Basics
Python Arguments
Function Arguments in Python
Python arguments include positional and *args, with keyword defaults.
Introduction to Python Arguments
In Python, functions can accept various types of arguments to allow for flexible and dynamic code. Understanding these arguments is crucial for writing effective Python code. This guide covers positional arguments, *args, and keyword arguments with defaults.
Positional Arguments
Positional arguments are the most straightforward type of argument. The order in which they are specified in the function call is used to map them to the function's parameters.
Here's how they work:
Using *args for Variable Arguments
The *args syntax allows a function to accept any number of positional arguments. The function treats *args as a tuple, allowing you to iterate over it or access individual elements.
Here's an example:
Keyword Arguments with Defaults
Keyword arguments allow you to specify default values for parameters. This means that if a value is not provided for that argument, the default will be used.
Here's how to define and use keyword arguments:
Combining Positional, *args, and Keyword Arguments
Python allows you to combine positional arguments, *args, and keyword arguments in a single function. The order is important: positional arguments first, followed by *args, and then keyword arguments.
Here's an example:
This function accepts a name as a positional argument, any number of hobbies as *args, and a keyword argument country with a default value. You can see that the function call specifies the country by name, overriding the default.
Basics
- Introduction
- Installation
- Running Code
- Syntax
- Variables
- Data Types
- Numbers
- Strings
- Booleans
- Type Conversion
- Operators
- Ternary Operator
- If Else
- Match Case
- While Loops
- For Loops
- Lists
- Tuples
- Dictionaries
- Sets
- Comprehensions
- Functions
- Arguments
- Scope
- Errors
- Debugging
- String Formatting
- Security Basics
- Best Practices
- User Input
- Built-in Functions
- Keywords
