Coroutines in Python

The building blocks of asynchronous programming. Prerequisites: You should know about iterators and how a for loop in Python works behind the scenes. You don’t need to know anything about generators, coroutines, or the yield keyword.

Prerequisites: You should know about iterators and how a for loop in Python works behind the scenes. You don’t need to know anything about generators, coroutines, or the `yield_` keyword._

Just a quick overview of how a for loop works in Python:

OUTPUT :

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The code above is equivalent to the code given below:

OUTPUT :

1
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5

What Are Coroutines?

Coroutines are basically functions whose execution can be paused/suspended at a particular point, and then we can resume the execution from that same point later whenever we want.

We need a mechanism — or to be more precise, a keyword — by which we can insert a checkpoint and tell the program that we want to pause the execution of the function here and return control to the point it called from. We’ll resume the execution whenever we want.

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