英文:
Create a new context manager instance every X iterations
问题
如果我有一个上下文管理器CM，它创建一个新的API会话，那么如何在每使用它的10次迭代中创建一个新的上下文管理器呢？问题在于API只能处理有限数量的请求。
counter = 0
# <某个循环，在计数器达到10时创建新会话>
with new_session() as session:
# 做一些事情
counter += 1
我最初的想法是像这样做：if counter % 10 == 0: 创建新会话，但这不会保持会话在整个10次迭代中的有效性。
我不知道如何设置循环。
英文:
Say that I have a context manager, CM, that creates a new API session. How can I create a new context manager every 10 iterations of using it? The issue is that the API can only handle so many requests.
counter = 0
# <some loop make new session when counter reaches 10>
with new_session() as session:
# Do stuff
counter += 1
My first thought was to do something like if counter % 10 == 0: make new session but that doesn’t preserve the session for the whole 10 iterations.
I can’t figure out how to set up the loop.
答案1
得分: 2
使用循环进行10次迭代 在 上下文管理器内部。
然后，您可以将整个内容放入另一个循环中，以保持进行多次10次迭代。
keep_going = True
while keep_going:
with new_session() as session:
for _ in range(10):
# 进行操作
要停止，可以在某个时候将 keep_going 设置为 False。
如果需要更精细的控制来决定何时停止，可以将所有内容放入一个函数中，并使用 return 语句来退出（请参考 https://stackoverflow.com/questions/189645/how-can-i-break-out-of-multiple-loops）。
英文:
Use a loop for 10 iterations inside the context manager.
Then you can put the whole thing in another loop to keep going for multiples of 10 iterations.
keep_going = True
while keep_going:
with new_session() as session:
for _ in range(10):
# do stuff
To stop, set keep_going to False at some point.
If you need more fine-grained control over when to stop, you could put everything inside a function and use a return statement to exit (see https://stackoverflow.com/questions/189645/how-can-i-break-out-of-multiple-loops).
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