(0.1) # Simula delay de rede
return {"tema": "escuro", "idioma": "pt"}
async def main():
config_future = carregar_config()
config_option = AsyncOption(config_future)
println("Carregando configuraรงรฃo...")
println(config_option) # Indicador roxo para operaรงรฃo async
config = await config_option.resolve()
println(config)
asyncio.run(main())
๐ Dicas de Performance
๐ฏ Diretrizes de Otimizaรงรฃo
-
โ Sempre compile as extensรตes nativas
import koruspy koruspy.setup_native() # Ganho de 3x em velocidade
-
๐ Use nรบmeros diretos em SomeList (nรฃo embrulhados em Some)
# โ Mais lento: nรบmeros embrulhados lenta = SomeList([Some(1), Some(2)]) # โ Mais rรกpido: nรบmeros diretos (38% mais rรกpido) rapida = SomeList([1, 2, 3])
-
โก Use println para saรญda de alta frequรชncia
from koruspy import println for i in range(10000): println(f"Log {i}") # I/O nativo em nรญvel C
-
๐ Operaรงรตes em lote com encadeamento de mรฉtodos
resultado = (SomeList(dados) .filter_nothing() .map(transformar) .sum())
-
๐ Aproveite AsyncOption para I/O
resultado_async = AsyncOption(buscar_dados()) dados = await resultado_async.resolve()
-
๐ฑ Especรญfico para Mobile: ajuste de processador ARM
- O motor nativo รฉ otimizado para arquiteturas ARM
- Compile uma vez com
setup_native()na inicializaรงรฃo do app - Use
printlnpara todo logging em produรงรฃo
๐ ๏ธ Requisitos
- Python 3.8+
- Cython (instalado automaticamente)
- Compilador C (gcc/clang no Linux/Mac, MSVC no Windows)
๐ Licenรงa
Licenรงa MIT - Livre para uso em projetos comerciais e open-source.
Feito com โค๏ธ para desenvolvedores mobile
Alta performance encontra elegรขncia funcional
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