synchronized method in python

Java code

class AClass {
    private int count =0;

    public synchronized inc(){
        count++;
    }

    public synchronized dec(){
        count--;
    }
}

Python code

import threading

class AClass(object):
    def __init__(self):
        self.__count = 0;
        self.__lock = threading.RLock()

    def inc(self):
        with self.__lock:
            self.__count += 1

    def dec(self):
        with self.__lock:
            self.__count -= 1

see also

• Python threads synchronization: Locks, RLocks, Semaphores, Conditions, Events and Queues

synchronized static method in python

Java code

class AClass {
    private static int _count = 0;

    public static synchronized inc(){
        _count ++;
    }
    
    public static synchronized dec(){
        _count --;
    }
}

Python code

import threading

class AClass(object):
    __count = 0
    __lock = threading.RLock()

    @classmethod
    def inc(cls):
        with cls.__lock:
            cls.__count += 1

    @classmethod
    def dec(cls):
        with cls.__lock:
            cls.__count -= 1