In Python, you can define a function by using the keyword "def" followed by the function name and parentheses containing any parameters the function may require. You can then write the code block for the function within an indented block. Functions can also return a value using the "return" keyword. Functions in Python can be called by simply using the function name followed by parentheses with any required arguments. Functions are a way to encapsulate blocks of code for reusability and can help in making your code more modular and organized.
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How to create a function in Python?
To create a function in Python, you can use the def keyword followed by the function name and parentheses containing any parameters the function requires. Here is an example of a simple function that takes two numbers as arguments and returns their sum:
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def add_numbers(num1, num2): sum = num1 + num2 return sum |
You can then call this function by providing the required arguments:
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result = add_numbers(5, 10) print(result) # Output will be 15 |
What is a function parameter in Python?
A function parameter in Python is a variable that is used to specify and pass arguments to a function. It is defined in the function signature and can be used to receive input values that the function will operate on. Parameters can be required or optional, and they allow for flexibility in how the function is used and can be customized for different inputs.
How to pass arguments to a Python function?
Arguments can be passed to a Python function by defining the parameters within the parentheses of the function definition. Here is an example of how to define a function with arguments:
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def greet(name): print("Hello, " + name) # Call the function with an argument greet("Alice") |
In this example, the greet function takes one argument name. When the function is called with greet("Alice"), the value "Alice" is passed as an argument to the function. The function then prints "Hello, Alice" to the console.
