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Python Code Samples

Easy snippets you can copy, study, and run in the browser editor.

3 matches
Files & data easy

Convert All Markdown Files in a Folder to HTML in Python

Batch convert every .md file in a folder to .html using the `markdown` library with the 'extra' extensions.

markdown html batch-conversion
Python
import os
import markdown
from pathlib import Path

def convert_md_folder_to_html(input_folder="markdown_files", output_folder="html_pages"):
    input_path = Path(input_folder)
    output_path = Path(output_folder)
    output_path.mkdir(exist_ok=True)
    
    for md_file in input_path.glob("*.md"):
        with open…
25 0 Open
Files & data easy

Convert CSV Files to JSON in Python

Convert a CSV file to a JSON file using Python's built-in csv and json modules.

csv json conversion
Python
import csv
import json

def csv_to_json(csv_filepath, json_filepath):
    """Convert a CSV file to a JSON file."""
    with open(csv_filepath, mode='r', newline='') as csv_file:
        reader = csv.DictReader(csv_file)
        data = [row for row in reader]

    with open(json_filepath, mode='w') as json_file:
      …
43 0 Open
Files & data easy

How to Convert Images Between Formats in Python

Use the Pillow library to open an image from one file format and save it to another, with error handling for missing files or conversion issues.

pillow image conversion file i/o
Python
from PIL import Image
import sys

def convert_image_format(input_path, output_path):
    try:
        img = Image.open(input_path)
        img.save(output_path)
        print(f"Converted {input_path} to {output_path}")
    except FileNotFoundError:
        print(f"Error: File {input_path} not found")
        sys.exit(…
18 0 Open

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Each section groups closely related Python snippets.

Guide: free Python code samples library

Copy-ready Python snippets for learners and developers

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.

How to use this library

  1. Pick a topic section — strings, lists, files, functions, and more
  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

Samples vs tutorials and challenges

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.