Re: [Python-ideas] Atomic counter / atomic increment

import threading

class AtomicCounter:
    def __init__(self, initial=0):
        self.value = initial
        self._lock = threading.Lock()

    def increment(self, num=1):
        with self._lock:
            self.value += num
            return self.value

Some late nitpicking, sorry:

This is not an atomic counter, it's a thread-safe counter. And since being thread-safe is rarely a bad idea, especially assuming someone will manage to Kill GIL, I would just call it a "counter" or Counter.

(Of course, atomic/lock-free implementations are nice when possible.)

-- Koos