参考 https://stackoverflow.com/questions/6319207/are-lists-thread-safe/19728536#19728536 https://docs.python.org/3/faq/library.html#what-kinds-of-global-value-mutation-are-thread-safe
threads = [Thread(target=safe_add), Thread(target=safe_sub)]fortinthreads: t.start()fortinthreads: t.join()print(f"最终:{a}") 使用Lock或RLock保护临界区,确保同一时刻只有一个线程访问共享资源。 4. 生产者-消费者模型 通过queue.Queue实现线程间安全的数据交换: fromqueueimportQueuefromthreadingimport...
thread1.start()thread2.start()# 等待线程完成 thread1.join()thread2.join()print('主线程结束') 在这个示例中,我们定义了两个函数print_numbers和print_letters,分别用于打印数字和字母。然后创建了两个线程thread1和thread2,并将这两个函数作为目标函数传递给线程。通过调用start方法启动线程,线程开始执行各自的...
通过threading.current_thread()打印线程ID确认线程确实启动了,但就是无法并行执行。这才意识到Python有个叫GIL的东西。 importthreadingdefworker():print(f"Thread{threading.current_thread().name}started")# 模拟CPU密集型操作sum=0foriinrange(10000000):sum+=i threads=[]foriinrange(4):t=threading.Thread...
则返回 False 不拦截异常returnFalse# 使用上下文管理器实现线程同步defthread_safe_operation():withThreadSafeContextManager()aslock:# 这个区域内的代码是线程安全的shared_resource.append(f'Item added by thread {threading.get_ident()}')print(f"Thread ID: {threading.get_ident()}, Resource: {shared_...
sqlite3 based queues are not thread-safe. The sqlite3 queues are heavily tested under multi-threading environment, if you find it's not thread-safe, please make sure you set themultithreading=Truewhen initializing the queue before submitting new issue:)....
pyqtgraph also provides a few useful extras, like edit widgets that are units-aware (kilograms, meters and so on), and tree widgets that can be built automatically from (nested!) standard Python data structures like lists, dictionaries, and arrays....
urllib3 is a powerful, sanity-friendly HTTP client for Python. Much of the Python ecosystem already uses urllib3 and you should too. urllib3 brings many critical features that are missing from the Python standard libraries: Thread safety. Connection pooling. Client-side SSL/TLS verification. File...
safe_load(f) with open(self.devices_config_path) as f: for devcie_config_path in f.readlines(): devcie_config_path = devcie_config_path.strip() devices_config.append(devcie_config_path) return devices_info, devices_config parsePath的初始方法init,主要用于接收2个参数,device_info_path参数...
You may not need all of these, depending on how and what you are installing CMake ≥ 3.22 CPython ≥ 3.8 and its C headers and library cURL ≥ 7.68.0 GCC ≥ 9.4.0 or Clang ≥ 12.0.0 Git ≥ 2.30.2 GNU Make ≥ 4.2.1 pip ≥ 23.0 pkg-config ≥ 0.29.2 or pkgconf ≥ 1.8.0 ...