Python3 Queue (one-way Queue), python3queue Queue

Python3 Queue (one-way Queue), python3queue Queue

Create a queue

Import queueq = queue. Queue ()

Empty (True if the queue is empty)

Import queueq = queue. Queue () print (q. empty () # output: True

Full (True if the queue is full)

Import queueq = queue. Queue (1) # specify the queue size q. put ('A') print (q. full () # output: True

Put (put an element into the queue) get (retrieve an element from the queue) first-in-first-out principle

Import queueq = queue. Queue () q. put ('A') q. put ('B') print (q. get () # output:

Get_nowait (retrieve an element immediately without waiting)

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Put_nowait (put an element immediately without waiting)

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Join (blocking call threads until all tasks in the queue are processed)

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Qsize (return the number of elements in the queue)

Import queueq = queue. Queue () q. put ('A') q. put ('B') print (q. qsize () # output: 2

Task_done (send a signal to the completed queue after a task is completed)

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