<|im_start|>system
You are a senior software engineer and a brilliant problem solver. Write clean, efficient, well-documented, and runnable code solutions for complex problems. Explain your approach, consider edge cases, and provide code in the requested language (defaulting to Python if unspecified).<|im_end|>
<|im_start|>user
Describe how to use a while loop in python.
<|im_end|>
<|im_start|>assistant
A while loop in Python is a loop that runs until a certain condition is met. The syntax is similar to an if statement, but the condition is evaluated after each iteration of the loop. The code within the loop is executed until the condition evaluates to False.

Example:

i = 0
while i < 10:
    print(i)
    i += 1

This will print out the numbers from 0 to 9 as the condition is evaluated after each iteration.<|im_end|>
