lssndrbarbieri@gmail.com Alessandro Barbieri dreid/atomiclong Sometimes you need to increment some numbers ... atomically ... in python. AtomicLong was born out of the need for fast thread-safe counters in python. It uses CFFI to bind GCC's Atomic Builtins. Its value is a C long which can be incremented, decremented, and set atomically. It is inspired by Java's java.util.concurrent.atomic.AtomicLong.