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Migliori Pratiche per l'Efficienza del Codice

Questa guida delinea le migliori pratiche per scrivere codice efficiente e performante con TomatoPy.

Gestione della Memoria

Creazione Efficiente degli Ingredienti

# Buono: Crea ingredienti con un uso minimo della memoria
tomato = Tomato(
    ripeness=0.8,
    variety="San Marzano",
    weight=150
)

# Cattivo: Creare copie non necessarie
tomato_copy = tomato.copy()  # Uso di memoria non necessario

Elaborazione in Batch

# Buono: Elabora ingredienti in batch
def process_ingredients(ingredients, batch_size=100):
    for i in range(0, len(ingredients), batch_size):
        batch = ingredients[i:i + batch_size]
        process_batch(batch)

# Cattivo: Elaborazione uno alla volta
for ingredient in ingredients:
    process_single(ingredient)  # Meno efficiente

Ottimizzazione delle Prestazioni

Caching dei Risultati

from functools import lru_cache

# Buono: Cache delle computazioni costose
@lru_cache(maxsize=128)
def analyze_ingredient(ingredient):
    return TasteTester().analyze(ingredient)

# Cattivo: Ricalcolare ogni volta
def analyze_ingredient(ingredient):
    return TasteTester().analyze(ingredient)  # Nessun caching

Strutture Dati Efficaci

# Buono: Usa strutture dati appropriate
from collections import defaultdict

class Recipe:
    def __init__(self):
        self.ingredients = defaultdict(float)  # Efficiente per il tracciamento degli ingredienti

# Cattivo: Uso di strutture inefficienti
class Recipe:
    def __init__(self):
        self.ingredients = []  # Meno efficiente per le ricerche

Gestione delle Risorse

Gestori di Contesto

# Buono: Usa gestori di contesto per la pulizia delle risorse
with kitchen.temperature_monitor() as monitor:
    result = kitchen.cook(ingredient)
    data = monitor.get_data()

# Cattivo: Gestione manuale delle risorse
monitor = kitchen.temperature_monitor()
try:
    result = kitchen.cook(ingredient)
    data = monitor.get_data()
finally:
    monitor.cleanup()  # Più soggetto a errori

Pooling delle Connessioni

# Buono: Usa il pooling delle connessioni
from tomatopy import ConnectionPool

pool = ConnectionPool(max_connections=10)
with pool.get_connection() as conn:
    conn.execute_operation()

# Cattivo: Creare nuove connessioni ogni volta
conn = create_connection()  # Meno efficiente
conn.execute_operation()
conn.close()

Ottimizzazione degli Algoritmi

Ricerca Efficiente

# Buono: Usa la ricerca binaria per dati ordinati
def find_optimal_temperature(sorted_temps, target):
    left, right = 0, len(sorted_temps) - 1
    while left <= right:
        mid = (left + right) // 2
        if sorted_temps[mid] == target:
            return mid
        elif sorted_temps[mid] < target:
            left = mid + 1
        else:
            right = mid - 1
    return -1

# Cattivo: Ricerca lineare
def find_optimal_temperature(temps, target):
    for i, temp in enumerate(temps):
        if temp == target:
            return i
    return -1

Elaborazione Parallela

from concurrent.futures import ThreadPoolExecutor

# Buono: Elabora più ingredienti in parallelo
def process_ingredients_parallel(ingredients):
    with ThreadPoolExecutor(max_workers=4) as executor:
        results = list(executor.map(process_ingredient, ingredients))
    return results

# Cattivo: Elaborazione sequenziale
def process_ingredients_sequential(ingredients):
    results = []
    for ingredient in ingredients:
        results.append(process_ingredient(ingredient))
    return results

Organizzazione del Codice

Design Modulare

# Buono: Struttura del codice modulare
class IngredientProcessor:
    def process(self, ingredient):
        self.validate(ingredient)
        self.prepare(ingredient)
        self.analyze(ingredient)

# Cattivo: Funzioni monolitiche
def process_ingredient(ingredient):
    # Tutto il processamento in una funzione
    validate_ingredient(ingredient)
    prepare_ingredient(ingredient)
    analyze_ingredient(ingredient)

Interfacce Pulite

# Buono: Design di interfaccia pulita
class Kitchen:
    def cook(self, ingredient, **kwargs):
        self._validate_parameters(kwargs)
        self._prepare_environment()
        return self._execute_cooking(ingredient, kwargs)

# Cattivo: Interfaccia complessa
def cook(ingredient, temperature=None, duration=None, method=None, 
         stirring_frequency=None, humidity=None, pressure=None):
    # Troppi parametri
    pass

Gestione degli Errori

Recupero Efficiente dagli Errori

# Buono: Recupero dagli errori in modo elegante
def process_recipe(recipe):
    try:
        result = kitchen.cook_recipe(recipe)
        return result
    except TemperatureError:
        # Gestisci l'errore di temperatura
        return adjust_temperature(recipe)
    except IngredientError:
        # Gestisci l'errore di ingrediente
        return substitute_ingredients(recipe)
    finally:
        cleanup_resources()

# Cattivo: Nessun recupero dagli errori
def process_recipe(recipe):
    result = kitchen.cook_recipe(recipe)
    return result  # Nessuna gestione degli errori

Pulizia delle Risorse

# Buono: Pulizia adeguata delle risorse
classe Cucina:
    def __init__(self):
        self.resources = []

    def __enter__(self):
        return self

    def __exit__(self, exc_type, exc_val, exc_tb):
        self.cleanup()

# Cattivo: Pulizia manuale
def use_kitchen():
    kitchen = Cucina()
    try:
        # Usa la cucina
        pass
    finally:
        kitchen.cleanup()

Test e Profilazione

Prossimi Passi

# Good: Performance testing
import time
import cProfile

def profile_operation(func):
    def wrapper(*args, **kwargs):
        profiler = cProfile.Profile()
        result = profiler.runcall(func, *args, **kwargs)
        profiler.print_stats()
        return result
    return wrapper

# Bad: No performance testing
def operation():
    # No performance monitoring
    pass

Memory Profiling

# Good: Memory profiling
from memory_profiler import profile

@profile
def memory_intensive_operation():
    # Operation to profile
    pass

# Bad: No memory profiling
def memory_intensive_operation():
    # No memory monitoring
    pass

Best Practices Summary

  1. Memory Management

    • Use efficient data structures

    • Implement batch processing

    • Avoid unnecessary copies

  2. Performance Optimization

    • Cache expensive computations

    • Use appropriate algorithms

    • Implement parallel processing

  3. Resource Management

    • Use context managers

    • Implement connection pooling

    • Clean up resources properly

  4. Code Organization

    • Follow modular design

    • Create clean interfaces

    • Maintain separation of concerns

  5. Error Handling

    • Implement graceful recovery

    • Clean up resources properly

    • Log errors appropriately

Next Steps

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