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In Python, a function is a block of code that performs a specific task and can be called from other parts of a program. Functions provide a way to organize code, making it easier to understand, reuse, and modify.

Here’s the basic syntax for defining a function in Python:

def function_name(arguments):
# code to be executed
return value

The def keyword is used to declare a function, followed by the name of the function, a set of parentheses, and a colon. The code to be executed by the function is indented and written within the function body. The return statement is used to return a value from the function.

Functions can take arguments as inputs and can also return values. Arguments are specified within the parentheses and separated by commas. The return statement can be omitted if the function does not return any value.

Here’s an example of a simple function that takes two arguments and returns their sum:

def add(a, b):
result = a + b
return result

sum = add(8, 3)
print(sum) # Output: 11

Functions in Python can be called from other functions, allowing for the creation of complex programs. They also allow for code reuse, making it easier to maintain and modify a program over time.

Disclaimer: The information provided on the blog is for educational and informational purposes only. It should not be considered as a substitute for professional advice.