Python Formatter

Python code formatter and syntax highlighter for clean and readable Python source code

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INPUT PYTHON

#!/usr/bin/env python3
# -*- coding: utf-8 -*-

"""
Simple Python script example
This demonstrates basic Python formatting patterns
"""

import os
import sys
from typing import List, Dict, Optional

class DataProcessor:
    """A simple data processor class."""
    
    def __init__(self, name: str, debug: bool = False):
        self.name = name
        self.debug = debug
        self.data: List[Dict] = []
    
    def add_item(self, item: Dict) -> None:
        """Add an item to the processor."""
        if self.debug:
            print(f"Adding item: {item}")
        self.data.append(item)
    
    def process_data(self) -> Optional[List[Dict]]:
        """Process the stored data."""
        if not self.data:
            return None
        
    processed = []
    for item in self.data:
        if 'value' in item and item['value'] > 0:
            processed.append({
                'id': item.get('id', 0),
                'value': item['value'] * 2,
                'processed': True
            })
    
    return processed if processed else None

def main():
    """Main function."""
    processor = DataProcessor("example", debug=True)
    
    # Sample data
    sample_data = [
        {'id': 1, 'value': 10},
        {'id': 2, 'value': 0},
        {'id': 3, 'value': 25}
    ]
    
    for item in sample_data:
        processor.add_item(item)
    
    result = processor.process_data()
    if result:
        print("Processed data:")
        for item in result:
            print(f"  ID: {item['id']}, Value: {item['value']}")
    else:
        print("No data to process")

if __name__ == "__main__":
    main()

OPTIONS

Tool Type

Beautify

Indentation Type

Spaces

How many whitespaces

Preserve existing line breaks

Normalize quotes to double quotes

Format f-strings with proper spacing

Python (highlighted)

Why use a Python formatter?

Python formatters ensure PEP 8 compliance, improve code readability, and maintain consistent style. Proper formatting reduces syntax errors, enhances collaboration, and makes code maintenance easier by following Python's official style guidelines.

What does Python formatting do?

Python formatting standardizes indentation (4 spaces per PEP 8), operator spacing, import organization, and line spacing. It beautifies code while maintaining Python's indentation-based structure and following community standards.

How to format Python code?

Paste your Python code in the input area, configure your formatting preferences (indentation, quote normalization, string formatting), and the formatter will automatically process your code following PEP 8 guidelines. The result can be copied or downloaded as a .py file.