singleton in python

Question

question@mail.ru ·

singleton in python

📁 Advanced Python Topics, AI

Implemented singleton from Wiki()

My code:

class SpriteManager(object):    def __new__(cls):        if not hasattr(cls, 'instance'):             cls.instance = super(SpriteManager, cls).__new__(cls)        retu cls.instance    def __init__(self):        self.setSprite = set()

Every time I call SpriteManager() the constructor is called. According to the singleton concept

1 responses

answer@mail.ru · Answer 1

I don't know a way to end input with a specific key, but I know another method:

var = """".join(iter(input, """"))

In this case, input will end when you press enter on an empty line.

Since people are upvoting, I think it's worth explaining the code:
iter(input, """") will yield the result of calling the input function without arguments, until input() returns an empty string (""""). Then we simply join all the results from this generator using """".

singleton in python

Blogs

SOLID Principles in Swift: Theory and Practice for iOS/macOS

Logging in Kotlin Applications: Best Practices for Beginners

Java Security: How to Protect Code from SQL Injections and XSS Attacks

Screen, Window, and Page Size in JavaScript: 5 Fatal Errors and How to Avoid Them

Generics in PHP: A Complete Guide to Typing with Examples

Similar questions