aws-cdk-wrapper 2.1003.0

Python wrapper for AWS CDK CLI with on-demand Node.js runtime

AWS CDK Python Wrapper

A Python package that provides a wrapper around the AWS CDK CLI tool, allowing Python developers to install and use AWS CDK via pip/uv instead of npm. This package downloads and uses a platform-specific Node.js runtime during installation, eliminating the need for a separate npm/Node.js installation.

How It Works

This package uses a source-only distribution approach:

1. When installed, it downloads the appropriate Node.js binaries for your specific platform (Windows, macOS, or Linux)
2. It bundles the AWS CDK JavaScript code but downloads platform-specific binaries on demand
3. This approach keeps the package size small while ensuring compatibility across platforms

Why Use This Package?

If you're a Python developer working with AWS CDK, you typically need to install Node.js and npm first, then install the CDK CLI globally using npm. This wrapper eliminates that requirement by downloading a minimal Node.js runtime and bundling the CDK CLI code directly into a Python package.

Benefits:

• No need to install or configure Node.js/npm
• Works in environments where npm installation is restricted
• Keeps AWS CDK installations isolated in Python virtual environments
• Consistent CDK versioning tied to your Python dependencies
• Optimized package size with platform-specific binary downloads

Installation

# Using pip
pip install aws-cdk-wrapper

# Using uv
uv pip install aws-cdk-wrapper

# Install a specific version
pip install aws-cdk-wrapper==2.108.0

Note: During installation, the package will download the appropriate Node.js binaries for your platform. This requires an internet connection for the initial setup.

Features

• Zero npm dependency: No need to install Node.js or npm on your system
• Platform support: Downloads appropriate Node.js binaries for Windows, macOS, and Linux
• Automatic updates: Stays in sync with official AWS CDK releases
• Seamless integration: Use the same CDK commands you're familiar with
• Offline caching: Downloaded binaries are cached for offline usage
• License compliance: Includes all necessary license texts
• Optimized size: Only downloads the binaries needed for your platform

Usage

After installation, you can use the cdk command just as you would with the npm version:

# Initialize a new CDK project
cdk init app --language python

# Deploy a CDK stack
cdk deploy

# List all CDK stacks
cdk list

# Show version information
cdk --version

# Additional wrapper-specific commands
cdk --verbose     # Show detailed installation information
cdk --license     # Show license information
cdk --update      # Update to the latest AWS CDK version
cdk --offline     # Run in offline mode using cached packages

How It Works

This package:

1. Bundles a lightweight Node.js runtime specific to your platform
2. Includes the AWS CDK JavaScript code directly in the package
3. Creates Python wrappers that forward commands to the bundled Node.js runtime
4. Handles path resolution and execution of the underlying CDK commands

Supported Platforms

• Windows (x86_64)
• macOS (Intel and Apple Silicon)
• Linux (x86_64 and ARM64)

If you're using an unsupported platform, please open an issue on our GitHub repository.

Directory Structure

The package has the following structure:

aws_cdk/
├── __init__.py           # Package initialization
├── cli.py                # Command-line interface implementation
├── installer.py          # Node.js and CDK installation logic
├── post_install.py       # Post-installation script
├── version.py            # Version information
├── node_binaries/        # Platform-specific Node.js binaries
│   ├── darwin/           # macOS binaries
│   │   ├── arm64/        # Apple Silicon
│   │   └── x86_64/       # Intel
│   ├── linux/            # Linux binaries
│   │   ├── aarch64/      # ARM64
│   │   └── x86_64/       # x86_64
│   └── windows/          # Windows binaries
│       └── x86_64/       # x86_64
└── node_modules/         # CDK JavaScript code
    └── aws-cdk/          # AWS CDK npm package

Testing the Implementation

The package includes a comprehensive test suite to ensure functionality across different platforms. You can run tests using the included Makefile:

# Install development dependencies
pip install -e ".[dev]"

# Run basic tests (fast tests only)
make test

# Run all tests including slow tests that create real CDK apps
make test-slow

# Test local installation in a new virtual environment
make test-local

Manual Testing

You can also manually test the package:

# Install in development mode
pip install -e .

# Try importing the package
python -c "import aws_cdk; print(aws_cdk.__version__)"

# Test the CDK CLI
cdk --version

# Create and test a CDK app
mkdir test-app && cd test-app
cdk init app --language=python
cdk synth

Troubleshooting

Permission Issues

If you encounter permission issues when running cdk commands, try:

• Using a virtual environment
• Using the --user flag with pip install
• Running with elevated privileges if appropriate for your environment

Extracting Binaries

If you encounter issues with binary extraction during installation:

• Ensure you have sufficient disk space
• Check write permissions in your Python packages directory
• Try reinstalling the package

Network Connectivity

If you encounter network-related issues:

• Try running in offline mode (cdk --offline) if you've previously installed
• Check your network connectivity and proxy settings
• If behind a corporate proxy, set the appropriate HTTP_PROXY environment variables

Environment Variables

The package respects the following environment variables:

• AWS_CDK_OFFLINE: Set to "1" to use cached packages without network access
• AWS_CDK_DEBUG: Set to "1" for verbose debug output
• HTTP_PROXY / HTTPS_PROXY: Used for network connections if set
• All standard AWS CDK environment variables

License Information

This package contains:

• AWS CDK (Apache License 2.0)
• Node.js (MIT License)

All copyright notices and license texts are included in the distribution. You can view the licenses using:

cdk --license

Version Synchronization

The version of this Python package matches the version of the AWS CDK npm package it wraps. Updates are automatically published when new versions of AWS CDK are released.

Contributing

Contributions are welcome! Please feel free to submit a Pull Request.

Development Setup

1. Clone the repository

   git clone https://github.com/your-org/aws-cdk.git
   cd aws-cdk
   

2. Create a virtual environment

   python -m venv .venv
   source .venv/bin/activate  # On Windows: .venv\Scripts\activate
   

3. Install in development mode

   pip install -e ".[dev]"
   

4. Run tests

   make test
   

Building from Source

python -m build

Acknowledgements

• AWS CDK - The original AWS CDK project
• Node.js - JavaScript runtime bundled with this package