![]() Backtracking: Maintain a list of options in the order they were encountered or made available, in case the current option fails.Parsers: Maintain a list of expressions in the order they must be executed.Depth-First: Maintaining a list of nodes when navigating a tree or graph in a depth-first manner.Undo: Maintaining changes to an object so that they can be undone or reversed in the order they were applied.To better understand LIFO ordering, let’s look at some examples of where it may be used.Ī LIFO queue or Stack is useful in many programming situations. What is LIFO and what is the LifoQueue and how can we use it in Python?ĭownload my FREE PDF cheat sheet When to use a LIFO Queue Python provides a number of thread-safe queues in the queue module, such as the queue.LifoQueue class. One approach to sharing data is to use a queue data structure. In concurrent programming, we often need to share data between threads. ![]() Threading in Python: The Complete Guide.You can learn more about Python threads in the guide: Python provides the ability to create and manage new threads via the threading module and the threading.Thread class. ![]() Sometimes we may need to create additional threads in our program in order to execute code concurrently. Both processes and threads are created and managed by the underlying operating system. A thread is a thread of execution in a computer program.Įvery Python program has at least one thread of execution called the main thread. ![]()
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