black

black Plugin

Uncompromising Python code formatter.

Commands

Format

• black format run — Format Python files (dry run with diff)
• black format write — Format Python files in-place

Usage Examples

• "Format this Python file"
• "Check if my Python code is formatted correctly"
• "Auto-format all Python files in the project"
• "Show what would change without applying"

Installation

pip install black

Examples

# Format files in-place
black .

# Check formatting
black --check .

# Show diff
black --diff .

# Specific line length
black --line-length 100 .

# Fast mode (skip regex)
black --fast .