Basic Input and Output

Function

A self-contained block of code that performs a specific task, such as printing information.

Function Identifier

The name of the function, typically written in lowercase with underscores between words.

Argument

A value passed to a function within parentheses; may affect how the function behaves.

Return Value

The output that a function gives back after execution. Some functions may not return anything.

print() Function

A built-in function used to display text or data to the console or a file.

print()

objects Parameter

print() sep Parameter

Defines the separator between objects; default is a single space (' ').

print() end Parameter

Defines what’s printed at the end of the output; default is a newline character ('\n').

print() file Parameter

Specifies the destination file object; default is sys.stdout (the console).

print() flush Parameter

Boolean flag to determine whether to flush the output buffer immediately; default is False.

f-string

A formatted string literal in Python using f before the string to embed expressions with {}.

input() Function

A function that prompts the user to enter input from the keyboard; always returns a string.

input() Syntax

input(prompt: string) — displays a prompt and waits for user input.

Data Type of input()

Input received using input() is always treated as a string, even if it looks like a number.