Functions and modules in Python
Functions are a way to encapsulate a block of code that can be executed repeatedly in a program. In Python, you define a function using the def keyword, followed by the function name, and a set of parentheses that may include one or more parameters. Here is an example: def greet(name): print('Hello, ' + name + '!') greet('Alice') # Output: Hello, Alice! In this example, we define a function called greet() that takes one parameter, name , and uses the print() function to output a greeting. Default Parameter Values You can also provide default values for parameters in a function, so that they don't have to be specified every time the function is called. Here is an example: def greet(name='world'): print('Hello, ' + name + '!') greet() # Output: Hello, world! greet('Alice') # Output: Hello, Alice! In this example, the greet() function has a default parameter value of 'world' , which is use...