October 2018
Beginner to intermediate
466 pages
12h 2m
English
Content preview from Python 3 Object-Oriented Programming - Third Edition
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Threads
Most often, concurrency is created so that work can continue happening while the program is waiting for I/O to happen. For example, a server can start processing a new network request while it waits for data from a previous request to arrive. Or an interactive program might render an animation or perform a calculation while waiting for the user to press a key. Bear in mind that while a person can type more than 500 characters per minute, a computer can perform billions of instructions per second. Thus, a ton of processing can happen between individual key presses, even when typing quickly.
It's theoretically possible to manage all this switching between activities within your program, but it would be virtually impossible to get right. ...
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