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Изворен канал @pythonotes · Post #401 · 15 дек.

Функция asyncio.wait() это еще один способ вызвать множество асинхронных задач. Она работает в нескольких режимах. 1. Самый простой - ждем завершения всех задач async def main(): tasks = [asyncio.create_task(do_it(i)) for i in range(10)] done, pending = await asyncio.wait( tasks, return_when=asyncio.ALL_COMPLETED ) for task in done: try: print(task.result()) except Exception as e: print(e) Очень похоже на gather, но работает не так. ▫️возвращает не результаты, а два сета с объектами Task у которых можно забрать результат через task.result() если они в списке done ▫️не гарантирует порядок результатов так как оба объекта это set ▫️не выбрасывает исключение когда оно появляется, а сохраняет его в Task. Исключение появится когда попробуете забрать резултьтат. 2. Ждем завершения первой задачи, даже если там ошибка. async def main(): tasks = [asyncio.create_task(do_it(i)) for i in range(3)] done, pending = await asyncio.wait( tasks, return_when=asyncio.FIRST_COMPLETED ) # в done может быть несколько задач! for task in done: try: print(task.result()) except Exception as e: print(f"Fail: {e}") # Оставшиеся задачи в pending, как правило, нужно отменить, иначе они будут продолжать работать for task in pending: task.cancel() В сете done будут таски которые успели завершится, причем как успешно так и нет. 3. До первой ошибки. Тоже самое, но с аргументом FIRST_EXCEPTION done, pending = await asyncio.wait( tasks, return_when=asyncio.FIRST_EXCEPTION ) Функция завершается как только первая задача упадет с ошибкой. Учтите, что в любом случае done вы можете обранужить несколько задач, как с ошибками так и успешные. ↗️ Полный листинг примеров здесь #async

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🇷🇺🇲🇳 President of Russia Vladimir Putin and President of Mongolia Ukhnaagiin Khurelsukh held a meeting in Ulaanbaatar. 💬President Putin: First of all, I want to thank you for the invitation. It has, in fact, become a good tradition for us to meet in Mongolia every five years to mark the remarkable highly significant events in our shared history. You have listed the dates we will be commemorating this year. Each of these dates holds special significance for both Russia and Mongolia. I would like to add that Erdenet, which you have mentioned, was planned by architects from Leningrad. I am also pleased to note that the Russian-Mongolian relations have been developing on a new foundation. Our countries have experienced growth in trade, despite the various challenges we have faced, including those you have mentioned, such as COVID. In fact, relations between our countries are progressing well across all areas. Apart from the economy and politics, where we continue to cooperate quite actively, I would like to highlight the successful collaboration in culture and education. The Intergovernmental Commission has been working proactively and there are good results. During our discussions today, we will undoubtedly touch upon the key trends in our economic collaboration. To conclude my opening remarks, I would like to extend an invitation for you to visit Kazan, Russia, where the #BRICS Summit will be held later this year. This will be the first top-level event following the recent expansion of the association. I hope you will take part in the #BRICSOutreach – #BRICSplus format. We look forward to seeing you in Russia. International consultations began with a conversation between the two Leaders in a restricted format, followed by a meeting with the participation of the two countries’ delegations. ✍️ A set of documents was signed following talks. The Government of the Russian Federation and the Government of Mongolia signed agreements on the development of basic project documentation for the reconstruction of the TPP-3 thermal power plant in Ulaanbaatar, as well as on cooperation in the supply of oil products and on providing Mongolia with aviation fuel. The Russian Federal Service for the Oversight of Consumer Protection and Welfare and the Ministry of Health of Mongolia signed an Agreement on cooperation to ensure epidemiological welfare with regard to plague. In addition, the Russian Federation Ministry of Natural Resources and Environment and the Ministry of Environment and Climate Change of Mongolia signed a Memorandum of Understanding on cooperation in the conservation of Lake Baikal and the Selenga River. Presidents Vladimir Putin and Ukhnaagiin Khurelsukh also made statements to the media. #RussiaMongolia