Note that std::future references shared state that is not shared with any other asynchronous return objects (as opposed to std::shared_future). A future statement is a directive to the compiler that a particular module should be compiled using syntax or semantics that will be available in a specified future release of Python. The future statement is intended to ease migration to future versions of Python that introduce incompatible changes to the language.

Understanding the Context

It allows use of the new features on a per-module basis before the release in ... What is __future__ in Python used for and how/when to use it, and how ... Next() is a convenience function for Then() as stated in the source code. The difference is that the callable for Next() accepts the Future result type instead of the future itself.

Key Insights

wait_until waits for a result to become available. It blocks until specified timeout_time has been reached or the result becomes available, whichever comes first. The return value indicates why wait_until returned. If the future is the result of a call to async that used lazy evaluation, this function returns immediately without waiting. The behavior is undefined if valid () is false before ...

Final Thoughts

How do I create future dates in SQL? For example, I want to be able to use my date range and show everything for just next month (purchase orders), then another for two months out, etc. I have used... Accepting ObjectPaths is deprecated behavior and will be removed in a future release is harmless and nothing in the 5.3 python documentation discusses alternatives. If that expression is invalid, the behavior is undefined. Any value returned from the continuation is stored as the result in the shared state of the returned future object.

Any exception propagated from the execution of the continuation is stored as the exceptional result in the shared state of the returned future object.