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Wait

As explained in Python Concurrency with asyncio

Condition.wait is a coroutine method that releases an acquired condition lock, waits for notification, and reacquires the lock before returning.

Condition.wait releases an acquired condition lock while a coroutine waits for notification, then reacquires the lock before continuing. A condition combines lock-based exclusive access with event-style notification for shared resources and more selective coordination. section 11.5

Use the wait cycle to coordinate workers safely:

  • Acquire the condition before calling wait. section 11.5
  • Call await condition.wait() to release the lock and block until notification. section 11.5
  • Let another coroutine acquire the condition and call notify_all(). section 11.5

Waiting for a connection state

An execute coroutine can hold a condition, call wait_for(_is_initialized), and pause until initialization changes the connection state to INITIALIZED. Multiple queries can wait without accessing the connection prematurely.

How Python Concurrency with asyncio covers it

How deep it goes
Explains lock release, blocking, notification, and reacquisition through worker code, but does not descend into implementation internals.
Examples
Uses two waiting workers, a delayed notifier, and connection initialization guarded by a state predicate.
What it assumes
Assumes coroutine syntax and condition-lock acquisition, while demonstrating the release-and-reacquire behavior directly.
What you can do after
Apply it via asyncio.Condition to pause workers, receive notifications, and resume protected work after a condition becomes true.
How it connects
Connects condition variables with locks, events, notify_all, wait_for, shared resources, and state-based synchronization.

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This explainer was generated by Manning's knowledge graph from the text of Python Concurrency with asyncio. The section links point to the parts of the book it draws on.