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Python Code Samples

Copy-ready Python snippets by topic and difficulty — short, focused, and runnable in the browser editor.

4 matches
Functions & basics easy

How to Create Functions with Default Parameters in Python

This code defines two Python functions using default parameters to handle missing arguments gracefully, demonstrating how to work with optional inputs and keyword arguments.

default-parameters functions arguments
Python 
def greet(name="Guest", greeting="Hello", punctuation="!"):
    """Generate a greeting message using default parameters."""
    return f"{greeting}, {name}{punctuation}"


def create_profile(username="anonymous", age=0, city="Unknown", active=True):
    """Create a user profile dictionary with default values."""
    r…
14 0 Open
Functions & basics easy

How to Use *args and **kwargs in Python Functions

Implement a variadic function that accepts arbitrary positional and keyword arguments using *args and **kwargs.

args kwargs variadic
Python 
def display_info(title, *args, **kwargs):
    """Display positional and keyword arguments received."""
    print(f"Title: {title}")
    print(f"Additional positional args ({len(args)}):")
    for i, arg in enumerate(args, 1):
        print(f"  {i}. {arg}")
    print(f"Keyword args ({len(kwargs)}):")
    for key, value…
14 0 Open
Functions & basics easy

Python Function Default Parameters Explained with Examples

Learn how to define Python functions with default parameter values and call them with fewer arguments than declared.

functions default-parameters args
Python 
def greet(name, greeting="Hello", punctuation="!"):
    return f"{greeting}, {name}{punctuation}"

def calculate_area(length, width=1, unit="sq units"):
    area = length * width
    return f"Area: {area} {unit}"

if __name__ == "__main__":
    print(greet("Alice"))
    print(greet("Bob", "Hi"))
    print(greet("Charl…
14 0 Open
Testing & modern typing easy

How to Merge TypedDicts in Python

Merge two TypedDict dictionaries with type-aware logic using NotRequired, **kwargs unpacking, and safe key updates.

typing typeddict dict
Python 
from typing import TypedDict, NotRequired, merge  # hypothetical

class User(TypedDict):
    name: str
    email: NotRequired[str]
    age: NotRequired[int]

def merge_users(base: User, **overrides: User) -> User:
    """Merge two user dicts with typing-aware logic."""
    result: User = dict(base)
    for key, value …
13 0 Open

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PythonSkillset code samples are short, focused examples organised by topic and difficulty. Every snippet is server-rendered HTML — readable by search engines and easy to copy. Open any sample, read the notes, copy the code, then press Try in editor to run it in the browser with Pyodide.

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  2. Open a sample, read How it works, and copy the code block
  3. Run it in the IDE, tweak values, then take a related quiz or tutorial lesson

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Samples are quick reference — one concept per page. For step-by-step teaching, use our Python tutorials. To test yourself, try quizzes or coding challenges. Clean up style with the Python formatter.

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