Hey there! Based on your needs—looking for a flexible, Yeoman-like alternative to Angular CLI that can generate services (similar to ng g s myservice) and output either JavaScript or Python code—I’ve got a few solid, battle-tested recommendations for you:

1. Yeoman (the OG Universal Scaffolder) #

Yeoman is exactly the kind of flexible tool you’re after. Its massive ecosystem has generators for nearly every language and framework, including JS and Python. To replicate that Angular CLI service generation workflow:

• For JavaScript/TypeScript services: Look for existing generators like generator-node (for backend services) or build your own custom generator. Many generators support commands like yo node:service myservice to spin up a service file, and if you need a structure that matches your exact needs, creating a custom generator is straightforward—you just define template files with variable placeholders, and Yeoman handles the rest.
• For Python services: Generators like generator-python-flask (for Flask-based services) or generator-django can create service/utility modules. If you want a generic Python service, you can whip up a simple custom generator that outputs a basic service class with your preferred structure.

2. Plop (Lightweight, Project-Specific Generation) #

If you don’t need a full ecosystem like Yeoman and just want to add code generation directly to your existing projects, Plop is a fantastic choice. It’s lightweight, easy to set up, and supports both JS and Python templates:

• You’ll create a plopfile.js where you define your generators (e.g., a "service" generator). For example, your service generator can prompt for the service name, then output either a JS service module or a Python class based on predefined templates.
• To mimic ng g s myservice, you’d run plop service myservice—Plop will drop the generated file right where you want it in your project structure.

3. Cookiecutter (Multi-Language Project & File Scaffolding) #

Cookiecutter is widely used for generating full project structures, but it works equally well for creating individual files like services. It’s language-agnostic, so it’s perfect for both JS and Python:

• For Python: Create a cookiecutter template that defines a service class, then run cookiecutter <your-template-path> service_name=myservice to generate the file.
• For JavaScript: There are pre-made cookiecutter templates for Node.js services, or you can build your own template for JS service files that fits your project’s style.
• It’s especially handy if you want to generate not just services but entire project scaffolds across languages.

4. Hygen (Fast, Template-Driven Code Generation) #

Hygen is another lightweight, no-fuss tool that uses simple templates to generate consistent code. It’s language-agnostic, so it works seamlessly for both JS and Python:

• You organize your templates in a _templates folder, with separate directories for each generator type (like service). Each generator can include a prompt file to capture input (like the service name) and template files with variable placeholders.
• Running hygen service new --name myservice will generate your service file—whether that’s a JS module or a Python class—based on your templates. It’s super fast and great for teams that want consistent code without the overhead of a larger tool.

Final Notes #

• If you want maximum flexibility and a huge library of pre-built generators, go with Yeoman.
• For project-specific, lightweight generation, Plop or Hygen are ideal.
• If you need multi-language project scaffolding (including services), Cookiecutter is a solid pick.

All of these tools let you replicate that Angular CLI-style service generation workflow, but tailored to JavaScript or Python projects.

内容的提问来源于stack exchange，提问作者user6039980