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What is the "while" loop in Python and how to use it?

The "while" loop in Python allows you to repeatedly execute a block of code as long as a certain condition is met. The syntax for the "while" loop is as follows:

while condition:
    # Code to be executed

The code within the loop will continue to execute until the condition becomes false. It's important to make sure the condition will eventually become false, otherwise the loop will run forever and cause an infinite loop. 

For example:

count = 0

while count < 5:
    print(count)
    count += 1

In this example, the loop will print the values 0 through 4, and then exit because **count** is no longer less than 5.

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