get_cpu_count.py 文件源码

def get_cpu_count():
    try:
        import multiprocessing
        return multiprocessing.cpu_count()
    except (ImportError, NotImplementedError):
        pass

    # http://code.google.com/p/psutil/
    try:
        import psutil
        return psutil.cpu_count() #psutil.NUM_CPUS on old versions
    except (ImportError, AttributeError):
        pass

    return 1