100)) In [4]: roll = df.rolling(100) # 默认使用单Cpu进行计算 In [5]: %timeit roll.mean(engine="numba", engine_kwargs={"parallel": True}) 347 ms ± 26 ms per loop (mean ± std. dev. of 7 runs, 1 loop each) # 设置使用2个CPU进行并行计算,...
/usr/bin/env python3# countasync.pyimportasyncioasyncdefcount():print("One")awaitasyncio.sleep(1)print("Two")asyncdefmain():awaitasyncio.gather(count(),count(),count())if__name__=="__main__":importtime s=time.perf_counter()asyncio.run(main())elapsed=time.perf_counter()-sprint(f"{...
# When calling functions, you can do the opposite of args/kwargs! # Use * to expand tuples and use ** to expand kwargs. args = (1, 2, 3, 4) kwargs = {"a": 3, "b": 4} all_the_args(*args) # equivalent to all_the_args(1, 2, 3, 4) all_the_args(**kwargs) # e...
def wrapper_repeat(*args, **kwargs): for _ in range(num_times): value = func(*args, **kwargs) return value This wrapper_repeat() function takes arbitrary arguments and returns the value of the decorated function, func(). This wrapper function also contains the loop that calls the decor...
super(Window, self).__init__(*args, **kwargs) # Whether or not the window exclusively captures the mouse. self.exclusive = False # When flying gravity has no effect and speed is increased. self.flying = False # Strafing is moving lateral to the direction you are facing, ...
Recursion is a common mathematical and programming concept. It means that a function calls itself. This has the benefit of meaning that you can loop through data to reach a result. The developer should be very careful with recursion as it can be quite easy to slip into writing a function ...
我们首先通过调用get_event_loop()方法获取 AsyncIO 事件循环。get_event_loop()方法返回在代码运行的平台上的 AsyncIO 的最佳事件循环实现。 AsyncIO 实现了多个事件循环,程序员可以使用。通常,对get_event_loop()的简单调用将返回系统解释器正在运行的最佳事件循环实现。 一旦我们创建了循环,现在我们通过使用create_tas...
apscheduler.schedulers.blocking.BlockingScheduler:当调度器是程序中唯一运行的东西时使用,阻塞式。 apscheduler.schedulers.background.BackgroundScheduler:当调度器需要后台运行时使用。 apscheduler.schedulers.asyncio.AsyncIOScheduler:当程序使用 asyncio 框架时使用。
When defining a function inside a loop that uses the loop variable in its body, the loop function's closure is bound to the variable, not its value. The function looks up x in the surrounding context, rather than using the value of x at the time the function is created. So all of ...
formatters - 日志格式化器,其value值为一个字典,该字典的每个键值对都代表一个Formatter,键值对中,key代表Formatter ID(自定义ID),value为字典,描述如何配置相应的Formatter实例。默认格式为 ‘%(message)s’ filters - 日志过滤器,其value值为一个字典,该字典的每个键值对都代表一个Filter,键值对中,key代表Filter...